Hiromi IinumaAssociate Professor
■Researcher basic information
Organization
Career
- Apr. 2011 - Sep. 2016, High Energy Accelerator Research Organization, Accelerator Laboratory, Assistant Professor
- Jul. 2008 - Mar. 2011, High Energy Accelerator Research Organization, Institute of Particle and Nuclear Studies, 研究員
- Nov. 2006 - Jun. 2008, Brookhaven National Laboratory, Physics Department, Research Associate
- Apr. 2006 - Oct. 2006, 理化学研究所, 延與放射線研究室
External link
■Research activity information
Award
- Nov. 2023, Flavor Physics Workshop 2023 (FPWS2023) Best poster award
小久保拓登(飯沼研修士2年)
Japan society - Sep. 2023, 日本加速器学会 年会賞 第20回年会 (第12回), Storage beam monitor for presice three-dimensional beam injection at J-PARC muon g-2/EDM experiment, 日本加速器学会
小川真治
Japan society - Aug. 2023, 第19回 日本加速器学会 学会賞, J-PARC ミュオン g−2/EDM 精密測定実験に向けたミュオン線形加速器の開発, 日本加速器学会
中沢雄河(飯沼研卒業生)
Japan society - Feb. 2023, 2022年度「第10回 湯浅年子賞（銀賞）」, ミュオン異常磁気能率・電気双極子能率の同時観測法の開発, お茶の水女子大学、日仏素粒子物理学研究所 湯浅年子ラボラトリー（TYL）
飯沼裕美
International academic award - Sep. 2022, Student poster prize of 31st International Linear Accelerator Conference LINAC2022 delivered in Liverpool, High Power Test of an APF IH-DTL Prototype for the Muon Linac, the Institute of Physics and the Institution of Engineering and Technology
Y. Nakazawa
International society - Apr. 2022, Student Presentation Award of the Physical Society of Japan, J-PARC muon g-2/EDM実験：ミューオン線形加速器における中エネルギービーム輸送ラインの基礎設計, 日本物理学会
中沢雄河(量子線科学専攻博士後期課程3年)
Japan society - Nov. 2019, 若手発表賞（研究機関・大学・企業等に所属する45歳未満のビーム物理研究やビームに関連する装置開発・運用に関わる若手研究者、技術者、大学院生、学生を対象）, ミューオン異常磁気能率精密測定におけるIH-DTLを用いたミューオン加速の現状, ビーム物理研究会・若手の会
中沢雄河
Japan society - Oct. 2019, 学生ポスター賞, Current status of the muon acceleration with IH-DTL in the muon g-2/EDM experiment, 茨城大学大学院理工学研究科量子線科学専攻
中沢雄河 - 13 Nov. 2018, KEKスチューデント・デイ機構長賞, 高エネルギー加速器研究機構
中沢雄河;量子線科学専攻ビームライン科学コ - Nov. 2018, KEKスチューデント・デイ機構長賞, 高エネルギー加速器研究機構
中沢雄河(量子線科学専攻ビームライン科学コース1年) - Sep. 2010, 若手奨励賞受賞（実験核物理領域）, 日本物理学会
Japan society - Jul. 2007, RHIC-AGS Thesis Award Competition, Brookhaven National Laboratory
International society
Paper
- 〔Major achievements〕Precise control of a strong X-Y coupling beam transportation for J-PARC muon g-2/EDM experiment
H. Iinuma, Lead, To explore the beyond standard model of elementary physics, we proceed a new fundamental physics experiment, J-PARC muon g-2/EDM experiment. To realize very precise measurement of the muon spin precession frequency in the level of sub-ppm, a relativistic energy of muon beam is injected into a precisely adjusted storage magnet of sub-ppm uniformity by applying medical MRI magnet technologies. Three-dimensional spiral beam injection scheme is intended to storage in 0.66 m diameter compact ring, we have carefully studied of a spatial distribution of a radial magnetic field of the storage magnet and required beam phase space, especially for a strong X-Y coupling. In this presentation, we will discuss about a strategy to precise control of the X-Y coupling at the beam transport line: how to detect X-Y coupling from a beam phase space, how to control X-Y coupling with eight independent rotatable quadrupole magnets. We also discuss about how to apply fine-tuning of the beam trajectory without disturbing the magnetic field in the beam storage volume, by use of active shield multipole coils. Finally, we will report detailed studies of X-Y control at a demonstration beam line in KEK which proves the three-dimensional injection scheme is realistic one, as well as further challenges towards the original beam line at J-PARC.
14th International Particle Accelerator Conference, 07 May 2023, [Reviewed] - 〔Major achievements〕Demonstration of Three-dimensional Spiral Injection for the J-PARC Muon g-2/EDM Experiment
R. Matsushita, Last, In the J-PARC Muon g-2/EDM experiment, to measure muon g-2 and EDM, it is necessary to accumulate 300 MeV/c muon beams with a 66 cm diameter region with a 3 T solenoid-type magnetic field. A new three-dimensional spiral injection scheme has been invented to achieve this target. Since this is the first instance to employ this injection scheme, a scale-down experiment with an electron beam of 297 keV/c and storage beam diameter of 24 cm is established at KEK. A simplified storage beam monitor using scintillating fiber has been designed and fabricated to measure the stored beam. The 100 nanosecond width pulsed beam is injected and observed a few microsecond signals by stored beam monitor. According to this result, the beam storage is confirmed. And the recent result shows that the stored beam deviated from the design orbit and caused betatron oscillations. To measure the beam deviation quantitatively and tune the beam, the storage monitor has been updated. The data from this stored beam monitor are the primary data for considering the conceptual design of the beam monitor for the Muon g-2/EDM experiment. This talk will discuss the measurement of beam storage by three-dimensional spiral injection and beam tuning using a scintillating fiber monitor.
14th International Particle Accelerator Conference, 07 May 2023, [Reviewed] - Development of precise shimming technique with materials having low saturation magnetization
K. Sasaki; M. Sugita; M. Abe; H. Iinuma; C. Ogane; T. Mibe; K. Shimomura; T. Ogitsu, IEEE Transactions on Applied Superconductivity
IEEE Transactions on Applied Superconductivity, 20 Jul. 2022, [Reviewed], [Invited] - Design method of active shield steering magnet for fine tuning of muon injection orbit into g-2/EDM precision measurements magnet
M. Abe; T. Ogitsu; N. Saito; K. Sasaki; T. Mibe; H. Nakayama; H. Iinuma, IEEE Transactions on Applied Superconductivity
IEEE Transactions on Applied Superconductivity, 13 Jul. 2022, [Reviewed] - 〔Major achievements〕Design of a strong X-Y coupling beam transport line for J-PARC muon g-2/EDM experiment
H. Iinuma; H. Nakayama; M. Abe; Ken-ichi Sasaki; T. Mibe, Lead, Institute of Electrical and Electronics Engineers (IEEE)
IEEE 27th International Conference on Magnet Technology Special Issue Submissions, 07 Mar. 2022, [Reviewed] - 〔Major achievements〕CONTROL OF ROTATION ANGLES OF TRANSPORT LINE,QUADRUPOLE MAGNETS IN A DEMONSTRATION EXPERIMENT OF THREE-DIMENSIONAL SPIRAL BEAM INJECTION
平山穂香; 飯沼裕美; REHMAN Muhammad Abdul; 大澤哲; 染谷宏彦; 中山久義; 古川和朗; 三部勉
Proceedings of the 18th Annual Meeting of Particle Accelerator Society of Japan, 18 Oct. 2021, [Reviewed] - 〔Major achievements〕UPDATED MAGNETIC DESIGN OF MUON STORAGE MAGNET FOR G-2/EDM,PRECISION MEASUREMENTS
阿部充志; 萩津透; 齊藤直人; 佐々木憲一; 三部勉; 中山久義; 飯沼裕美
日本加速器学会年会(Web), 18 Oct. 2021, [Reviewed] - The First Trial of XY-Coupled Beam Phase Space Matching for Three-Dimensional Spiral Injection
M.A. Rehman; K. Furukawa; H. Hisamatsu; T. Mibe; H. Nakayama; S. Ohsawa; N. Saito; K. Sasaki; H. Hirayama; H. Iinuma; K. Oda; R. Matsushita; N. Saito
Proceedings of the 12th International Particle Accelerator Conference, 01 Sep. 2021, [Reviewed] - Development of Pulsed Beam System for the Three Dimensional Spiral Injection Scheme in the J-PARC muon g-2/EDM Experiment
Proceedings of the 12th International Particle Accelerator Conference, 01 Sep. 2021, [Reviewed] - 〔Major achievements〕Delopments of a Pulse Kicker System for the Three-Dimensional Spiral Beam Injection of the J-PARC Muon g-2/EDM Experiment
K. Oda; H. Hirayama; H. Iinuma; Y. Sato; M. Sugita; M. Abe; K. Furukawa; T. Mibe; H. Nakayama; S. Ohsawa; M.A. Rehman; N. Saito; K. Sasaki; R. Matsushita, Corresponding
IEEE 27th International Conference on Magnet Technology Special Issue Submissions, 31 Mar. 2021, [Reviewed] - 〔Major achievements〕Control of the Rotatable-Quadrupole Magnet Angle for a 3-D Spiral Injection Test Experiment
Corresponding
IEEE 27th International Conference on Magnet Technology Special Issue Submissions, 22 Mar. 2021, [Reviewed] - Introduction of fundamental physics experiments by J-PARC muon beam
H.Iinuma
Journal of Computer Chemistry, 03 Dec. 2020, [Reviewed] - Precise operation of superconducting magnet for beam capture applying whole-body MRI magnet technology
杉田 萌; 飯沼 裕美; 大金 千織; 佐々木 憲一; 阿部 充志; 三部 勉; 荻津 透; 下村 浩一郎
10 Sep. 2020, [Reviewed] - The status report of demonstrative experiment of 3D spiral beam injection for J-PARC muon g-2/EDM experiment
平山 穂香; 飯沼 裕美; リーマン モハメド アブドゥル; 古川 和朗; 大澤 哲; 中山 久義; 三部 勉
日本加速器学会年会(Web), 10 Sep. 2020, [Reviewed] - Beam measurement of medium energy beam transport line (MEBT1) to improve injection beam matching in J-PARC linac DTL
楊井 京輔; 飯沼 裕美; 大谷 将士; 近藤 恭弘; 平野 耕一郎; 宮尾 智章; 守屋 克洋
10 Sep. 2020, [Reviewed] - Current status for high-power tests of an APF IH-DTL prototype in the muon LINAC
10 Sep. 2020, [Reviewed] - Development of a diagnostic beamline for the demonstration of the muon acceleration with an APF IH-DTL
中沢雄河; 飯沼裕美; 岩下芳久; 岩田佳之; CICEK Ersin; 大谷将士; 河村成肇; 北村遼; 近藤恭弘; 近藤恭弘; 齊藤直人; 須江祐貴; 竹内佑甫; 長谷川和男; 林崎規託; 三部勉; 森下卓俊; 安田浩昌; 山崎高幸; 吉田光弘; 四塚麻衣
日本加速器学会年会(Web), 10 Sep. 2020, [Reviewed] - Discussions of beam control and monitoring method of transport section for 3-D spiral beam injection using strong X-Y coupling
飯沼 裕美; 阿部 充; 大澤 哲; 佐々木 憲一; 中山 久義; 古川 和朗; 三部 勉; 平山 穂香; Rehman Abdul, Lead
日本加速器学会年会(Web), 10 Sep. 2020, [Reviewed] - Test bench study of vertical beam kicker device for 3-D spiral beam injection experiment
飯沼 裕美; 小田 航大; 平山 穂香; 高柳 智弘, Lead
10 Sep. 2020, [Reviewed] - Muon spin and super precise experiments for fundamental physics
会誌「めそん」日本中間子学会, 25 Aug. 2020, [Reviewed] - Development of a bunch-width monitor for low-intensity muon beam below a few MeV
Yuki Sue; Mai Yotsuzuka; Kenta Futatsukawa; Kazuo Hasegawa; Toru Iijima; Hiromi Iinuma; Kenji Inami; Katsuhiro Ishida; Naritoshi Kawamura; Ryo Kitamura; Yasuhiro Kondo; Tsutomu Mibe; Yasuhiro Miyake; Takatoshi Morishita; Yuga Nakazawa; Masashi Otani; Naohito Saito; Koichiro Shimomura; Yusuke Takeuchi; Takahiro Ushizawa; Takayuki Yamazaki; and Hiromasa Yasuda, American Physical Society (APS)
Physical Review Accelerators and Beams, 12 Feb. 2020, [Reviewed] - Beam commissioning of muon beamline using negative hydrogen ions generated by ultraviolet light
Y. Nakazawa; S. Bae; H. Choi; S. Choi; T. Iijima; H. Iinuma; N. Kawamura; R. Kitamura; B. Kim; H. S. Ko; Y. Kondo; T. Mibe; M. Otani; G. P. Razuvaev; N. Saito; Y. Sue; Eunil Won; T. Yamazaki; H. Yasuda, A muon linac is under development for the precise measurement of the muon anomalous magnetic moment (g-2) and electric dipole moment (EDM) with a reaccelerated thermal muon beam. An H− source driven by an ultraviolet light has been developed for the muon acceleration experiment. Prior to the acceleration experiment, a beamline commissioning was performed using this H− beam, since the accelerated muon intensity is very low. We successfully measured the magnetic rigidity, which is essential for identifying the accelerated muons. This H− source is capable of utilizing as a general-purpose beam source for other beamline., ELSEVIER
Nuclear Instriments and Methods in Physics Research Section A, 01 Sep. 2019, [Reviewed] - Beam Control and Monitors for the Spiral Injection Test Experiment
M.A. Rehman; K. Furukawa; H. Hisamatsu; T. Mibe; H. Nakayama; S. Ohsawa; H. Iinuma, Last, 10th International Particle Accelerator Conference (IPAC 2019)
J.Phys.Conf.Ser., 24 May 2019, [Reviewed] - A new approach for measuring the muon anomalous magnetic moment and electric dipole moment
M. Abe; S. Bae; G. Beer; G. Bunce; H. Choi; S. Choi; M. Chung; W. Da Silva; S. Eidelman; M. Finger; Y. Fukao; T. Fukuyama; S. Haciomeroglu; K. Hasegawa; K. Hayasaka; N. Hayashizaki; H. Hisamatsu; T. Iijima; H. Iinuma; H. Ikeda; M. Ikeno; K. Inami; K. Ishida; T. Itahashi; M. Iwasaki; Y. Iwashita; Y. Iwata; R. Kadono; S. Kamal; T. Kamitani; S. Kanda; F. Kapusta; K. Kawagoe; N. Kawamura; B. Kim; Y. Kim; T. Kishishita; R. Kitamura; H. Ko; T. Kohriki; Y. Kondo; T. Kume; M. J. Lee; S. Lee; W. Lee; G. M. Marshall; Y. Matsuda; T. Mibe; Y. Miyake; T. Murakami; K. Nagamine; H. Nakayama; S. Nishimura; D. Nomura; T. Ogitsu; S. Ohsawa; K. Oide; Y. Oishi; S. Okada; A. Olin; Z. Omarov; M. Otani; G. Razuvaev; A. Rehman; N. Saito; N. F. Saito; K. Sasaki; O. Sasaki; N. Sato; Y. Sato; Y. K. Semertzidis; H. Sendai; Y. Shatunov; K. Shimomura; M. Shoji; B. Shwartz; P. Strasser; Y. Sue; T. Suehara; C. Sung; K. Suzuki; T. Takatomi; M. Tanaka; J. Tojo; Y. Tsutsumi; T. Uchida; K. Ueno; S. Wada; E. Won; H. Yamaguchi; T. Yamanaka; A. Yamamoto; T. Yamazaki; H. Yasuda; M. Yoshida; T. Yoshioka, © 2019 The Author(s). This paper introduces a new approach to measure the muon magnetic moment anomaly aμ = (g - 2)/2 and the muon electric dipole moment (EDM) dμ at the J-PARC muon facility. The goal of our experiment is to measure aμ and dμ using an independent method with a factor of 10 lower muon momentum, and a factor of 20 smaller diameter storage-ring solenoid compared with previous and ongoing muon g - 2 experiments with unprecedented quality of the storage magnetic field. Additional significant differences from the present experimental method include a factor of 1000 smaller transverse emittance of the muon beam (reaccelerated thermal muon beam), its efficient vertical injection into the solenoid, and tracking each decay positron from muon decay to obtain its momentum vector. The precision goal for aμ is a statistical uncertainty of 450 parts per billion (ppb), similar to the present experimental uncertainty, and a systematic uncertainty less than 70 ppb. The goal for EDM is a sensitivity of 1.5 × 10-21 ecm., The Physics Society of Japan
Progress of Theoretical and Experimental Physics, 14 May 2019, [Reviewed] - Muon Acceleration Test with the RFQ Towards the Development of the Muon Linac
R. Kitamura; S. Bae; S. Choi; B. Kim; Y. Fukao; K. Futatsukawa; N. Kawamura; T. Mibe; Y. Miyake; T. Yamazaki; K. Hasegawa; Y. Kondo; T. Morishita; T. Iijima; Y. Sue; H. Iinuma; Y. Nakazawa; K. Ishida; S. Li; M. Otani; N. Saito; G.P. Razuvaev
LINAC2018 – Proceedings, Beijing, China, THPO010, 09 Sep. 2018, [Reviewed] - Progress of the Novel Three-dimensional Spiral Injection Scheme Test Experiment
M.R. Abdul; K. Furukawa; H. Hisamatsu; T. Mibe; H. Nakayama; S. Ohsawa; H. Iinuma, Corresponding
LINAC2018 – Proceedings, Beijing, China, THPO017, 09 Sep. 2018, [Reviewed] - Muon Profile Measurement After Acceleration With a Radio-Frequency Quadrupole Linac
M. Otani; Y. Fukao; K. Futatsukawa; N. Kawamura; T. Mibe; Y. Miyake; T. Yamazaki; S. Bae; H. Choi; S. Choi; B. Kim; H.S. Ko; K. Hasegawa; Y. Kondo; T. Morishita; T. Iijima; Y. Sue; H. Iinuma; Y. Nakazawa; K. Ishida; R. Kitamura; S. Li; G.P. Razuvaev; N. Saito; E. Won
International Particle Accelerator Conference (9th), IPAC2018, Vancouver, BC, Canada, 09 Aug. 2018, [Reviewed] - Commissioning of the Diagnostic Beam Line for the Muon RF Acceleration with H− Ion Beam Derived from the Ultraviolet Light
Y. Nakazawa; H. Iinuma; N. Kawamura; T. Mibe; M. Otani; T. Yamazaki; R. Kitamura; Y. Kondo; N. Saito; Y. Sue, JaCoW Publishing
9th International Particle Accelerator Conference,IPAC2018, Vancouver, BC, Canada, 09 Aug. 2018, [Reviewed] - THREE-DIMENSIONAL SPIRAL BEAM INJECTION FOR A COMPACT,STORAGE RING
H. Iinuma; K. Furukawa; H. Hisamatsu; H. Nakayama; S. Ohsawa; K. Oide; K. Sasaki; Y. Fukao; T. Mibe, Lead
Proceedings of IPAC2018, Vancouver, BC, Canada, 09 Aug. 2018, [Reviewed] - First muon acceleration using a radio-frequency accelerator
S. Bae; H. Choi; S. Choi; Y. Fukao; K. Futatsukawa; K. Hasegawa; T. Iijima; H. Iinuma; K. Ishida; N. Kawamura; B. Kim; R. Kitamura; H. S. Ko; Y. Kondo; S. Li; T. Mibe; Y. Miyake; T. Morishita; Y. Nakazawa; M. Otani; G. P. Razuvaev; N. Saito; K. Shimomura; Y. Sue; E. Won; and T. Yamazaki, Muons have been accelerated by using a radio-frequency accelerator for the first time. Negative muonium atoms (Mu-), which are bound states of positive muons (μ+) and two electrons, are generated from μ+'s through the electron capture process in an aluminum degrader. The generated Mu-'s are initially electrostatically accelerated and injected into a radio-frequency quadrupole linac (RFQ). In the RFQ, the Mu-'s are accelerated to 89 keV. The accelerated Mu-'s are identified by momentum measurement and time of flight. This compact muon linac opens the door to various muon accelerator applications including particle physics measurements and the construction of a transmission muon microscope., APS Physics
PHYSICAL REVIEW ACCELERATORS AND BEAMS, 18 May 2018, [Reviewed] - Magnetic design and method of a superconducting magnet for muon g−2/EDM precise measurements in a cylindrical volume with homogeneous magnetic field
M. Abe; Y. Murata; H. Iinuma; T. Ogitsu; N. Saito; K. Sasaki; T. Mibe; H. Nakayama, A magnetic field design method of magneto-motive force (coil block (CB) and iron yoke) placements for g−2/EDM measurements has been developed and a candidate placements were designed under superconducting limitations of current density 125 A/mm2 and maximum magnetic field on CBs less than 5.5 T. Placements of CBs and an iron yoke with poles were determined by tuning SVD (singular value decomposition) eigenmode strengths. The SVD was applied on a response matrix from magneto-motive forces to the magnetic fields in the muon storage region and two-dimensional (2D) placements of magneto-motive forces were designed by tuning the magnetic field eigenmode strengths obtained by the magnetic field. The tuning was performed iteratively. Magnetic field ripples in the azimuthal direction were minimized for the design. The candidate magnetic design had five CBs and an iron yoke with center iron poles. The magnet satisfied specifications of homogeneity (0.2 ppm peak-to-peak in 2D placements (the cylindrical coordinate of the radial position R and axial position Z) and less than 1.0 ppm ripples in the ring muon storage volume (0.318 m <
R<
0.348 m and -0.05 <
Z<
0.05 m) with 3.0 T strength and a slightly negative BR (magnetic field radial component) at Z>
0.0 m) for the spiral muon injection from the iron yoke at top., Elsevier B.V.
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 11 May 2018, [Reviewed] - Three-dimensional spiral injection scheme for the g−2/EDM experiment at J-PARC
Hiromi Iinuma; Hisayoshi Nakayama; Katsunobu Oide; Ken-Ichi Sasaki; Naohito Saito; Tsutomu Mibe; Mitsushi Abe, A newly developed three-dimensional spiral injection scheme for beam insertion into a solenoidal storage ring is reported. A new planned muon g−2/EDM experiment at J-PARC aims to measure g−2 to a factor of 5 better statistical precision and a factor of 100 better sensitivity for the electric dipole moment (EDM) measurement compared to previous experiments. The J-PARC experiment will use a 3-T MRI solenoid magnet as the muon storage ring with a 0.66 m diameter to achieve a 1-ppm level of local uniformity. The previous g−2 injection scheme is not applicable for beam injection into a small ring. The new scheme provides a smooth injection utilizing a radial solenoidal fringe field, without causing an error field in the storage volume. The expected storage efficiency is 80% and over, which is to be compared to 3.5% for the previous g−2 experiment. In addition, the ability to control the storage plane is important for the EDM measurement. In this paper, we introduce the conceptual design and required beam parameters in terms of Twiss functions and the expected injection efficiency., Elsevier B.V.
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 01 Oct. 2016, [Reviewed] - Accelerator design at SuperKEKB
Yukiyoshi Ohnishi; Tetsuo Abe; Toshikazu Adachi; Kazunori Akai; Yasushi Arimoto; Kiyokazu Ebihara; Kazumi Egawa; John Flanagan; Hitoshi Fukuma; Yoshihiro Funakoshi, Oxford University Press (OUP)
Prog.Theor.Exp.Phys (PTEP), 26 Mar. 2016, [Reviewed] - Charged-pion cross sections and double-helicity asymmetries in polarized p+p collisions at √s =200 GeV
PHENIX Collaboration (A. Adare (Colorado U.) et al.), We present midrapidity charged-pion invariant cross sections, the ratio of the pi(-) to pi(+) cross sections and the charge-separated double-spin asymmetries in polarized p + p collisions at root s = p + 200 GeV. While the cross section measurements are consistent within the errors of next-to-leading-order (NLO) perturbative quantum chromodynamics predictions (pQCD), the same calculations overestimate the ratio of the charged-pion cross sections. This discrepancy arises from the cancellation of the substantial systematic errors associated with the NLO-pQCD predictions in the ratio and highlights the constraints these data will place on flavor-dependent pion fragmentation functions. The charge-separated pion asymmetries presented here sample an x range of similar to 0.03-0.16 and provide unique information on the sign of the gluon-helicity distribution., AMER PHYSICAL SOC
Phys.Rev. D, 05 Sep. 2014, [Reviewed] - Inclusive double-helicity asymmetries in neutral-pion and eta-meson production in p⃗+p⃗ collisions at √s=200 GeV
PHENIX Collaboration (A. Adare (Colorado U.) et al., Results are presented from data recorded in 2009 by the PHENIX experiment at the Relativistic Heavy Ion Collider for the double-longitudinal spin asymmetry, A(LL), for pi(0) and eta production in root s = 200 GeV polarized p + p collisions. Comparison of the pi(0) results with different theory expectations based on fits of other published data showed a preference for small positive values of gluon polarization, Delta G, in the proton in the probed Bjorken x range. The effect of adding the new 2009 pi(0) data to a recent global analysis of polarized scattering data is also shown, resulting in a best fit Delta G(DSSV)([0.05,0.2]) = 0.06(-0.15)(+0.11) in the range 0.05 < x < 0.2, with the uncertainty at Delta chi(2) = 9 when considering only statistical experimental uncertainties. Shifting the PHENIX data points by their systematic uncertainty leads to a variation of the best-fit value of Delta G(DSSV)([0.05,0.2]) between 0.02 and 0.12, demonstrating the need for full treatment of the experimental systematic uncertainties in future global analyses., AMER PHYSICAL SOC
Phys.Rev. D, 17 Jul. 2014, [Reviewed] - Trigger electronics upgrade of PHENIX muon tracker
S. Adachi; T. Akiyama; K. Aoki; H. Asano; S. Ebesu; Y. Fukao; Y. Haki; M. Hata; Y. Ichikawa; H. Iinuma; Y. Ikeda; M. Ikeno; K. Imai; Y. Imazu; K. Karatsu; M. Kasai; H. Kawamura; E. Kim; K. Kurita; T. Mibe; T. Murakami; J. Murata; I. Nakagawa; K. R. Nakamura; R. Nakanishi; K. Ninomiya; M. Nitta; N. Ogawa; J. Onishi; S. Park; Y. Sada; N. Saito; R. Sameshima; O. Sasaki; A. Sato; E. Seitaibashi; K. Senzaka; K. Shoji; A. Taketani; K. Tanida; T. Toyoda; K. Watanabe, The Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL) offers the unique capability to collide polarized protons at high energies. One of the highlights of the polarized proton program performed at s=500GeV is that it affords the direct measurement of sea quark contribution to the proton spin via W-boson production through the measurement of the parity violating single spin asymmetry. A new trigger electronics system for forward muons, which is especially capable of W-boson detection, was developed for the PHENIX experiment. The trigger was installed as an additional electronic circuit, and it was connected in parallel with the existing cathode readout electronics of the muon tracking chamber. © 2012 Elsevier B.V. All rights reserved.
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2013, [Reviewed] - Measurement of muonium emission from silica aerogel
P. Bakule; G. A. Beer; D. Contreras; M. Esashi; Y. Fujiwara; Y. Fukao; S. Hirota; H. Iinuma; K. Ishida; M. Iwasaki; T. Kakurai; S. Kanda; H. Kawai; N. Kawamura; G. M. Marshall; H. Masuda; Y. Matsuda; T. Mibe; Y. Miyake; S. Okada; K. Olchanski; A. Olin; H. Onishi; N. Saito; K. Shimomura; P. Strasser; M. Tabata; D. Tomono; K. Ueno; K. Yokoyama; S. Yoshida, Emission of muonium (μ +e-) atoms from silica aerogel into vacuum was observed. Characteristics of muonium emission were established from silica aerogel samples with densities in the range from 29 mg cm-3to 178 mg cm-3. Spectra of muonium decay times correlated with distances from the aerogel surfaces, which are sensitive to the speed distributions, and follow general features expected from a diffusion process, while small deviations from a simple roomtemperature thermal diffusion model are identified. The parameters of the diffusion process are deduced from the observed yields. © The Author(s) 2013.
Progress of Theoretical and Experimental Physics, 2013, [Reviewed] - Magnet System for the SuperKEKB Main Ring
H. Iinuma; K. Egawa; M. Masuzawa, Corresponding, The next-generation B-factory "SuperKEKB" is now under construction. To achieve a 40-times higher luminosity than KEKB, which held the world's record luminosity of 2.1 × 10 34 cm -2s -1, many items are being upgrade, and new challenges for the "nano-beam" scheme are being undertaken. In this paper, we introduce the major efforts of the magnet system in the main rings. © 2011 IEEE.
IEEE Trans.Appl.Supercond, 10 Dec. 2012, [Reviewed] - Development of a Superconducting Solenoid for Hyperfine Structure Measurement of Muonium at the J-PARC
Ken-ichi Sasaki; Michinaka Sugano; Ryuji Ohkubo; Hiromi Iinuma; Toru Ogitsu; Naohito Saito; Koichiro Shimomura; Akira Yamamoto, A superconducting solenoid for a new Muonium HyperFine Structure, MuHFS, measurement at J-PARC is being developed. High homogeneity of magnetic field below 1 ppm is required for this experiment. Superconducting main coils were designed and error fields caused by the main coil misalignment were evaluated for designing superconducting shim coils. The coil deformation by the coil winding, thermal contraction and hoop stress due to the magnetic force was also estimated. Quench protection study was performed to determine the parameters of superconducting strand., IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, Jun. 2012, [Reviewed] - Gluon-spin contribution to the proton spin from the double helicity asymmetry in inclusive pi0 production in polarized p + p collisions at sqrt(s) = 200-GeV
PHENIX Collaboration (A. Adare (Colorado U.) et al.), The double helicity asymmetry in neutral pion production for p(T) = 1 to 12 GeV/c was measured with the PHENIX experiment to access the gluon-spin contribution, Delta G, to the proton spin. Measured asymmetries are consistent with zero, and at a theory scale of mu 2 = 4 GeV2 a next to leading order QCD analysis gives Delta G([0.02,0.3]) = 0.2, with a constraint of -0.7 < Delta G([0.02,0.3]) < 0.5 at Delta chi(2) = 9 (similar to 3 sigma) for the sampled gluon momentum fraction (x) range, 0.02 to 0.3. The results are obtained using predictions for the measured asymmetries generated from four representative fits to polarized deep inelastic scattering data. We also consider the dependence of the Delta G constraint on the choice of the theoretical scale, a dominant uncertainty in these predictions., AMER PHYSICAL SOC
Phys.Rev.Lett., 01 Jul. 2009, [Reviewed] - Measurements of single and double spin asymmetry in pp elastic scattering in the CNI region with a polarized atomic hydrogen gas jet target
I.G. Alekseev (Moscow; ITEP); A. Bravar (Brookhaven); G. Bunce (Brookhaven & RIKEN BNL); S. Dhawan (Yale U.); K.O. Eyser (UC; Riverside); R. Gill (Brookhaven); W. Haeberli (Wisconsin U.; Madison); H. Huang (Brookhaven); O. Jinnouchi (RIKEN BNL); A. Kponou (Brookhaven); H.Okada(IINUMA); et al., Corresponding, Precise measurements of the single spin asymmetry AN, and the double spin asymmetry ANN, in proton proton (pp) elastic scattering in the region of four-momentum transfer squared 0.001 < -t < 0.032 (GeV/c)^2 have been performed using a polarized atomic hydrogen gas jet target and the,Relativistic Heavy Ion Collider (RHIC) polarized proton beam. We present measurements of AN and ANN at center-of-mass energies sqrt(s)=6.8 and 13.7 GeV., AMER PHYSICAL SOC
Phys.Rev. D, 13 May 2009, [Reviewed] - Search for the H-dibaryon resonance in C-12 (K-, K+ Lambda Lambda X)
C.J. Yoon; H. Akikawa; K. Aoki; Y. Fukao; H. Funahashi; M. Hayata; K. Imai; K. Miwa; H. Okada; N. Saito, The H-dibaryon resonance was sought by a Lambda Lambda invariant mass spectrum that was obtained by the C-12 (K-,K+Lambda Lambda X) reactions. We observed a bump near the Lambda Lambda threshold, as reported by the previous experiment (KEK E224), with better statistics. Data were compared with results of a cascade model calculation including Lambda Lambda final state interactions consistent with the newly measured binding energy of He-6(Lambda Lambda). No significant enhancements above levels of the model predictions were observed. The resulting upper limit for the production cross section of the H with a mass range between the Lambda Lambda and Xi N threshold is found to be 2.1 +/- 0.6 (stat.) +/- 0.1 (syst.) mu b/sr at a 90% confidence level., AMERICAN PHYSICAL SOC
Phys.Rev. C, 13 Feb. 2007, [Reviewed] - Measurement of the analyzing power A(N) in pp elastic scattering in the CNI region with a polarized atomic hydrogen gas jet target
H. Okada; I. G. Alekseev; A. Bravar; G. Bunce; S. Dhawan; R. Gill; W. Haeberli; O. Jinnouchi; A. Khodinov; Y. Makdisi; A. Nass; N. Saito; E. J. Stephenson; D. N. Svirida; T. Wise; A. Zelenski, A precise measurement of the analyzing power A(N) in proton-proton elastic scattering in the region of 4-momentum transfer squared 0.001 < vertical bar t vertical bar < 0.032 (GeV/c)(2) has been performed using a polarized atomic hydrogen gas jet target and the 100 GeV/c RHIC proton beam. The interference of the electromagnetic spin-flip amplitude with a hadronic spin-nonflip amplitude is predicted to generate a significant A(N) of 4-5%, peaking at -t similar or equal to 0.003 (GeV/c)(2). This kinematic region is known as the Coulomb nuclear interference region. A possible hadronic spin-flip amplitude modifies this calculable prediction. We present the first precise result of the CNI asymmetry and shape as a function of t. Our data are well described by the CNI prediction with the electromagnetic spin-flip alone and do not support the presence of a large hadronic spin-flip amplitude. (c) 2006 Elsevier B.V. All rights reserved., ELSEVIER SCIENCE BV
PHYSICS LETTERS B, Jul. 2006, [Reviewed] - Polarized proton collisions at 205 GeV at RHIC
M Bai; T Roser; L Ahrens; IG Alekseev; J Alessi; J Beebe-Wang; M Blaskiewicz; A Bravar; JM Brennan; D Bruno; G Bunce; E Courant; A Drees; W Fischer; C Gardner; R Gill; J Glenn; W Haeberli; H Huang; O Jinnouchi; J Kewisch; A Luccio; Y Luo; Nakagawa, I; H Okada; F Pilat; WW MacKay; Y Makdisi; C Montag; Ptitsyn, V; T Satogata; E Stephenson; D Svirida; S Tepikian; D Trbojevic; N Tsoupas; T Wise; A Zelenski; K Zeno; SY Zhang, The Brookhaven Relativistic Heavy Ion Collider (RHIC) has been providing collisions of polarized protons at a beam energy of 100 GeV since 2001. Equipped with two full Siberian snakes in each ring, polarization is preserved during acceleration from injection to 100 GeV. However, the intrinsic spin resonances beyond 100 GeV are about a factor of 2 stronger than those below 100 GeV making it important to examine the impact of these strong intrinsic spin resonances on polarization survival and the tolerance for vertical orbit distortions. Polarized protons were first accelerated to the record energy of 205 GeV in RHIC with a significant polarization measured at top energy in 2005. This Letter presents the results and discusses the sensitivity of the polarization survival to orbit distortions., AMERICAN PHYSICAL SOC
PHYSICAL REVIEW LETTERS, May 2006, [Reviewed] - Double helicity asymmetry in inclusive midrapidity pi(0) production for polarized p+p collisions at root s=200 GeV
SS Adler; S Afanasiev; C Aidala; NN Ajitanand; Y Akiba; A Al-Jamel; J Alexander; K Aoki; L Aphecetche; R Armendariz; SH Aronson; R Averbeck; TC Awes; Babintsev, V; A Baldisseri; KN Barish; PD Barnes; B Bassalleck; S Bathe; S Batsouli; Baublis, V; F Bauer; A Bazilevsky; S Belikov; MT Bjorndal; JG Boissevain; H Borel; ML Brooks; DS Brown; N Bruner; D Bucher; H Buesching; Bumazhnov, V; G Bunce; JM Burward-Hoy; S Butsyk; Camard, X; P Chand; WC Chang; S Chernichenko; CY Chi; J Chiba; M Chiu; IJ Choi; RK Choudhury; T Chujo; Cianciolo, V; Y Cobigo; BA Cole; MP Comets; P Constantin; M Csanad; T Csorgo; JP Cussonneau; D d'Enterria; K Das; G David; F Deak; H Delagrange; A Denisov; A Deshpande; EJ Desmond; A Devismes; O Dietzsch; JL Drachenberg; O Drapier; A Drees; A Durum; D Dutta; Dzhordzhadze, V; YV Efremenko; H En'yo; B Espagnon; S Esumi; DE Fields; C Finck; F Fleuret; SL Fokin; BD Fox; Z Fraenkel; JE Frantz; A Franz; AD Frawley; Y Fukao; SY Fung; S Gadrat; M Germain; A Glenn; M Gonin; J Gosset; Y Goto; RG de Cassagnac; N Grau; SV Greene; MG Perdekamp; HA Gustafsson; T Hachiya; JS Haggerty; H Hamagaki; AG Hansen; EP Hartouni; M Harvey; K Hasuko; R Hayano; He, X; M Heffner; TK Hemmick; JM Heuser; P Hidas; H Hiejima; JC Hill; R Hobbs; W Holzmann; K Homma; B Hong; A Hoover; T Horaguchi; T Ichihara; VV Ikonnikov; K Imai; M Inaba; M Inuzuka; D Isenhower; L Isenhower; M Ishihara; M Issah; A Isupov; BV Jacak; J Jia; O Jinnouchi; BM Johnson; SC Johnson; KS Joo; D Jouan; F Kajihara; S Kametani; N Kamihara; M Kaneta; JH Kang; K Katou; T Kawabata; A Kazantsev; S Kelly; B Khachaturov; A Khanzadeev; J Kikuchi; DJ Kim; E Kim; GB Kim; HJ Kim; E Kinney; A Kiss; E Kistenev; A Kiyomichi; C Klein-Boesing; H Kobayashi; Kochetkov, V; R Kohara; B Komkov; M Konno; D Kotchetkov; A Kozlov; PJ Kroon; CH Kuberg; GJ Kunde; K Kurita; MJ Kweon; Y Kwon; GS Kyle; R Lacey; JG Lajoie; Y Le Bornec; A Lebedev; S Leckey; DM Lee; MJ Leitch; MAL Leite; Li, X; XH Li; H Lim; A Litvinenko; MX Liu; CF Maguire; YI Makdisi; A Malakhov; Manko, VI; Y Mao; G Martinez; H Masui; F Matathias; T Matsumoto; MC McCain; PL McGaughey; Y Miake; TE Miller; A Milov; S Mioduszewski; GC Mishra; JT Mitchell; AK Mohanty; DP Morrison; JM Moss; D Mukhopadhyay; M Muniruzzaman; S Nagamiya; JL Nagle; T Nakamura; J Newby; AS Nyanin; J Nystrand; E O'Brien; CA Ogilvie; H Ohnishi; ID Ojha; H Okada; K Okada; A Oskarsson; Otterlund, I; K Oyama; K Ozawa; D Pal; APT Palounek; Pantuev, V; Papavassiliou, V; J Park; WJ Park; SF Pate; H Pei; Penev, V; JC Peng; H Pereira; Peresedov, V; A Pierson; C Pinkenburg; RP Pisani; ML Purschke; AK Purwar; J Qualls; J Rak; Ravinovich, I; KF Read; M Reuter; K Reygers; Riabov, V; Y Riabov; G Roche; A Romana; M Rosati; S Rosendahl; P Rosnet; VL Rykov; SS Ryu; N Saito; T Sakaguchi; S Sakai; Samsonov, V; L Sanfratello; R Santo; HD Sato; S Sato; S Sawada; Y Schutz; Semenov, V; R Seto; TK Shea; Shein, I; TA Shibata; K Shigaki; M Shimomura; A Sickles; CL Silva; D Silvermyr; KS Sim; A Soldatov; RA Soltz; WE Sondheim; S Sorensen; Sourikova, IV; F Staley; PW Stankus; E Stenlund; M Stepanov; A Ster; SP Stoll; T Sugitate; JP Sullivan; S Takagi; EM Takagui; A Taketani; KH Tanaka; Y Tanaka; K Tanida; MJ Tannenbaum; A Taranenko; P Tarjan; TL Thomas; M Togawa; J Tojo; H Torii; RS Towell; VN Tram; Tserruya, I; Y Tsuchimoto; H Tydesjo; N Tyurin; TJ Uam; HW van Hecke; J Velkovska; M Velkovsky; Veszpremi, V; AA Vinogradov; MA Volkov; E Vznuzdaev; XR Wang; Y Watanabe; SN White; N Willis; FK Wohn; CL Woody; W Xie; A Yanovich; S Yokkaichi; GR Young; IE Yushmanov; WA Zajc; O Zaudtke; C Zhang; S Zhou; J Zimanyi; L Zolin; Zong, X, We present a measurement of the double longitudinal spin asymmetry in inclusive pi(0) production in polarized proton-proton collisions at roots=200 GeV. The data were taken at the Relativistic Heavy Ion Collider with average beam polarizations of 0.27. The measurements are the first in a program to study the longitudinal spin structure of the proton, using strongly interacting probes, at collider energies. The asymmetry is presented for transverse momenta 1-5 GeV/c at midrapidity, where next-to-leading-order perturbative quantum chromodynamic (NLO pQCD) calculations well describe the unpolarized cross section. The observed asymmetry is small and is compared to a NLO pQCD calculation with a range of polarized gluon distributions., AMER PHYSICAL SOC
PHYSICAL REVIEW LETTERS, Nov. 2004, [Reviewed]
Lectures, oral presentations, etc.
- Challenging quest of three-dimensional spiral injection scheme to store the 80 keV electron beam in 12 cm diameter ring
13th Workshop on Accelerator Operations （WAO2023), 13 Sep. 2023, KEK, QST
20230910, 20230915 - J-PARC Muon g-2/EDM実験用 ビーム蓄積磁石内部の強いX-Y結合をもつビーム位相空間調整装置の仕様と設計検討
飯沼裕美
第20回日本加速器学会年会, 31 Aug. 2023, 日本加速器学会
20230829, 20230901 - -PARC muon g-2/EDM実験における精密な三次元ビーム入射のための蓄積ビームモニター
小川真治
第20回日本加速器学会年会, 31 Aug. 2023, 日本加速器学会
20230829, 20230901 - 〔Major achievements〕Status of J-PARC Muon g-2/EDM experiment
Hiromi Iinuma
International Conference o the Physics of the Two Infinities, 29 Mar. 2023, International Laboratory for Astrophysics, Neutrino and Cosmology Experiments
20230327, 20230330 - J-PARC muon g-2/EDM実験のためのビーム輸送ラインのロバスト性の高いビーム調整手法の検討
飯沼 裕美
日本物理学会 2023年春季大会, 25 Mar. 2023, 日本物理学会
20230322, 20230325 - DEMONSTRATION OF THREE-DIMENSIONAL SPIRAL INJECTION FOR J-PARC,MUON g-2/EDM EXPERIMENT
Hiromi Iinuma
PASJ2022, 21 Oct. 2022, 日本加速器学会
20221018, 20221021 - DESIGN WORK OF PULSED RADIAL KICK FIELD FOR J-PARC MUON g-2/EDM,EXPERIMENT
Hiromi Iinuma
PASJ2022, 18 Oct. 2022, 日本加速器学会
20221018, 20221021 - J-PARC muon g-2/EDM実験における3次元らせん入射ビーム用の実機キッカー装置設計とビーム運動評価
飯沼裕美
日本物理学会2022年秋季大会, 06 Sep. 2022
20220906, 20220908 - J-PARC muon g-2/EDM実験のための3次元らせん入射実証実験
松下凌大
日本物理学会2022年秋季大会, 06 Sep. 2022
20220906, 20220908 - J-PARC muon g-2/EDM実験における3次元らせん入射関連磁石の磁気設計
日本物理学会2022年秋季大会, 06 Sep. 2022
20220906, 20220908 - ミューオンスピン歳差運動の超精密測定に向けた研究開発
飯沼裕美
「特色研究加速イニシアティブ」研究計画説明会, 04 Aug. 2021, [Invited]
20220804, 20220804 - J-PARC muon g-2/EDM実験における三次元らせん入射手法の実証実験に向けたキックパラメータの最適化とキッカー装置の性能評価
小田航大; 飯沼裕美; 平山穂香; 阿部充志A; 大澤哲; 齊藤直人; 佐々木憲一; 中山久義; 古川和朗; 三部勉; Muhammad Abdul Rehman; 高柳智弘; 徳地明; 松下凌大
日本物理学会第77回年次大会, 15 Mar. 2022
20220315, 20220319 - J-PARC muon g-2/EDM実験における3次元らせん入射手法実証実験：キッカー装置を用いたビーム蓄積実証実験
松下凌大; 大澤哲; 齊藤直人; 中山久義; 古川和朗; 三部勉; M.A.Rehman; 飯沼裕美; 小田航大; 平山穂香
日本物理学会第77回年次大会, 15 Mar. 2022
20220315, 20220319 - J-PARC muon g-2/EDM実験：ミューオン線形加速器における中エネルギービーム輸送ラインの基礎設計
中沢雄河; 飯沼裕美; 岩田佳之; Cicek Ersin; 惠郷博文; 大谷将士; 河村成肇; 北村遼; 近藤恭弘; 齊藤直人; 須江祐貴; 鷲見一路; 竹内佑甫; 林崎規託; 三部勉; 森下卓俊; 安田浩昌; 山崎高幸; 吉田光宏; 四塚麻衣
日本物理学会第77回年次大会, 15 Mar. 2022
20220315, 20220319 - 〔Major achievements〕J-PARC mon g-2/EDM実験における3次元らせん入射用の実機キッカー装置設計
飯沼裕美; 阿部充; 中山久義; 佐々木憲一; 高柳智弘; 徳地明; 三部勉
日本物理学会第77回年次大会, 15 Mar. 2022
20220315, 20220319 - Effect on temperature dependence for long-term stable control of the magnetic field at sub-ppm using superconducting magnet for MRI
M. Sugita
MT27, 27th International Conference on Magnet Technology, 18 Nov. 2021
20211115, 20211119 - 〔Major achievements〕Design method of active shield coils of steering magnet for fine tuning of muon injection orbit in muon storage magnet of g-2/EDM precision measurement
M. Abe
MT27, 27th International Conference on Magnet Technology, 18 Nov. 2021
20211115, 20211119 - 〔Major achievements〕Development of precise shimming technique with materials having low saturation magnetization
K. Sasaki
MT27, 27th International Conference on Magnet Technology, 18 Nov. 2021, [Invited]
20211115, 20211119 - 〔Major achievements〕Developments of a Pulse Kicker System for the Three-Dimensional Spiral Beam Injection of the J-PARC Muon g-2/EDM Experiment
K. Oda
MT27, 27th International Conference on Magnet Technology, 16 Nov. 2021
20211115, 20211119 - 〔Major achievements〕Control of Rotatable-Quadrupole Magnets Angles for 3-D Spiral Injection Test Experiment
H. Hirayama
MT27, 27th International Conference on Magnet Technology, 16 Nov. 2021
20211115, 20211119 - 〔Major achievements〕Design of a strong X-Y coupling beam transport line for J-PARC muon g-2/EDM experiment
H. Iinuma
MT27, 27th International Conference on Magnet Technology, 16 Nov. 2021
20211115, 20211119 - ミュオンペニングトラップ実験に向けた超低速ミュオン生成過程の評価
足立泰平; 飯沼裕美; 下村浩一郎; 永谷幸則; 仁尾真紀子; 西村昇一郎; A. D. PantA; 樋口嵩
日本物理学会2021年秋季大会, 17 Sep. 2021
20210914, 20210917 - ミュオンペニングトラップによる精密測定実験
西村昇一郎; 足立泰平; 飯沼裕美; 下村浩一郎; 永谷幸則; 仁尾真紀子; A. D. Pant; 樋口嵩
日本物理学会2021年秋季大会, 17 Sep. 2021
20210914, 20210917 - 〔Major achievements〕J-PARC muon g-2/EDM実験における3次元らせん入射手法実証実験：蓄積磁石内でのパルスビーム検出方法の研究開発
松下凌大; 大澤哲; 齊藤直人; 中山久義; 古川和郎; 三部勉; M.A.Rehman; 飯沼裕美; 小田航大; 平山穂香
日本物理学会2021年秋季大会, 16 Sep. 2021
20210914, 20210917 - 〔Major achievements〕Muon g-2/EDM 精密計測用蓄積磁石へのビーム入射輸送ライン設計の最新化
飯沼裕美; 阿部充志; 大沢哲; 小田航大; 佐々木憲一; 齊藤直人; 中山久義; 古川 和朗; 松下凌大; 三部勉; 平山穂香; リーマン ムハマド アブドゥル
日本物理学会2021年秋季大会, 16 Sep. 2021
20210914, 20210917 - 〔Major achievements〕UPDATE AND DETAIL DESIGN OF BEAM TRANSPORT LINE FOR MUON G-2/EDM,EXPERIMENT AT J-PARC
飯沼 裕美; 阿部 充志,大澤 哲,小田 航大,佐々木 憲一 ,齊藤 直人,中山 久義、古川 和朗,平山 穂香,松下 凌大 ,三部 勉,Rehman Muhammad Abdul
第18回日本加速器学会年会, 09 Aug. 2021
20210809, 20210812 - UPDATED MAGNETIC DESIGN OF MUON STORAGE MAGNET FOR G-2/EDM,PRECISION MEASUREMENTS
阿部充志,萩津透,齊藤直人,佐々木憲一,三部勉,中山久義; 飯沼裕美
第18回日本加速器学会年会, 09 Aug. 2021
20210809, 20210812 - CONTROL OF ROTATION ANGLES OF TRANSPORT LINE,QUADRUPOLE MAGNETS IN A DEMONSTRATION EXPERIMENT,OF THREE-DIMENSIONAL SPIRAL BEAM INJECTION
平山穂香; 飯沼裕美; Muhammad Abdul Rehman; 大澤哲; 染谷宏彦; 中山久義; 古川和朗; 三部勉
第18回日本加速器学会年会, 09 Aug. 2021
20210809, 20210812 - J-PARC muon g-2/EDM実験のための3次元螺旋ビーム入射の技術開発概要と実証実験
飯沼裕美; 小田航大; 佐藤優太郎; 杉田萌; 平山穂香; 阿部充志; 大澤哲; 齊藤直人; 佐々木憲一; 中山久義; 古川和朗; 三部勉; Muhammad Abdul Rehman; 松下凌大
日本物理学会第76回年次大会, 12 Mar. 2021
20210312, 20210315 - J-PARC muon g-2/EDM実験における三次元らせん入射のためのキッカー装置の研究開発
小田航大; 飯沼裕美; 佐藤優太郎; 杉田萌; 平山穂香; 阿部充志A; 大澤哲; 齊藤直人; 佐々木憲一; 中山久義; 古川和朗; 三部勉; Muhammad Abdul Rehman; 松下凌大
日本物理学会第76回年次大会, 12 Mar. 2021
20210312, 20210315 - J-PARC gμ-2/μEDM実験のためのビーム入射手法実証実験：パルスビームの生成・検出方法の研究開発
松下凌大; 阿部充志; 大澤哲; 齊藤直人; 佐々木憲一; 中山久義; 古川和朗; 三部勉; Muhammad Abdul Rehman; 飯沼裕美; 小田航大; 佐藤優太郎; 杉田萌; 平山穂香
日本物理学会第76回年次大会, 12 Mar. 2021
20210312, 20210315 - J-PARC muon g-2/EDM実験の3次元螺旋入射軌道微調整用の能動磁気遮蔽型ステアリング磁石設計
阿部充志; 萩津透; 齊藤直人; 佐々木憲一; 三部勉; 中山久義A; 飯沼裕美
日本物理学会第76回年次大会, 12 Mar. 2021
20210312, 20210315 - ミューオン線形加速器APF方式IH-DTLの開発状況
中沢雄河; 飯沼裕美; 岩田佳之; Cicek Ersin; 大谷将士; 河村成肇; 北村遼; 近藤恭弘; 齊藤直人; 須江祐貴; 鷲見一路; 竹内佑甫; 林崎規託; 三部勉; 森下卓俊; 安田浩昌; 山崎高幸; 吉田光宏; 四塚麻衣
日本物理学会第76回年次大会, 12 Mar. 2021
20210312, 20210315 - Design works of the 3-D Spiral injection beam for the muon g-2 and EDM experiment at J-PARC
H. Iinuma
10th Aniversary J-PARC Symposium 2019, 23 Sep. 2019, J-PARC - J-PARCミューオンg-2/EDM実験のための垂直ビームキッカー装置の概念設計とテストベンチ作業準備
平山 穂香
第16回日本加速器学会年会, 31 Jul. 2019, 日本加速器学会 - J-PARC ミューオンg-2/EDM実験のための高度のX-Y結合を生成するビーム輸送ライン設計
飯沼裕美
第16回日本加速器学会, 31 Jul. 2019, 日本加速器学会 - Development of Inter-Digital H-Mode Drift-Tube Linac Prototype with Alternative Phase Focusing for a Muon Linac in the J-PARC Muon G-2/EDM Experiment
Yuga Nakazawa
International Particle Accelerator Conference (IPAC'19), 19 May 2019 - BEAM CONTROL AND MONITORS FOR THE SPIRAL INJECTION TESTEXPERIMENT
M. A. Rehman; H. Iinuma; S. Ohsawa; H. Nakayama; K. Furukawa; T. Mibe; H. Hisamatsu
10th Int. Particle Accelerator Conference (IPAC2019), 19 May 2019 - Test experiment for 3-D spiral beam injection
飯沼裕美; 中山久義; 大澤哲; 深尾祥紀; 三部勉; 佐々木憲一; 阿部充志; 古川和朗; 、Muhammad Abdul Rehman
2017年度量子ビームサイエンスフェスタ, 02 Mar. 2018, 高エネルギー加速器研究機構、J-PARCセンター、CROSS, [Invited] - Test experiment for negative Muonium acceleration by RFQ
Y. Nakazawa; Y. Kondo; M. Otani; R.Kitamura; H. Iinuma; Y. Sue; T. Mibe; T. Yamazaki; N. Kawamura; N. Saito
2nd International Symposium of Quantum Beam Science at Ibaraki University, 08 Dec. 2017 - Three-dimentional spiral beam injection for a compact storage ring
H. Iinuma; R. Abudul; K. Furukawa; Y. Fukao; H. Hisamatsu; T. Mibe; H. Nakayama; S Ohsawa; K. Oide and K. SASAKI
2nd International Symposium of Quantum Beam Science at Ibaraki University, 08 Dec. 2017 - Development for beam control procedure for all-in-one injection and storage ring magnets
H. Iinuma; H. Nakayama; K. Sasaki; T. Mibe; M. Abe
The 14th Annual Meeting of Particle Accelerator Society Japan 2017 Aug1-3, 01 Aug. 2017, 日本加速器科学会 - Design method for a magnet of muon g-2/EDM storage and high precision measurement
M. Abe; Y. Murata; H. Iinuma; T. Ogitsu; N. Saito; K. Sasaki; T. Mibe; H. Nakayama
The 14th Annual Meeting of Particle Accelerator Society Japan, 01 Aug. 2017 - Development of three-dimensional spiral injection by using electron beam for muon g - 2/EDM experiment
M. A. Rehman; H. Iinuma; S. Ohsawa; H. Nakayama; H. Hisamatsu; K. Furukawa; T. Mibe
The 14th Annual Meeting of Particle Accelerator Society Japan, 01 Aug. 2017 - Preparation status and prospects of the muon acceleration with RFQ in J-PARC
R. Kitamura; M. Otani; Y. Kondo; S. Bae; S Choi; Y. Fukao; K. Futatsukawa; K. Hasegawa; H. Iinuma; K. Ishida; N. Kawamura; B. Kim; T. Mibe; Y. Miyake; T. Morishita; G. Razuvaev; N. Saito; K. Shimomura; P. Strasser
The 14th Annual Meeting of Particle Accelerator Society Japan, 01 Aug. 2017 - Development for beam control procedure for all-in-one injection and storage ,ring magnets
H. Iinuma; H. Nakayama; K. Sasaki; T. Mibe; M. Abe
The 14th Annual Meeting of Particle Accelerator Society Japan 2017 Aug1-3, 01 Aug. 2017, 日本加速器科学会 - Prospect for new muon g-2/EDM experiments
H. Iinuma
The international workshop on future potential of high intensity accelerator for particle and nuclear physics (HINT2016), 07 Dec. 2016, KEK, [Invited] - Introduction to Spin Physics
H. Iinuma
Japanese-German Frontiers of Science Symposium, 03 Oct. 2015, Alexander von Humbolt Stiftung/Foundation and Japan Society for the promotion of science, [Invited] - 26aGF-1 ミューオンg-2/EDM実験のためのミューオンビーム貯蔵リング内軌道の精密制御方法の確立(26aGF ミューオン・ニュートリノ検出器・ビームライン,素粒子実験領域)
飯沼 裕美; 荻津 透; 齊藤 直人; 佐々木 憲一; 田中 賢一; 中山 久義; 三部 勉; J・PARCミューオンg; EDM実験コラボレーション
日本物理学会講演概要集, 03 Mar. 2011, 一般社団法人日本物理学会 - New approach to the muon g-2 and EDM experiment at J-PARC
H. Iinuma
19th International Symposium, SPIN 2010, 02 Oct. 2010 - 11aSA-8 J-PARC新ミューオンg-2/EDM精密測定用におけるミューオンビームの超精密貯蔵リングへの入射軌道およびスピン解析(11aSA B/ミューオンの物理・計画,素粒子実験領域)
飯沼 裕美; 荻津 透; 齊藤 直人; 佐々木 憲一; 菅原 龍平; 田中 賢一; 中山 久義; 増澤 美佳; 三部 勉; J-PARCミューオンg; EDM実験コラボレーション
日本物理学会講演概要集, 18 Aug. 2010, 一般社団法人日本物理学会 - 22pBE-6 ミューオンg-2/EDM精密測定用の貯蔵リング磁石設計(22pBE ビームライン,素粒子実験領域)
飯沼 裕美
日本物理学会講演概要集, 01 Mar. 2010, 一般社団法人日本物理学会 - 21aBX-7 陽子陽子弾性散乱におけるシングルおよびダブル偏極非対称度の測定(21aBX 理論核物理領域,実験核物理領域合同講演 若手奨励賞受賞記念講演,理論核物理領域)
飯沼 裕美
日本物理学会講演概要集, 01 Mar. 2010, 一般社団法人日本物理学会, [Invited] - New g-2 experiment at J-Parc
H. Iinuma
Advanced Studies Institute Symmetries And Spin (SPIN-Praha-2009), 02 Aug. 2009, [Invited] - Absolute polarimetry at RHIC
H. Iinuma
POLARIZED ION SOURCES, TARGETS AND POLARIMETRY ‐ PSTP2007: 12th International Workshop, 10 Sep. 2007, [Invited] - Transverse polarization results.
H. Iinuma
2007 RHIC & AGS Users' Meeting, 18 Jun. 2007, [Invited] - Measurements of single and double spin asymmetry in pp elastic scattering in the CNI region with polarized hydrogen gas jet target
H. Iinuma
The 17th International Symposium on Spin Physics (SPIN2006), 02 Oct. 2006 - Measurement of the transverse-spin asymmetries in pp elastic scattering in the peak CNI region at RHIC.
H. Iinuma
Second Joint Meeting of the Nuclear Physics Divisions of APS and JPS (HAW05)., 18 Sep. 2005 - Measurement of the analyzing power of proton-carbon elastic scattering in the CNI region at RHIC
H. Iinuma
16th Internatioal Spin Physics Symposium, 10 Oct. 2004
Affiliated academic society
Research Themes
- ミュオン異常磁気能率・電気双極子能率の超精密測定
特別推進
Jul. 2020 - Mar. 2026 - 電磁トラップを利用したミュー粒子の質量と磁気モーメントの精密測定と新物理探索
基盤研究 （Ｓ）
High Energy Accelerator Research Organization
Aug. 2020 - Mar. 2025 - ミューオンｇ-2・EDMの同時測定に向けた、3次元螺旋ビーム入射の精密制御の確立
基盤研究Ａ
Apr. 2019 - Mar. 2023 - ペニングトラップを用いたミューオン精密測定手法の開発
挑戦的研究（萌芽）
Jun. 2019 - Mar. 2021 - ミューオン異常磁気能率の精密測定にむけたミューオン線型加速器低速部の実現
基盤研究(A)
Apr. 2018 - Mar. 2021 - Demonstration experiment for three dimensional spiral injection into the solenoid type storage magnet
基盤研究(B)
Apr. 2014 - Mar. 2018 - Development for pulsed magnetic field device for three dimensional spiral beam injection
若手研究(B)
Apr. 2011 - Mar. 2014
Social Contribution Activities
Academic Contribution Activities
