Exploring Supersymmetric Grand Unified Theories by Rare Muon Decay Search Experiment MEG

2009 Fiscal Year Final Research Report

• Project/Area Number: 16081205
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: The University of Tokyo
• Principal Investigator: MORI Toshinori The University of Tokyo, 素粒子物理国際研究センター, 教授 (90220011)
• Co-Investigator(Kenkyū-buntansha): OOTANI Wataru 東京大学, 素粒子物理国際研究センター, 准教授 (30311335) ; IWAMOTO Toshiyuki 東京大学, 素粒子物理国際研究センター, 助教 (20376700)
• Co-Investigator(Renkei-kenkyūsha): MAKI Akihiro 高エネルギー加速器研究機構, 素粒子原子核研究所, 名誉教授 (40044755) ; HARUYAMA Tomiyoshi 高エネルギー加速器研究機構, 素粒子原子核研究所, 教授 (90181031) ; MIHARA Satoshi 高エネルギー加速器研究機構, 素粒子原子核研究所, 准教授 (80292837) ; NISHIGUCHI Hajime 高エネルギー加速器研究機構, 素粒子原子核研究所, 助教 (10534810) ; TERASAWA Kazuhiro 慶應義塾大学, 医学部, 助教 (10329138) ; SAWADA Ryu 東京大学, 素粒子物理国際研究センター, 特任研究員 (00541947)
• Project Period (FY): 2004 – 2009
• Keywords: 素粒子実験 / 国際協力 / ミュー粒子 / 超対称性 / 大統一理論

Research Abstract

With the unprecedentedly high performance particle detectors, we achieved world's highest experimental sensitivity and searched for rare muon decays which are expected to occur by Supersymmetric Grand Unified Theories and neutrino oscillations. Although they were not yet discovered, most stringent experimental test of the new particle theories will be possible by continuing the experiment and taking more data.

Research Products

• [Journal Article] Lepton Flavour Violating Muon Decay at MEG (2012)
  • Author(s): H.Nishiguchi
  • Journal Title: Heavy Quarks and Leptons 2008 Pages: arXiv:0905
• [Journal Article] A limit for the μ→e γ decay from the MEG experiment (2010)
  • Author(s): T.Mori, S.Mihara, W.Ootani, T.Iwamoto, H.Nishiguchi, T.Haruyama, A.Maki, et al.
  • Journal Title: Nucl.Phys. B834 Pages: 1-12
• [Journal Article] MEG experiment at the Paul Scherrer Insitute (2010)
  • Author(s): S.Mihara
  • Journal Title: Nuclear Physics A844 Pages: 150c-154c
• [Journal Article] Performance of liquid xenon gamma ray detector for MEG, (2010)
  • Author(s): R.Sawada
  • Journal Title: Nucl.Instrum.Meth. A623 Pages: 258-260
• [Journal Article] Gamma ray reconstruction with liquid xenon calorimeter for the MEG experiment (2010)
  • Author(s): Y.Uchiyama
  • Journal Title: Nucl.Instrum.Meth. A617 Pages: 118-119
• [Journal Article] System overview of liquid xenon calorimeter for the MEG experiment (2010)
  • Author(s): T.Iwamoto
  • Journal Title: Nucl.Instrum.Meth. A617 Pages: 92-95
• [Journal Article] μ→eγ-MEG (2009)
  • Author(s): R.Sawada, R.Sawada
  • Journal Title: AIP Conf.Proc. 1182 Pages: 714-717
• [Journal Article] Development of a large volume zero boil-off liquid xenon storage system for muon rare decay experiment (MEG) (2009)
  • Author(s): T.Iwamoto, R.Sawada, T.Haruyama, S.Mihara, T.Doke, Y.Hisamatsu, K.Kasami, A.Maki, T.Mori, H.Natori, H.Nishiguchi, Y.Nishimura, W.Ootani, K.Terasawa, Y.Uchiyama, S.Yamada
  • Journal Title: Cryogenics Vol.49, issue 6 Pages: 254-258
• [Journal Article] Charged Lepton Flavor Violation Experiments (2008)
  • Author(s): W.J.Marciano, T.Mori, J.M.Roney
  • Journal Title: Annual Review of Nuclear and Particle Science 58 Pages: 315-341
• [Journal Article] MEG-The Experiment to Search for μ→eγ (2007)
  • Author(s): T.Mori
  • Journal Title: Nuclear Physics B-Proceedings Supplements 169 Pages: 166-173
• [Journal Article] Development of a Method for LXe Purification Using a Cryogenic Centrifugal Pump (2006)
  • Author(s): S.Mihara, T.Haruyama, T.Iwamoto, Y.Uchiyama, W.Ootani, K.Kasami, R.Sawada, K.Terasawa, T.Doke, H.Natori, H.Nishiguchi, A.Maki, T.Mori, S.Yamada
  • Journal Title: Cryogenics 46 Pages: 688-693
• [Journal Article] Liquid xenon scintillation calorimetry and Xe optical properties (2006)
  • Author(s): Baldini, A., Bemporad, C., Cei, F., Doke, T., Grassi, M., Haruyama, T., Mihara, S., Mori, T., Nicolo, D., Nishiguchi, H., Ootani, W., Ozone, K.,Papa, A., Pazzi, R., Sawada, R., Sergiampietri, F., Signorelli, G., Suzuki, S., Terasawa, K.
  • Journal Title: IEEE Transactions on Dielectrics and Electrical Insulation 13 Pages: 547-555
• [Journal Article] A radioactive point-source lattice for calibrating and monitoring the LXe calorimeter of the MEG experiment (2006)
  • Author(s): A.Baldini, C.Bemporad, F.Ceia, S.Dussoni, F.Gatti, M.Grassi, T.Haruyama, Y.Hisamatsu, T.Iwamoto, S.Mihara, T.Mori, D.Nicolo, H.Nishiguchi, W.Ootani, A.Papa, R.Pazzi, R.Sawada, F.Sergiampietri, G.Signorelli, R.Valle, S.Yamada
  • Journal Title: Nuclear Instruments and Methods in Physics Research A565 Pages: 589-598
• [Journal Article] Absorption of scintillation light in a 100L LXe γ-ray detector and expected detector performance (2005)
  • Author(s): A.Baldini, C.Bemporad, F.Cei, T.Doke, M.Grassi, A.A.Grebenuk, D.N.Grigoriev, T.Haruyama, K.Kasami, J.Kikuchi, A.Maki, T.Mashimo, S.Mihara, T.Mitsuhashi, T.Mori, D.Nicolo, H.Nishiguchi, W.Ootani, K.Ozone, A.Papa, R.Pazzi, S.Ritt, R.Sawada, F.Sergiampietri, G.Signorelli, S.Suzuki, K.Terasawa, M.Yamashita, S.Yamashita, T.Yoshimura, Yu.Yuri
  • Journal Title: Nuclear Instruments and Methods in Physics Research A545 Pages: 753-764
• [Journal Article] Search for the Lepton Flavor Violating Decay μ→ eγ in the MEG Experiment (2005)
  • Author(s): S.Yamada
  • Journal Title: Nuclear Physics B-Proceedings Supplements 144 Pages: 185-188
• [Journal Article] Performance of a Prototype of LXe Scintillation Detector System for PET (2004)
  • Author(s): F.Nishikido, T.Doke, J.Kikuchi, T.Mori, K.Takizawa, M.Yamamoto
  • Journal Title: Japanese Journal of Appllied Physics 43-2 Pages: 779-784
• [Journal Article] Development of a LXe photon detector-towards the search for a muon rare decay mode at PSI (2004)
  • Author(s): S.Mihara, T.Doke, T.Haruyama, K.Kasami, A.Maki, T.Mitsuhashi, T.Mori, H.Nishiguchi, W.Ootani, K.Ozone, R.Sawada, S.Suzuki, K.Terasawa, T.Yoshimura
  • Journal Title: Cryogenics 44 Pages: 223-228
• [Journal Article] R&D work on a liquid-xenon photon detector for MEG experiment at PSI (2004)
  • Author(s): S.Mihara
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section A518 Pages: 45-48
• [Journal Article] Development of a Thin-wall Superconducting Magnet for the Positron Spectrometer in the MEG Experiment (2004)
  • Author(s): W.Ootani, W.Odashima, S.Kimura, T.Kobayashi, Y.Makida, T.Mitsuhashi, S.Mizumaki, R.Ruber, A.Yamamoto
  • Journal Title: IEEE in Transactions on Applied Superconductivity 14 Pages: 568-571
• [Presentation] Analysis of the MEG experiment to search for mu+ ->e+ gamma decays (2010)
  • Author(s): R.Sawada
  • Organizer: 35^<th> International Conference on High Energy Physics
  • Place of Presentation: Paris, France
  • Year and Date: 20100722-20100728
• [Presentation] Performance of the MEG detector to search for mu+ ->e+ gamma decays at PSI (2010)
  • Author(s): T.Iwamoto
  • Organizer: 35th International Conference on High Energy Physics
  • Place of Presentation: Palais des Congres, Paris, France
  • Year and Date: 20100722-20100728
• [Presentation] Performance of the Liquid Xenon Detector for the MEG experiment (2010)
  • Author(s): Y.Nishimura
  • Organizer: 12th Vienna Conference on Instrumentation
  • Place of Presentation: Vienna, Austria
  • Year and Date: 20100215-20100220
• [Presentation] Rare Muon Decays and EDM (2009)
  • Author(s): T.Mori
  • Organizer: XXIV International Symposium on Lepton Photon Interactions at High Energies
  • Place of Presentation: Hamburg, Germany
  • Year and Date: 20090817-20090822
• [Presentation] MEG Experiment at Paul Scherrer Institute (2009)
  • Author(s): S.Mihara
  • Organizer: 4th International Symposium on Symmetries in Subatomic Physics
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 20090602-20090605
• [Presentation] Mu->e gamma-MEG (2009)
  • Author(s): R.Sawada
  • Organizer: 10th Conference on the Intersections of Particle and Nuclear Physics
  • Place of Presentation: California, U.S.
  • Year and Date: 20090526-20090531
• [Presentation] Gamma ray reconstruction with liquid xenon calorimeter for the MEG experiment (2009)
  • Author(s): Y.Uchiyama
  • Organizer: 11th Pisa meeting on advanced detectors
  • Place of Presentation: Isola d'Elba, Italy
  • Year and Date: 20090524-20090530
• [Presentation] System overview of liquid xenon calorimeter for the MEG experiment (2009)
  • Author(s): T.Iwamoto
  • Organizer: 11th Pisa meeting on advanced detectors
  • Place of Presentation: Isola d'Elba, Italy
  • Year and Date: 20090524-20090530
• [Presentation] Performance of liquid xenon gamma ray detector for MEG (2009)
  • Author(s): R.Sawada
  • Organizer: Technology and Instrumentation in Particle Physics 2009 (TIPP09)
  • Place of Presentation: Tsukuba, Japan
  • Year and Date: 2009-03-14
• [Presentation] MEG : Theμ→eγ Experiment (2008)
  • Author(s): T.Mori
  • Organizer: The 4^<th> International Workshop on Nuclear and Particle Physics at J-PARC (NP08)
  • Place of Presentation: Mito Ibaraki Japan
  • Year and Date: 20080300
• [Presentation] Lepton Flavor Violating Muon decay at MEG (2008)
  • Author(s): H.Nishiguchi
  • Organizer: Heavy Quarks and Leptons 2008
  • Place of Presentation: Melbourne, Australia
  • Year and Date: 2008-06-06
• [Presentation] Status of the MEG experiment (2007)
  • Author(s): A.Maki
  • Organizer: NuFact07
  • Place of Presentation: Okayama Japan
  • Year and Date: 20070800
• [Presentation] Performance of a liquid xenon calorimeter cryogenic system for the MEG experiment (2007)
  • Author(s): T.Haruyama
  • Organizer: Cryogenic Engineering Conference and International Cryogenic Material Conference (CEC/ICMC 2007)
  • Place of Presentation: Chattanooga, Tennessee, U.S.A.
  • Year and Date: 20070700
• [Presentation] Lepton Flavor search for Violation in μ→eγ (2007)
  • Author(s): W.Ootani
  • Organizer: Supersymmetry in 2010's
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 20070600
• [Presentation] Liquid Xenon Gamma Ray Detector for MEG (2007)
  • Author(s): R.Sawada
  • Organizer: The 11^<th> Vienna Conference on Instrumentation
  • Place of Presentation: Vienna, Austria, February
  • Year and Date: 20070200
• [Presentation] The MEG Positron Spectormeter (2007)
  • Author(s): H.Nishiguchi
  • Organizer: The 11^<th> Vienna Conference on Instrumentation
  • Place of Presentation: Vienna, Austria
  • Year and Date: 20070200
• [Presentation] Performance of the Liquid Xenon Scintillation Detector for the MEG Experiment (2006)
  • Author(s): W.Ootani
  • Organizer: IEEE NSS/MIC 2006
  • Place of Presentation: San Diego, U.S.A.
  • Year and Date: 20061000-20061100
• [Presentation] The MEG Positron Spectormeter (2006)
  • Author(s): H.Nishiguchi
  • Organizer: The 10^<th> Topical Seminar on Innovative Particle and Radiation Detectors (IPRD06)
  • Place of Presentation: Siena, Italy
  • Year and Date: 20061000
• [Presentation] Liquid Xenon Carlorimetry at the MEG Experiment (2006)
  • Author(s): S.Mihara
  • Organizer: The CHIPP Workshop on Neutrino Physics
  • Place of Presentation: Bern University, Switzerland
  • Year and Date: 20061000
• [Presentation] Liquid Xenon Detector for the MEG Experiment (2006)
  • Author(s): T.Iwamoto
  • Organizer: The 10^<th> Topical Seminar on Innovative Particle and Radiation Detectors (IPRD06)
  • Place of Presentation: Siena, Italy
  • Year and Date: 20061000
• [Presentation] MEG : Search for Lepton Flavor Violation Decay μ→eγ (2006)
  • Author(s): Y.Hisamatsu
  • Organizer: International School of Subnuclear Physics (Erice Summer School 2006)
  • Place of Presentation: Erice-Sicily, Italy
  • Year and Date: 20060800-20060900
• [Presentation] Low Energy Muon Experiments (2006)
  • Author(s): T.Mori
  • Organizer: The Eighth International Workshop on Neutrino Factories, Superbeams and Betabeams
  • Place of Presentation: Irvine, U.S.A.
  • Year and Date: 20060800
• [Presentation] Liquid Xenon Gamma Ray Detector for MEG (2006)
  • Author(s): R.Sawada
  • Organizer: The Eighth International Workshop on Neutrino Factories, Superbeams and Betabeams
  • Place of Presentation: Irvine, U.S.A.
  • Year and Date: 20060800
• [Presentation] Lepton Flavor Violating Decays - Review & Outlook (2006)
  • Author(s): T.Mori
  • Organizer: The Fourth Flavor Physics and CP Violation Conference
  • Place of Presentation: Vancouver, Canada
  • Year and Date: 20060400
• [Presentation] The MEG experiment at PSI : search for LFV Decay μ→eγ (2005)
  • Author(s): R.Sawada
  • Organizer: International Conference "Discoveries of Higgs and Supersymmetry to Pioneer Particle Physics in the 21st Century"
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 20051100
• [Presentation] Lepton Flavour Violation-Status and Prospects (2005)
  • Author(s): T.Mori
  • Organizer: The Workshop on the Interplay of Flavour and Collider Physics "Flavour in the Era of the LHC,"
  • Place of Presentation: Geneva, Switzerland
  • Year and Date: 20051100
• [Presentation] Development of Photomultiplier for MEG liquid xenon gamma ray detector (2005)
  • Author(s): Y.Hisamatsu
  • Organizer: XeSAT 2005
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 20050300
• [Presentation] Performance of the Liquid Xenon Scintillation Detector for the MEG Experiment at PSI (2005)
  • Author(s): W.Ootani
  • Organizer: Applications of Rare Gas Xenon to Science And Technology
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 20050300
• [Presentation] Liquid Xenon Scintillation Detector for the MEG Experiment (2004)
  • Author(s): T.Iwamoto
  • Organizer: IEEE NSS/MIC 2004
  • Place of Presentation: Rome, Italy
  • Year and Date: 20041000
• [Remarks] ホームページ等
  • URL: http://www.icepp.s.u-tokyo.ac.jp/~mori/higgssusy_meg.html
• [Remarks]
  • URL: http://www.icepp.s.u-tokyo.ac.jp/mori/
• [Remarks]
  • URL: http://meg.icepp.s.u-tokyo.ac.jp/