Generation of Universe Baryon Asymmetry and Breaking of Supersymmetry

• Project/Area Number: 19540270
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The University of Tokyo
• Principal Investigator: YANAGIDA Tsutomu The University of Tokyo, 数物連携宇宙研究機構, 特任教授 (10125677)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000); Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2007: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 宇宙のバリオン数生成 / レプトジェネシス機構 / 右巻きニュートリノ / 超対称性 / 超対称性の破れ / 宇宙のバリオン数 / レプトン数生成 / 宇宙の物質数 / Leptogenesis / ニュートリノ / グラビティーノ

Research Abstract

The main purpose of this research project is to construct a supersymmetry breaking model which is consistent with the leptogenesis mechanism explaining the observed universe's matter number. The candidate for the model is a model which predicts garvitino mass smaller than 16 eV. It was extremely important that we observed a new dynamical mechanism for supersymmetry breaking. This new mechanism is based on a vector-like gauge theory and this theory becomes a conformal gauge theory at high energies. Thanks to our observation of the new supersymmetry breaking mechanism, we succeeded to construct a model with the light garvitino.

Research Products

• [Journal Article] Semi-direct Gauge Mediation in Conformal Windows of Vector-like Gauge Theories (2010)
  • Author(s): Tsutomu Yanagida, Kazuya Yonekura
  • Journal Title: Physical Review D 81 Pages: 125017-125017
  • Peer Reviewed
• [Journal Article] Low-Scale Gauge Mediation and Composite Messenger Dark Matter (2010)
  • Author(s): Koichi Hamaguchi, Eita Nakumura, Satoshi Shirai, Tsutomu Yanagida
  • Journal Title: JHEP 1004 Pages: 119-119
  • Peer Reviewed
• [Journal Article] Relaxing a constraint on the number of messengers in a low-scale gauge mediation (2010)
  • Author(s): Ryosuke Sato, Tsutomu Yanagida, Kazuya Yonekura
  • Journal Title: Physical Review D 81 Pages: 45003-45003
  • Peer Reviewed
• [Journal Article] Neutralino Dark Matter in Gauge Mediation in Light of CDMS-II (2010)
  • Author(s): Masahiro Ibe
  • Journal Title: Physical Review D 81
  • Peer Reviewed
• [Journal Article] A test for light gravitino scenario at the LHC (2009)
  • Author(s): Satoshi Shirai, Tsutomu Yanagida
  • Journal Title: Physics Letters B 680 Pages: 351-354
  • Peer Reviewed
• [Journal Article] Conformal supersymmetry breaking in vector-like theories (2009)
  • Author(s): K-I.Izawa, Fuminobu Takahashi, Tsutomu Yanagida, Kazuya Yonekura
  • Journal Title: Physical Rview D 80 Pages: 85017-85017
  • Peer Reviewed
• [Journal Article] Runaway dynamics and supersymmetry breaking (2009)
  • Author(s): K-I.Izawa, Fuminobu Takahashi, Tsutomu Yanagida, Kazuya Yonekura
  • Journal Title: Physics Letters B 677 Pages: 195-196
  • Peer Reviewed
• [Journal Article] Decaying gravitino dark matter and upper bound on the gluino mass (2009)
  • Author(s): Koichi Hamaguchi, Fuminobu Takahashi, Tsutomu Yanagida
  • Journal Title: Physics Letters B 677 Pages: 59-61
  • Peer Reviewed
• [Journal Article] Breit-Wigner enhancement of dark matter annihilation (2009)
  • Author(s): Masahiro Ibe, Hitoshi Murayama, Tsutomu Yanagida
  • Journal Title: Physicsl rEVIEW d 79 Pages: 95009-95009
  • Peer Reviewed
• [Journal Article] Decaying dark matter baryons in a composite messenger model (2009)
  • Author(s): Koichi Hamaguchi, Eita Nakumura, Satoshi Shirai, Tsutomu Yanagida
  • Journal Title: Physics Letters B 674 Pages: 199-302
  • Peer Reviewed
• [Journal Article] Conformal gauge mediation and light gravitino of mass m_{3/2}<O(10) eV (2009)
  • Author(s): Masahiro Ibe, Yu Nakayama, Tsutomu Yanagida
  • Journal Title: Physics Letters B 671 Pages: 378-382
  • Peer Reviewed
• [Journal Article] A test for light gravitino at the LHC (2009)
  • Author(s): Satoshi Shirai, Tsutomu Yanagida
  • Journal Title: Physics Letters B 680 Pages: 351-354
  • Peer Reviewed
• [Journal Article] Conformal supersymmetry breaking in vector-like gauge theories (2009)
  • Author(s): Ken-ichi Izawa, Fuminobu Takahahsi, Tsutomu Yanagida, Kazuya Yonekura
  • Journal Title: Physical Review D 80 Pages: 85017-1
  • Peer Reviewed
• [Journal Article] R-violating Decay of wino dark matter and electron/positron excesses in PAMELA/Fermi experiments (2009)
  • Author(s): Satoshi Shirai, Fuminobu Takahashi, Tsutomu Yanagida
  • Journal Title: Physics Letters B 680 Pages: 485-488
  • Peer Reviewed
• [Journal Article] Runaway Dynamics and supersymmetry breaking (2009)
  • Author(s): Ken-ichi Izawa, Fuminobu Takahashi, Tsutomu Yanagida, Kazuya Yonekura
  • Journal Title: Physics Letters B 677 Pages: 195-196
  • Peer Reviewed
• [Journal Article] A Test of Light Gravitino Scenario at the LHC (2009)
  • Author(s): Satoshi Shirai
  • Journal Title: Physics Letters B 680 Pages: 351-354
  • Peer Reviewed
• [Journal Article] Conformal Supersymmetry Breaking in Vector-like Gauge Theory (2009)
  • Author(s): Ken-ichi Izawa
  • Journal Title: Physical Review D 80
  • Peer Reviewed
• [Journal Article] High-energy Cosmic-Ray Positron from Hidden-Gauge-Boson Dark Matter (2009)
  • Author(s): Chuan-Ren Chen
  • Journal Title: Physics Letters B 673 Pages: 255-259
  • Peer Reviewed
• [Journal Article] Decaying Dark Matter Baryons in a Composite Messenger Model (2009)
  • Author(s): Koich Hamaguchi
  • Journal Title: Physics Letters B 674 Pages: 299-302
  • Peer Reviewed
• [Journal Article] Breit-Wigner Enhancement of Dark Matter Annihilation (2009)
  • Author(s): Masahiro The
  • Journal Title: Physical Review D 79
  • Peer Reviewed
• [Journal Article] Gauge mediation with sequestered supersymmetry breaking (2008)
  • Author(s): Satoshi Shirai, Fuminobu Takahashi, Tsutomu Yanagida, Kazuya Yonekura
  • Journal Title: Physicsl Review D 78 Pages: 75003-75003
  • Peer Reviewed
• [Journal Article] Strongly interacting gauge mediation at the LHC (2008)
  • Author(s): Koichi Hamaguchi, Eita Nakumura, Satoshi Shirai, Tsutomu Yanagida
  • Journal Title: JHEP 0807 Pages: 107-107
  • Peer Reviewed
• [Journal Article] Upperbound on squark masses in gauge-mediation model with light gravitino (2008)
  • Author(s): Junji Hisano, Minoru Nagai, Shohei Sugiyama, Tsutomu Yanagida
  • Journal Title: Physicd Letters B 665 Pages: 237-241
  • Peer Reviewed
• [Journal Article] Test of anomaly mediation at thr LHC (2008)
  • Author(s): Shoji Asai, Takeo Moroi, Tsutomu Yanagida
  • Journal Title: Physics Letters B 664 Pages: 185-189
  • Peer Reviewed
• [Journal Article] Determining the mass for an ultralight gravitino at LHC (2008)
  • Author(s): Koichi Hamaguchi, Satoshi Shirai, Tsutomu Yanagida
  • Journal Title: Physics Letters B 663 Pages: 86-94
  • Peer Reviewed
• [Journal Article] Anomaly-induced inflaton decay and gravitino-overproduction problem (2008)
  • Author(s): Motoi Endo
  • Journal Title: Physics Letters B658 Pages: 236-236
  • Peer Reviewed
• [Journal Article] Composite messenger baryon as a cold dark matter (2007)
  • Author(s): Koichi Hamaguchi, Satoshi Shirai, Tsutomu Yanagida
  • Journal Title: Physics Letters B 654 Pages: 110-112
  • Peer Reviewed
• [Journal Article] Determining the mass for a light gravitino (2007)
  • Author(s): Koichi Hamaguchi, Satoshi Shirai, Tsutomu Yangida
  • Journal Title: Physics Letters B 651 Pages: 44-48
  • Peer Reviewed
• [Journal Article] Gauge mediation with D-term SUSY breaking (2007)
  • Author(s): Yu Nakayama, Masato Taki, Taizan Watari, Tsutomu Yanagida
  • Journal Title: Physics Letters B 65 Pages: 58-66
  • Peer Reviewed
• [Journal Article] Inflaton Decay in Supergravity (2007)
  • Author(s): Motoi Endo
  • Journal Title: Physical Review D76 Pages: 83509-83509
  • Peer Reviewed
• [Journal Article] Retrofitted gravity mediation without the gravitino-overproduction problem (2007)
  • Author(s): Motoi Endo
  • Journal Title: Physical Review D76 Pages: 83508-83508
  • Peer Reviewed
• [Journal Article] The Decay of the Inflaton in No-scale Supergravity (2007)
  • Author(s): Motoi Endo
  • Journal Title: JCAP 0702 Pages: 18-18
  • Peer Reviewed
• [Presentation] Dark Matter and Supersymmetry Breaking (2009)
  • Author(s): Tsutomu Yanagida
  • Organizer: PASCOS 2009
  • Place of Presentation: DESY Hamburg
  • Year and Date: 2009-07-10
• [Presentation] (2009)
  • Author(s): 柳田勉
  • Organizer: Dark Matter, PASCOS 2009(DESY研究所)
  • Place of Presentation: Hamburg
  • Year and Date: 2009-07-10
• [Presentation] Dark Matter (2009)
  • Author(s): 柳田勉
  • Organizer: PASCOS2009
  • Place of Presentation: DESY研究所,Hamburgドイツ
  • Year and Date: 2009-07-10
• [Presentation] Conformal SUSY Breaking and Cosmological Constant (2008)
  • Author(s): Tsutomu Yanagida
  • Organizer: PASCOS 2008
  • Place of Presentation: Institute for Theoretical Physics, Canada
  • Year and Date: 2008-06-02
• [Presentation] Dark Energy and Dark Matter (2007)
  • Author(s): Tsutomu Yanagida
  • Organizer: BCTP Opening Symposium
  • Place of Presentation: Berkely University of California
  • Year and Date: 2007-10-19
• [Presentation] Dark Energy and Dark Matter (2007)
  • Author(s): T. Yanagida
  • Organizer: BCTP Opening Symposium
  • Place of Presentation: University of California, Berkely
  • Year and Date: 2007-10-19