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2011 Fiscal Year Annual Research Report

宇宙初期進化の直接観測に基づく究極理論探査

Planned Research

Project AreaThe Physical Origin of the Universe viewed through the Cosmic Background Radiation - from Cosmological Inflation to Dark Ages -
Project/Area Number 21111006
Research InstitutionHigh Energy Accelerator Research Organization

Principal Investigator

小玉 英雄  大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 教授 (40161947)

Co-Investigator(Kenkyū-buntansha) 横山 順一  東京大学, 理学(系)研究科(研究院), 教授 (50212303)
川崎 雅裕  東京大学, 宇宙線研究所, 教授 (50202031)
辻川 信二  東京理科大学, 理学部, 准教授 (30318802)
早田 次郎  京都大学, 理学(系)研究科(研究院), 准教授 (00222076)
向山 信治  東京大学, カブリ数物連携宇宙研究機構, 准教授 (40396809)
中山 和則  東京大学, 理学(系)研究科(研究院), 助教 (90596652)
Keywordsインフレーション宇宙模型 / 究極理論 / 超弦理論 / 超重力理論 / 修正重力理論 / 宇宙背景放射 / Bモード / 宇宙ゆらぎ
Research Abstract

本年度の主要な成果は以下の通りである.
1.インフレーション宇宙模型:インフラトンが1成分となる最も一般的な模型でゆらぎのスペクトル,統計の非ガウス性を統一的に計算.カーバトンが2次的なインフレーションを起こす模型でゆらぎスペクトル指数が大きな波長依存性を持つことを指摘.CDM等曲率ゆらぎとバリオン等曲率ゆらぎを,CMB観測と中性水素21cm線の将来観測の組み合わせにより区別できることを示す.非等方インフレーション模型を非可換ゲージ理論に一般化.また,多成分ゲージ場理論では非等方性が抑制されることを示す.パリティ奇相互作用をもつ重力理論において、原始重力波の高次相関を計算する新たな手法を定式化し, slow rollパラメーターに比例した非ガウス相関が現れることを指摘.インフレーション場のゆらぎに対する赤外発散問題についてのこれまでの研究をslow roll近似が成り立たない場合に一般化.De Sitter時空での非線形シグマモデルにおいて,赤外量子効果の主要部の相殺およびくり込みによる物質相互作用定数の時間依存性を指摘.
2.統一理論:超対称標準模型の拡張によりヒグス場が自然にインフレーションを引き起こすことを示し,超対称性の破れのスケール,インフレーションスケール,スペクトル指数の間の関係式,超重力ハイブリッド模型におけるグラヴィティーノ質量への上限を導いた.特に,nsの観測値とLHC実験の示唆するヒグス質量の値が一致することを指摘.新しい量子重力理論の候補(Horava-Lifshitz理論,massive gravity理論)の整合性とそれらに基づく宇宙論の検討.
繰り越しにより,国際ワークショップExDiP2012を2012年8月に開催し,超弦理論研究者と宇宙論研究者の共同研究を促進するとともに,超弦理論からのアプローチについて新たな研究の方向を見いだした.

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

インフレーション模型の研究については,最も一般的な1成分インフラトン模型の完全解析,非等方インフレーション模型の組織的研究と観測的予言,等曲率ゆらぎの分離法など多くの優れた成果を上げた.また,4次元超重力理論に基づく宇宙模型の研究でも,最新のLHC実験の成果を取り入れた現実的な模型構成に成功しており,十分な進展があった.だだし,それらと究極理論との関連については十分な成果がまだ得られていない.この問題を打開するため,繰越により平成24年8月に関連する国内外の最先端の研究者を招聘し,超弦理論宇宙論ワークショップを開催した.このワークショップでの検討により,究極理論からのアプローチについていくつかの有望な方向を見いだすことができた.

Strategy for Future Research Activity

次の2つの方向を軸として研究を進める.まず,2013年初頭に公表されるCMB観測衛星Planckの観測結果およびLHCの2012年度の実験結果の2つの情報を,様々なインフレーション模型の観測的予言および4次元超重力理理論に基づく宇宙模型についてのこれまでの準備的研究成果とつきあわせることにより,本研究の中心課題であるインフレ-ション模型の選別およびそれと整合的な4次元超重力理論の絞り込みを精力的に行う.これと平行して,まだ十分な成果がない超弦理論に基づくインフレーション模型の構築に向けて,超弦理論のコンパクト化というトップダウンアプローチと高い局所超対称性をもつ4次元超重量理論の真空構造の研究というボトムアップアプローチを並行的に推進する.

  • Research Products

    (115 results)

All 2012 2011 Other

All Journal Article (65 results) (of which Peer Reviewed: 65 results) Presentation (49 results) (of which Invited: 38 results) Remarks (1 results)

  • [Journal Article] Statistical Anisotropy from Anisotropic Inflation2012

    • Author(s)
      Jiro Soda
    • Journal Title

      Class. Quant. Grav

      Volume: 29 Pages: 083001

    • DOI

      10.1088/0264-9381/29/8/083001

    • Peer Reviewed
  • [Journal Article] Cosmological perturbations of self-accelerating universe in nonlinear massive gravity2012

    • Author(s)
      Emir Gumrukcuoglu, Chunshan Lin, Shinji Mukohyama
    • Journal Title

      JCAP

      Volume: 1203 Pages: 006

    • DOI

      10.1088/1475-7516/2012/03/006

    • Peer Reviewed
  • [Journal Article] Axiverse and Black Hole2012

    • Author(s)
      Hideo Kodama, Hirotaka Yoshino
    • Journal Title

      International Journal of Modern Physics Conference Series

      Volume: 7 Pages: 84-115

    • DOI

      10.1142/S2010194512004199

    • Peer Reviewed
  • [Journal Article] Gauge-flation and Cosmic No-Hair Conjecture2012

    • Author(s)
      Azadeh Maleknejad, M.M. Sheikh-Jabbari, Jiro Soda
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1201 Pages: 016

    • DOI

      10.1088/1475-7516/2012/01/016

    • Peer Reviewed
  • [Journal Article] Isocurvature perturbations in extra radiation2012

    • Author(s)
      M.Kawasaki, K.Miyamoto, K.Nakayama, T.Sekiguchi
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1202 Pages: 022

    • DOI

      DOI: 10.1088/1475-7516/2012/02/022

    • Peer Reviewed
  • [Journal Article] Conditions for the cosmological viability of the most general scalar-tensor theories and their applications to extended Galileon dark energy models2012

    • Author(s)
      Antonio De Felice, Shinji Tsujikawa
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1202 Pages: 007

    • DOI

      10.1088/1475-7516/2012/02/007

    • Peer Reviewed
  • [Journal Article] Cosmological constraints on extended Galileon models2012

    • Author(s)
      Antonio De Felice, Shinji Tsujikawa
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1203 Pages: 025

    • DOI

      10.1088/1475-7516/2012/03/025

    • Peer Reviewed
  • [Journal Article] The inflating curvaton2012

    • Author(s)
      Konstantinos Dimopoulos, Kazunori Kohri, David H. Lyth, Tomohiro Matsuda
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1203 Pages: 022

    • DOI

      10.1088/1475-7516/2012/03/022

    • Peer Reviewed
  • [Journal Article] Dark radiation from modulated reheating2012

    • Author(s)
      F. Takahashi et al
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1203 Pages: 036

    • DOI

      10.1088/1475-7516/2012/03/036

    • Peer Reviewed
  • [Journal Article] Higgs mass and inflation2012

    • Author(s)
      K.Nakayama, F.Takahashi
    • Journal Title

      Physics Letters B

      Volume: 707 Pages: 142-145

    • DOI

      10.1016/j.physletb.2011.12.033

    • Peer Reviewed
  • [Journal Article] NMSSM in gauge-mediated SUSY breaking without domain wall problem2012

    • Author(s)
      K.Hamaguchi, K.Nakayama, N.Yokozaki
    • Journal Title

      Physics Letters B

      Volume: 708 Pages: 100-106

    • DOI

      10.1016/j.physletb.2012.01.027

    • Peer Reviewed
  • [Journal Article] Wino LSP detection in the light of recent Higgs searches at the LHC2012

    • Author(s)
      T.Moroi, K.Nakayama
    • Journal Title

      Physics Letters B

      Volume: 710 Pages: 159-163

    • DOI

      10.1016/j.physletb.2012.02.058

    • Peer Reviewed
  • [Journal Article] Hubble Induced Mass in Radiation Dominated Universe2012

    • Author(s)
      M. Kawasaki and T. Takesako
    • Journal Title

      Physics Letters B

      Volume: 711 Pages: 173-177

    • DOI

      10.1016/j.physletb.2012.03.069

    • Peer Reviewed
  • [Journal Article] Primordial seeds of supermassive black holes2012

    • Author(s)
      M. Kawasaki, A. Kusenko and T. T. Yanagida
    • Journal Title

      Physics Letters B

      Volume: 711 Pages: 1-5

    • DOI

      10.1016/j.physletb.2012.03.056

    • Peer Reviewed
  • [Journal Article] Holographic Dual of de Sitter Universe with AdS Bubbles2012

    • Author(s)
      Sugumi Kanno, Misao Sasaki, Jiro Soda
    • Journal Title

      Nuclear Physics B

      Volume: 855 Pages: 361-387

    • DOI

      10.1016/j.nuclphysb.2011.10.020

    • Peer Reviewed
  • [Journal Article] Cosmology with space-based gravitational-wave detectors --- dark energy and primordial gravitational waves ---.2012

    • Author(s)
      A. Nishizawa, K. Yagi, A. Taruya and T. Tanaka,
    • Journal Title

      Physical Review D

      Volume: 85 Pages: 044047:1-18

    • DOI

      10.1103/PhysRevD.85.044047

    • Peer Reviewed
  • [Journal Article] Infra-red effects of Non-linear sigma model in de Sitter space2012

    • Author(s)
      Hiroyuki Kitamoto, Yoshihisa Kitazawa
    • Journal Title

      Physical Review D

      Volume: 85 Pages: 044062

    • DOI

      10.1103/PhysRevD.85.044062

    • Peer Reviewed
  • [Journal Article] Phase transition and monopole production in supergravity inflation2012

    • Author(s)
      K.Kamada, K.Nakayama}, J.'i.Yokoyama
    • Journal Title

      Physical Review D

      Volume: 85 Pages: 043503

    • DOI

      10.1103/PhysRevD.85.043503

    • Peer Reviewed
  • [Journal Article] General relativity limit of Hořava-Lifshitz gravity with a scalar field in gradient expansion2012

    • Author(s)
      A.Emir Gumrukcuoglu, Shinji Mukohyama, Anzhong Wang
    • Journal Title

      Physical Review D

      Volume: 85 Pages: 064042:1-16

    • DOI

      10.1103/PhysRevD.85.064042

    • Peer Reviewed
  • [Journal Article] Observational tests of inflation with a field coupling to gravity2012

    • Author(s)
      Shinji Tsujikawa
    • Journal Title

      Physical Review D

      Volume: 85 Pages: 083518

    • DOI

      10.1103/PhysRevD.85.083518

    • Peer Reviewed
  • [Journal Article] Evolution of Synchrotron X-rays in Supernova Remnants2012

    • Author(s)
      R. Nakamura, A. Bamba, T. Dotani, M. Ishida, R. Yamazaki, K. Kohri
    • Journal Title

      The Astrophysical Journal

      Volume: 746 Pages: 134

    • DOI

      10.1088/0004-637X/746/2/134

    • Peer Reviewed
  • [Journal Article] Observational constraints on loop quantum cosmology2011

    • Author(s)
      M.Bojowald, G.Calcagni, S.Tsujikawa
    • Journal Title

      Phys. Rev. Lett

      Volume: 107 Pages: 211302

    • DOI

      10.1103/PhysRevLett.107.211302

    • Peer Reviewed
  • [Journal Article] On the waterfall behavior in hybrid inflation2011

    • Author(s)
      Hideo Kodama, Kazunori Kohri, Kazunori Nakayama
    • Journal Title

      Prog. Theor. Phys

      Volume: 126 Pages: 331

    • DOI

      10.1143/PTP.126.331

    • Peer Reviewed
  • [Journal Article] The Gravitational Lensing Effect on the CMB Polarisation Anisotropy in the Lambda-LTB Model.2011

    • Author(s)
      Hajime Goto, Hideo Kodama
    • Journal Title

      Prog. Theor. Phys.

      Volume: 125 Pages: 815-836

    • DOI

      10.1143/PTP.125.815

    • Peer Reviewed
  • [Journal Article] Natural selection of inflationary vacuum required by infra-red regularity and gauge-invariance2011

    • Author(s)
      Y. Urakawa and T. Tanaka
    • Journal Title

      Prog. Theor. Phys.

      Volume: 125 Pages: 1067-1089

    • DOI

      10.1143/PTP.125.1067

    • Peer Reviewed
  • [Journal Article] Generalized G-inflation: Inflation with the most general second-order field equations2011

    • Author(s)
      T. Kobayashi, M. Yamaguchi, J. Yokoyama
    • Journal Title

      Prog. Theor. Phys.

      Volume: 126 Pages: 511-529

    • DOI

      10.1143/PTP.126.511

    • Peer Reviewed
  • [Journal Article] Black holes in braneworld models2011

    • Author(s)
      N. Tanahashi and T. Tanaka
    • Journal Title

      Prog. Theor. Phys. Suppl

      Volume: 189 Pages: 227-268

    • DOI

      10.1143/PTPS.189.227

    • Peer Reviewed
  • [Journal Article] Black hole solutions in string theory2011

    • Author(s)
      Kei-ichi Maeda, Masato Nozawa
    • Journal Title

      Prog. Theor. Phys. Suppl

      Volume: 189 Pages: 310-350

    • DOI

      10.1143/PTPS.189.310

    • Peer Reviewed
  • [Journal Article] Primordial non-Gaussianities in general modified gravitational models of inflation2011

    • Author(s)
      De Felice, Antonio and Tsujikawa, Shinji
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1104 Pages: 029:1-25

    • DOI

      10.1088/1475-7516/2011/04/029

    • Peer Reviewed
  • [Journal Article] Dominance of gauge artifact in the consistency relation for the primordial bispectrum2011

    • Author(s)
      T. Tanaka and Y. Urakawa
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1105 Pages: 014:1-12

    • DOI

      10.1088/1475-7516/2011/05/014

    • Peer Reviewed
  • [Journal Article] A note on the role of the boundary terms for the non-Gaussianity in general k-inflation2011

    • Author(s)
      F. Arroja and T. Tanaka
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1105 Pages: 005:1-8

    • DOI

      10.1088/1475-7516/2011/05/005

    • Peer Reviewed
  • [Journal Article] Anisotropic Inflation with Non-Abelian Gauge Kinetic Function2011

    • Author(s)
      Keiju Murata, Jiro Soda
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1106 Pages: 037:1-16

    • DOI

      10.1088/1475-7516/2011/06/037

    • Peer Reviewed
  • [Journal Article] Chaotic inflation in modified gravitational theories2011

    • Author(s)
      A. De Felice, Shinji Tsujikawa, J. Elliston, R. Tavakol
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1108 Pages: 021

    • DOI

      10.1088/1475-7516/2011/08/021

    • Peer Reviewed
  • [Journal Article] Evolution of String-Wall Networks and Axionic Domain Wall Problem2011

    • Author(s)
      T. Hiramatsu, M. Kawasaki andK. Saikawa
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1108 Pages: 030

    • DOI

      10.1088/1475-7516/2011/08/030

    • Peer Reviewed
  • [Journal Article] Study of gravitational radiation from cosmic domain walls2011

    • Author(s)
      M. Kawasaki and K. Saikawa
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1109 Pages: 008

    • DOI

      10.1088/1475-7516/2011/09/008

    • Peer Reviewed
  • [Journal Article] Low-scale Supersymmetry from Inflation2011

    • Author(s)
      K.Nakayama, F.Takahashi
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1110 Pages: 033

    • DOI

      10.1088/1475-7516/2011/10/033

    • Peer Reviewed
  • [Journal Article] Differentiating CDM and Baryon Isocurvature Models with 21 cm2011

    • Author(s)
      M. Kawasaki, T. Sekiguchi, and T. Takahashi
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1110 Pages: 028

    • DOI

      10.1088/1475-7516/2011/10/028

    • Peer Reviewed
  • [Journal Article] Observational test of inflation in loop quantum cosmology2011

    • Author(s)
      M. Bojowald, G. Calcagni, Shinji Tsujikawa
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1111 Pages: 030:1-8

    • DOI

      10.1088/1475-7516/2011/11/046

    • Peer Reviewed
  • [Journal Article] Open FRW universes and self-acceleration from nonlinear massive gravity.2011

    • Author(s)
      A.Emir Gumrukcuoglu, Chunshan Lin, Shinji Mukohyama
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1111 Pages: 067

    • DOI

      10.1088/1475-7516/2011/11/030

    • Peer Reviewed
  • [Journal Article] Parity violation in graviton non-Gaussianity2011

    • Author(s)
      Jiro Soda, Hideo Kodama, Masato Nozawa
    • Journal Title

      Journal of High Energy Physics

      Volume: 1108 Pages: 067

    • DOI

      10.1007/JHEP08(2011)067

    • Peer Reviewed
  • [Journal Article] Relaxing the Higgs mass bound in singlet extensions of the MSSM2011

    • Author(s)
      K.Nakayama, N.Yokozaki, K.Yonekura
    • Journal Title

      Journal of High Energy Physics

      Volume: 1111 Pages: 021

    • DOI

      10.1007/JHEP11(2011)021

    • Peer Reviewed
  • [Journal Article] Domain Walls and Gravitational Waves after Thermal Inflation2011

    • Author(s)
      T.Moroi, K.Nakayama
    • Journal Title

      Physics Letters B

      Volume: 703 Pages: 160-166

    • DOI

      10.1016/j.physletb.2011.07.075

    • Peer Reviewed
  • [Journal Article] Effective gravitational couplings for cosmological perturbations in the most general scalar-tensor theories with second-order field equations2011

    • Author(s)
      A. De Felice, T. Kobayashi, Shinji Tsujikawa
    • Journal Title

      Physics Letters B

      Volume: 706 Pages: 123-133

    • DOI

      10.1016/j.physletb.2011.11.028

    • Peer Reviewed
  • [Journal Article] Primordial non-Gaussianities of gravitational waves in the most general single-field inflation model2011

    • Author(s)
      X. Gao, T. Kobayashi, M. Yamaguchi and J. Yokoyama
    • Journal Title

      Physical Review Letter

      Volume: 107 Pages: 211301

    • DOI

      10.1103/PhysRevLett.107.211301

    • Peer Reviewed
  • [Journal Article] Stability of Schwarzschild-like solutions in f(R,G) gravity models2011

    • Author(s)
      A. De Felice, T. Suyama and T. Tanaka
    • Journal Title

      Physical Review D

      Volume: 83 Pages: 104035:1-12

    • DOI

      10.1103/PhysRevD.83.104035

    • Peer Reviewed
  • [Journal Article] Observational constraints on assisted k-inflation2011

    • Author(s)
      Junko Ohashi, Shinji Tsujikawa
    • Journal Title

      Physical Review D

      Volume: 83 Pages: 103522

    • DOI

      10.1103/PhysRevD.83.103522

    • Peer Reviewed
  • [Journal Article] Probing the size of extra dimension with gravitational wave astronomy2011

    • Author(s)
      K. Yagi, N. Tanahashi and T.~Tanaka
    • Journal Title

      Physical Review D

      Volume: 83 Pages: 084036:1-16

    • DOI

      10.1103/PhysRevD.83.084036

    • Peer Reviewed
  • [Journal Article] Cosmological constraints on dark matter models with velocity-dependent annihilation cross section2011

    • Author(s)
      Junji Hisano, Masahiro Kawasaki, Kazunori Kohri, Takeo Moroi, Kazunori Nakayama, Toyokazu
    • Journal Title

      Physical Review D

      Volume: 83 Pages: 123511

    • DOI

      10.1103/PhysRevD.83.123511

    • Peer Reviewed
  • [Journal Article] Horava-Lifshitz gravity with λ→∞2011

    • Author(s)
      A.Emir Gumrukcuoglu, Shinji Mukohyama
    • Journal Title

      Physical Review D

      Volume: 83 Pages: 124033:1-10

    • DOI

      10.1103/PhysRevD.83.124033

    • Peer Reviewed
  • [Journal Article] Cosmological Aspects of Inflation in a Supersymmetric Axion Model2011

    • Author(s)
      M.Kawasaki, N.Kitajima, K.Nakayama
    • Journal Title

      Physical Review D

      Volume: 83 Pages: 123521

    • DOI

      10.1103/PhysRevD.83.123521

    • Peer Reviewed
  • [Journal Article] Gravitino dark matter and baryon asymmetry from Q-ball decay in gauge mediation2011

    • Author(s)
      S. Kasuya and M. Kawasaki
    • Journal Title

      Physical Review D

      Volume: 84 Pages: 123528

    • DOI

      10.1103/PhysRevD.84.123528

    • Peer Reviewed
  • [Journal Article] Non-Gaussianity from Curvatons Revisited2011

    • Author(s)
      M. Kawasaki, T. Kobayashi, and F. Takahashi
    • Journal Title

      Physical Review D

      Volume: 84 Pages: 123506

    • DOI

      10.1103/PhysRevD.84.123528

    • Peer Reviewed
  • [Journal Article] Cosmic censorship in overcharging a Reissner-Nordstrom black hole via charged particle absorption2011

    • Author(s)
      S. Isoyama, N. Sago and T. Tanaka
    • Journal Title

      Physical Review D

      Volume: 84 Pages: 124024:1-15

    • DOI

      10.1103/PhysRevD.84.124024

    • Peer Reviewed
  • [Journal Article] Temporal enhancement of super-horizon curvature perturbations from decays of two curvatons and its cosmological consequences2011

    • Author(s)
      T. Suyama and J. Yokoyama
    • Journal Title

      Physical Review D

      Volume: 84 Pages: 083511

    • DOI

      10.1103/PhysRevD.84.083511

    • Peer Reviewed
  • [Journal Article] Inflationary non-Gaussianities in the most general second-order scalar-tensor theories2011

    • Author(s)
      Antonio De Felice, Shinji Tsujikawa
    • Journal Title

      Physical Review D

      Volume: 84 Pages: 083504:1-17

    • DOI

      10.1103/PhysRevD.84.083504

    • Peer Reviewed
  • [Journal Article] Curvature perturbation from velocity modulation2011

    • Author(s)
      K.Nakayama, T.Suyama
    • Journal Title

      Physical Review D

      Volume: 84 Pages: 063520

    • DOI

      10.1103/PhysRevD.84.063520

    • Peer Reviewed
  • [Journal Article] Nonlinear superhorizon perturbations in Horava-Lifshitz gravity2011

    • Author(s)
      Keisuke Izumi, Shinji Mukohyama
    • Journal Title

      Physical Review D

      Volume: 84 Pages: 064025:1-9

    • DOI

      10.1103/PhysRevD.84.064025

    • Peer Reviewed
  • [Journal Article] Open inflation in the landscape2011

    • Author(s)
      D. Yamauchi, A. Linde, A. Naruko, M. Sasaki and T. Tanaka
    • Journal Title

      Physical Review D

      Volume: 84 Pages: 043513:1-14

    • DOI

      10.1103/PhysRevD.84.043513

    • Peer Reviewed
  • [Journal Article] Big-bang nucleosynthesis with a long-lived charged massive particle including $^4$He spallation2011

    • Author(s)
      Toshifumi Jittoh, Kazunori Kohri, Masafumi Koike, Joe Sato, Kenichi Sugai, Masato Yamanaka, Koichi Yazaki
    • Journal Title

      Physical Review D

      Volume: 84 Pages: 035008

    • DOI

      0.1103/PhysRevD.84.035008

    • Peer Reviewed
  • [Journal Article] Phenomenology of Gravitational Aether as a solution to the Old Cosmological Constant Problem2011

    • Author(s)
      S. Aslanbeigi, G. Robbers, B. Z. Foster, K. Kohri, N. Afshordi
    • Journal Title

      Physical Review D

      Volume: 84 Pages: 103522

    • DOI

      10.1103/PhysRevD.84.103522

    • Peer Reviewed
  • [Journal Article] On the Adiabatic Solution to the Polonyi/Moduli Problem2011

    • Author(s)
      K.Nakayama, F.Takahashi, T.T.Yanagida
    • Journal Title

      Physical Review D

      Volume: 84 Pages: 123523

    • DOI

      10.1103/PhysRevD.84.123523

    • Peer Reviewed
  • [Journal Article] Prospects for determination of thermal history after inflation with future gravitational wave detectors2011

    • Author(s)
      S.Kuroyanagi, K.Nakayama, S.Saito
    • Journal Title

      Physical Review D

      Volume: 84 Pages: 123513

    • DOI

      10.1103/PhysRevD.84.123513

    • Peer Reviewed
  • [Journal Article] Design concepts for the Cherenkov Telescope Array CTA: An advanced facility for ground-based high-energy gamma-ray astronomy2011

    • Author(s)
      CTA Consortium Collaboration (M. Actis (La Plata U.) et al.).
    • Journal Title

      Exper.Astron

      Volume: 32 Pages: 193-316

    • DOI

      10.1007/s10686-011-9247-0

    • Peer Reviewed
  • [Journal Article] Possible Origin of Rapid Variability of Gamma-Ray Bursts due to Convective Energy Transfer in Hyperaccretion Disks2011

    • Author(s)
      Norita Kawanaka, Kazunori Kohri
    • Journal Title

      Monthly Notice of Royal Astronomical Society

      Volume: 419 Pages: 713-717

    • DOI

      10.1111/j.1365-2966.2011.19733.x

    • Peer Reviewed
  • [Journal Article] Positron annihilation as a cosmic-ray probe2011

    • Author(s)
      Yutaka Ohira, Kazunori Kohri, Norita Kawanaka
    • Journal Title

      Monthly Notice of Royal Astronomical Society Letters

      Volume: 421 Pages: L102-L106

    • DOI

      10.1111/j.1745-3933.2011.01215.x

    • Peer Reviewed
  • [Presentation] Probing the inhomogeneous universe by CMB B-mode2011

    • Author(s)
      Hideo Kodama
    • Organizer
      Workshop on Inhomogenious Universe
    • Place of Presentation
      Jyvaskyla University, Jyvaskyla, Finland
    • Year and Date
      2011-08-17
  • [Presentation] Tensor perturbation constraint on inflation models with non-negligible spatial curvature in landscape scenario

    • Author(s)
      Takahiro Tanaka
    • Organizer
      Bubbles in the Sky
    • Place of Presentation
      UC Davis, USA
    • Invited
  • [Presentation] Dynamics of dark energy

    • Author(s)
      Shinji Tsujikawa
    • Organizer
      24-th Spring School on Particles and Fields
    • Place of Presentation
      Hsinchu, Taiwan
    • Invited
  • [Presentation] From Black Holes to Hydrodynamics

    • Author(s)
      Shinji Mukohyama
    • Organizer
      From Black Holes to Hydrodynamics
    • Place of Presentation
      University of Victoria, Canada
    • Invited
  • [Presentation] IR issues during inflation - constraints on quantum state -

    • Author(s)
      Takahiro Tanaka
    • Organizer
      Cosmological Non-Gaussianity: Observations Confront Theory Workshop
    • Place of Presentation
      Michigan, USA
    • Invited
  • [Presentation] 超弦理論に基づくインフレーションモデルの現状

    • Author(s)
      Masato Nozawa
    • Organizer
      背景放射で拓く宇宙創成の物理 シンポジウム2011
    • Place of Presentation
      宇宙航空研究開発機構 宇宙科学研究所
    • Invited
  • [Presentation] IR issues during inflation - constraints on quantum state

    • Author(s)
      Takahiro Tanaka
    • Organizer
      Cosmological Frontiers in Fundamental Physics Workshop,
    • Place of Presentation
      APC, Paris, France
    • Invited
  • [Presentation] SUGRA宇宙モデルとlarge field inflation

    • Author(s)
      中山和則
    • Organizer
      新学術領域シンポジウム
    • Place of Presentation
      JAXA宇宙科学研究所
    • Invited
  • [Presentation] Statistical Symmetry Breaking in the CMB

    • Author(s)
      Jiro Soda
    • Organizer
      GLOVeS
    • Place of Presentation
      INR、ロシア
    • Invited
  • [Presentation] Cosmology and black hole with ghost condensate

    • Author(s)
      Shinji Mukohyama
    • Organizer
      Gravity, Lorentz Violation & Superluminality
    • Place of Presentation
      INR Moscow, Russia
    • Invited
  • [Presentation] Inflation in modified gravitational theories

    • Author(s)
      Shinji Tsujikawa
    • Organizer
      Summer Institute 2011
    • Place of Presentation
      富士CALM, 富士吉田
    • Invited
  • [Presentation] Phenomenological Aspects of Polonyi/Moduli Problem

    • Author(s)
      中山和則
    • Organizer
      Summer Institute 2011
    • Place of Presentation
      富士CALM, 富士吉田
    • Invited
  • [Presentation] Inflation from a SUSY Axion Model

    • Author(s)
      M. Kawasaki
    • Organizer
      International Conference on Particle Physics and Cosmology (COSMO 11)
    • Place of Presentation
      Port (ポルトガル)
    • Invited
  • [Presentation] Long-lived charged SUSY particles with BBN, LSS and CMB

    • Author(s)
      郡 和範
    • Organizer
      International Conference on Particle Physics and Cosmology (COSMO 11)
    • Place of Presentation
      Port (ポルトガル)
  • [Presentation] Dark Matter indirect detection in terms of cosmic rays

    • Author(s)
      郡 和範
    • Organizer
      Physics Seminar
    • Place of Presentation
      ヘルシンキ大、フィンランド
    • Invited
  • [Presentation] Constraints on modified gravity models from future gravitational wave observations

    • Author(s)
      Takahiro Tanaka
    • Organizer
      KIAS-YITP Joint workshop ``String Theory, Holography and Beyond'’
    • Place of Presentation
      KIAS, Seoul, Korea
    • Invited
  • [Presentation] Infrared divergences and cosmological observables

    • Author(s)
      Takahiro Tanaka
    • Organizer
      UK Cosmo
    • Place of Presentation
      Portsmouth university, UK
    • Invited
  • [Presentation] Observational status and models of dark energy

    • Author(s)
      Shinji Tsujikawa
    • Organizer
      Sixth Aegean summer school: Quantum gravity and quantum cosmology
    • Place of Presentation
      Island of Naxos, Greece
    • Invited
  • [Presentation] 重力波物理の進展

    • Author(s)
      Takahiro Tanaka
    • Organizer
      日本物理学会
    • Place of Presentation
      弘前大学
    • Invited
  • [Presentation] Waterfall inflation in the hybrid model

    • Author(s)
      小玉英雄
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      弘前大学
  • [Presentation] Domain walls and gravitational waves after thermal inflation

    • Author(s)
      中山和則
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      弘前大学
  • [Presentation] Cosmology and GR limit of Horava-Lifshitz gravity

    • Author(s)
      Shinji Mukohyama
    • Organizer
      Workshop on Infrared Modifications of Gravity
    • Place of Presentation
      ICTP, Trieste, Italy
    • Invited
  • [Presentation] Parity violation in graviton non-Gaussianity

    • Author(s)
      Masato Nozawa
    • Organizer
      The 21st workshop on General Relativity and Gravitation in Japan
    • Place of Presentation
      東北大学
  • [Presentation] axionとCTA

    • Author(s)
      郡 和範
    • Organizer
      宇宙線研究所共同利用研究会「マルチメッセンジャー宇宙物理学とCTA」
    • Place of Presentation
      東京大学宇宙線研究所
  • [Presentation] Dark energy in the most general scalar-tensor theories with second-order field equations

    • Author(s)
      Shinji Tsujikawa
    • Organizer
      The Dark Universe Conference
    • Place of Presentation
      Heidelberg, Germany
    • Invited
  • [Presentation] Some issues about infrared divergences during inflation

    • Author(s)
      Takahiro Tanaka
    • Organizer
      Pre-Planckian Inflation
    • Place of Presentation
      Minnesota university, USA
    • Invited
  • [Presentation] Cosmological implications of Horava-Lifshitz gravity

    • Author(s)
      Shinji Mukohyama
    • Organizer
      Pre-Planckian Inflation
    • Place of Presentation
      Minnesota university, USA
    • Invited
  • [Presentation] Anisotropic Inflation and Statistical Symmetry Breaking in the CMB

    • Author(s)
      Jiro Soda
    • Organizer
      Pre-Planckian Inflation
    • Place of Presentation
      Minnesota university, USA
    • Invited
  • [Presentation] Cosmology and GR limit of projectable Horava-Lifshitz gravity

    • Author(s)
      Shinji Mukohyama
    • Organizer
      Gravity and Lorentz violations
    • Place of Presentation
      U of Cambridge, UK
    • Invited
  • [Presentation] Some issues about infrared divergences during inflation

    • Author(s)
      T. Tanaka
    • Organizer
      Mini-Workshop on cosmology
    • Place of Presentation
      APCTP, Pohan, Korea
    • Invited
  • [Presentation] BBN-CMB constraints on annihilating DM

    • Author(s)
      郡 和範
    • Organizer
      International Workshop, HEAP2011
    • Place of Presentation
      高エネルギー加速器研究機構
    • Invited
  • [Presentation] Hawking radiation of interacting fields

    • Author(s)
      T. Tanaka
    • Organizer
      Black Holes: New Horizons
    • Place of Presentation
      Banff, Canada
    • Invited
  • [Presentation] Black holes in (fake) supergravity

    • Author(s)
      Masato Nozawa
    • Organizer
      Black Holes: New Horizons
    • Place of Presentation
      Banff, Canada
    • Invited
  • [Presentation] Black Holes and GR limit of Horava-Lifshitz gravity

    • Author(s)
      Shinji Mukohyama
    • Organizer
      Black Holes: New Horizons
    • Place of Presentation
      Banff, Canada
    • Invited
  • [Presentation] Alternative Gravity Theories I: Ghost Condensation

    • Author(s)
      Shinji Mukohyama
    • Organizer
      Gravitation Focus Group Meeting & Workshop on Frontiers of Gravitation and Cosmology
    • Place of Presentation
      National Cheng Kung University, Taiwan
    • Invited
  • [Presentation] Alternative Gravity Theories II: Nonlinear Massive Gravity

    • Author(s)
      Shinji Mukohyama
    • Organizer
      Gravitation Focus Group Meeting & Workshop on Frontiers of Gravitation and Cosmology
    • Place of Presentation
      National Cheng Kung University, Taiwan
    • Invited
  • [Presentation] Alternative Gravity Theories III: Horava-Lifshitz Gravity

    • Author(s)
      Shinji Mukohyama
    • Organizer
      Gravitation Focus Group Meeting & Workshop on Frontiers of Gravitation and Cosmology
    • Place of Presentation
      National Cheng Kung University, Taiwan
    • Invited
  • [Presentation] Dark Matter indirect detection in terms of cosmic rays, gamma-ray, BBN and CMB

    • Author(s)
      郡 和範
    • Organizer
      The ECTP international conference on Primordial QCD Matter
    • Place of Presentation
      CATACT PYRAMIDS, Giza, Egypt
    • Invited
  • [Presentation] Cosmology and GR limit of Horava-Lifshitz gravity

    • Author(s)
      Shinji Mukohyama
    • Organizer
      Xth International Conference on Gravitation, Astrophysics and Cosmology
    • Place of Presentation
      Qui Nhon, Vietnam
    • Invited
  • [Presentation] 時空特異点と物理-時空特異点は解消可能かー?

    • Author(s)
      小玉英雄
    • Organizer
      「数理連携10の根本問題」シンポジウム
    • Place of Presentation
      理研和光キャンパス
    • Invited
  • [Presentation] Quest for the Ultimate Theory by Cosmophysics

    • Author(s)
      Hideo Kodama
    • Organizer
      Kyoto University COE symposium
    • Place of Presentation
      京都大学
    • Invited
  • [Presentation] On the adiabatic solution to the moduli problem

    • Author(s)
      中山和則
    • Organizer
      2012年冬の富山 素粒子宇宙論研究会
    • Place of Presentation
      富山大学
  • [Presentation] Axion Cosmology

    • Author(s)
      M. Kawasaki
    • Organizer
      The 4th GCOE International Symposium: Weaving Science Web beyond Particle-Matter Hierarchy
    • Place of Presentation
      東北大学(仙台)
  • [Presentation] ダークエネルギーの理論模型と観測からの選別

    • Author(s)
      Shinji Tsujikawa
    • Organizer
      第五回 超弦理論と宇宙 研究会
    • Place of Presentation
      大分県別府市
    • Invited
  • [Presentation] Reviews on Cosmology : Dark Matter and Radiation

    • Author(s)
      中山和則
    • Organizer
      基研研究会 標準模型を超えた素粒子理論へ向けて
    • Place of Presentation
      京都大学
    • Invited
  • [Presentation] CTA 報告32: CTA 時代におけるAxionの研究

    • Author(s)
      郡 和範
    • Organizer
      日本物理学会春の年会
    • Place of Presentation
      関西学院大学
  • [Presentation] 宇宙における高温、高密度、強磁場の現象

    • Author(s)
      郡 和範
    • Organizer
      日本物理学会春の年会春の年会、領域2シンポジウム「超強度場の物理」
    • Place of Presentation
      関西学院大学
    • Invited
  • [Presentation] A CP Safe Solution to the mu/Bmu Problem in Gauge Mediation with Hidden Gauge Symmetry

    • Author(s)
      中山和則
    • Organizer
      日本物理学会2012年年次大会
    • Place of Presentation
      関西学院大学
  • [Presentation] 最も一般的なスカラーテンソル理論における密度揺らぎの進化と暗黒エネルギー模型への応用

    • Author(s)
      Shinji Tsujikawa
    • Organizer
      日本物理学会2012年年次大会
    • Place of Presentation
      関西学院大学
  • [Remarks] 究極理論探査

    • URL

      http://research.kek.jp/people/hkodama/UTQuestHP/

URL: 

Published: 2015-05-28  

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