1999 Fiscal Year Annual Research Report

超対称複合模型と宇宙初期状態

Research Project

Project/Area Number	11640280
Research Institution	Hiroshima University
Principal Investigator	牟田泰三広島大学, 理学部, 教授 (80025353)
Co-Investigator(Kenkyū-buntansha)	大野木哲也広島大学, 理学部, 助手 (70211802) 両角卓也広島大学, 理学部, 講師 (20253049) 小平治郎広島大学, 理学部, 助教授 (40127080) 稲垣知宏広島大学, 総合情報処理センター, 助手 (80301307) 山本一博広島大学, 理学部, 助手 (50284154)
Keywords	超対称性 / 複合模型 / 宇宙初期 / 有限温度 / 多次元宇宙
Research Abstract	超対称性に基づく素粒子の模型は、素粒子の統一理論の有力な候補である。本研究計画では、超対称標準理論のヒッグス場をフェルミ粒子対の複合場だと考えたとき、宇宙初期におけるインフレーションシナリオ等がどのような影響を受けるかを調べる。宇宙初期状態(有限曲率時空、有限温度、有限密度)における超対称複合場理論の相構造の研究は、研究協力者の協力を得ながら進めた。その結果、カイラル対称性が動的に破れることを確かめ、有限温度及び有限曲率の下で、この対称性の破れは一次の相転移として起こりうることを見いだした。この研究結果をもとにして、インフレーション期の相転移によるストリング生成の可能性について研究した(牟田、山本)。また、有限温度での量子電気力学の相構造を、Schwinger-Dyson方程式の数値解を用いて詳細に調べた(牟田、稲垣)。他方、多次元時空の効果がTeV領域で実験的に検証できる可能性を調べるために、多次元フェルミオンが4次元フェルミオンにどのような影響を与えるかについて、モデルを用いて具体的に調べ、宇宙初期への応用の可能性について検討した。

Research Products
(19 results)

All Other

All Publications (19 results)

[Publications] T.Muta: "Pattern of Chiral symmetry restoration at finite temperature in a supersymmetric composite model"Phys.Lett.B. 451(3・4). 343-348 (1999)
[Publications] J.Hashida: "Model of Curvature-Induced Phase Transition in the Inflationary Universe"Phys.Rev.D. 59(10). 101302-1-101302-4 (1999)
[Publications] T.Muta: "Path-Integral Formulation of Casimir Effects in supersymmetric Quantum Electrodynamics"Mod.Phys.Lett.A. 14(16). 1033-1042 (1999)
[Publications] T.Muta: "Dynamical Fermion Masses under the Influence of Kaluza-Klein Fermions in Extra Dimensions"Mod.Phys.Lett.A. (in press). (2000)
[Publications] C.S.Kim: "New physics effects in B→K^*VV decays"Phys.Rev.D. 60. 094007 (1999)
[Publications] M.Harada: "Perguin diagrams in ΔI=1/2 rule and ε^1/ε with σ models"Phys.Rev.D. (in press). (2000)
[Publications] J.Hashida: "Neutrino mixing in the seasaw-model"Progress of Theoretical Physics. 103(2). 379-391 (2000)
[Publications] C.S.Kim: "Azimuthal angle distribution in B→K^*(Kπ)l^+l^- at low invariant M(l^+l^-)region"Phys.Rev.D. (in press). (2000)
[Publications] S.Aoki: "Nonperturbative Determination of Quark Masses in Quenched Lattice QCD with the Kogut-susskind Fermion Action"Phys.Rev.Lett. 82. 4392-4395 (1999)
[Publications] K.-I..Ishikawa: "aαs matching coefficients for the ΔB=2 operators in the lattice static theory"Phys.Rev.D. 60. 034501-1-034501-8 (1999)
[Publications] S.Hashimoto: "Lattice NRQCD calculation of the B^0-B^0 mixing parameter B_B"Phys.Rev.D. 60. 094503-1-094503-10 (1999)
[Publications] K.Yamamoto: "Two-point correlation functions of high-redshift objects:an explicit formulation on a light-cone hypersurface"The Astrophysical journal. 517. 1-12 (1999)
[Publications] H.Nishioka: "Two-point Function of High-Redshift Objects on a hight Cone:Effect of the Linear Redshift-Space Distortion"The Astrophysical Journal. 520. 426-436 (1999)
[Publications] Y.Sudo: "Deciphering cosmological information from redshift surveys of high-z objects-the cosmological light-cone effect and redshift-space distortion"Progress of Theoretical Physics Supplement. 133. 183-210 (1999)
[Publications] K.Yamamoto: "Cosmological Light-Cone Effects on the Power Spectrum of Galaxies and Quasars in Wide-Field Redshift Surveys"The Astrophysical Journal. 527. 488-497 (1999)
[Publications] Y.Sudo: "Two-point correlation functions of X-ray Selected clusters of galaxies:theoretical predictions for flux-limited surveys"The Astrophysical Journal. 534(in press). (2000)
[Publications] J.Hashida: "Curvature-induced Phase Transitions in the Inflationary Universe-Supersymmetric Numbu-Jona-Lasinio model in de Sitter spacetime-"Phys.Rev.D. (in press). (2000)
[Publications] H.Nishioka: "Redshift-space distortions of the power spectrum of Cosmological Objects on a Light Come:Explicit Formations and Theoretical Implications"The Astrophysical Journal Supplement. 128(in press). (2000)
[Publications] Y.Sudo: "The Light-Cone Effects on the Clustering Statistics in the Cosmological Redshift Space"The Astronomical Society of Japan. (in press). (2000)

1999 Fiscal Year Annual Research Report

超対称複合模型と宇宙初期状態

Principal Investigator

牟田 泰三 広島大学, 理学部, 教授 (80025353)

Research Products

[Publications] T.Muta: "Pattern of Chiral symmetry restoration at finite temperature in a supersymmetric composite model"Phys.Lett.B. 451(3・4). 343-348 (1999)

[Publications] J.Hashida: "Model of Curvature-Induced Phase Transition in the Inflationary Universe"Phys.Rev.D. 59(10). 101302-1-101302-4 (1999)

[Publications] T.Muta: "Path-Integral Formulation of Casimir Effects in supersymmetric Quantum Electrodynamics"Mod.Phys.Lett.A. 14(16). 1033-1042 (1999)

[Publications] T.Muta: "Dynamical Fermion Masses under the Influence of Kaluza-Klein Fermions in Extra Dimensions"Mod.Phys.Lett.A. (in press). (2000)

[Publications] C.S.Kim: "New physics effects in B→K^*VV decays"Phys.Rev.D. 60. 094007 (1999)

[Publications] M.Harada: "Perguin diagrams in ΔI=1/2 rule and ε^1/ε with σ models"Phys.Rev.D. (in press). (2000)

[Publications] J.Hashida: "Neutrino mixing in the seasaw-model"Progress of Theoretical Physics. 103(2). 379-391 (2000)

[Publications] C.S.Kim: "Azimuthal angle distribution in B→K^*(Kπ)l^+l^- at low invariant M(l^+l^-)region"Phys.Rev.D. (in press). (2000)

[Publications] S.Aoki: "Nonperturbative Determination of Quark Masses in Quenched Lattice QCD with the Kogut-susskind Fermion Action"Phys.Rev.Lett. 82. 4392-4395 (1999)

[Publications] K.-I..Ishikawa: "aαs matching coefficients for the ΔB=2 operators in the lattice static theory"Phys.Rev.D. 60. 034501-1-034501-8 (1999)

[Publications] S.Hashimoto: "Lattice NRQCD calculation of the B^0-B^0 mixing parameter B_B"Phys.Rev.D. 60. 094503-1-094503-10 (1999)

[Publications] K.Yamamoto: "Two-point correlation functions of high-redshift objects:an explicit formulation on a light-cone hypersurface"The Astrophysical journal. 517. 1-12 (1999)

[Publications] H.Nishioka: "Two-point Function of High-Redshift Objects on a hight Cone:Effect of the Linear Redshift-Space Distortion"The Astrophysical Journal. 520. 426-436 (1999)

[Publications] Y.Sudo: "Deciphering cosmological information from redshift surveys of high-z objects-the cosmological light-cone effect and redshift-space distortion"Progress of Theoretical Physics Supplement. 133. 183-210 (1999)

[Publications] K.Yamamoto: "Cosmological Light-Cone Effects on the Power Spectrum of Galaxies and Quasars in Wide-Field Redshift Surveys"The Astrophysical Journal. 527. 488-497 (1999)

[Publications] Y.Sudo: "Two-point correlation functions of X-ray Selected clusters of galaxies:theoretical predictions for flux-limited surveys"The Astrophysical Journal. 534(in press). (2000)

[Publications] J.Hashida: "Curvature-induced Phase Transitions in the Inflationary Universe-Supersymmetric Numbu-Jona-Lasinio model in de Sitter spacetime-"Phys.Rev.D. (in press). (2000)

[Publications] H.Nishioka: "Redshift-space distortions of the power spectrum of Cosmological Objects on a Light Come:Explicit Formations and Theoretical Implications"The Astrophysical Journal Supplement. 128(in press). (2000)

[Publications] Y.Sudo: "The Light-Cone Effects on the Clustering Statistics in the Cosmological Redshift Space"The Astronomical Society of Japan. (in press). (2000)

牟田泰三広島大学, 理学部, 教授 (80025353)