1996 Fiscal Year Annual Research Report

高温高密度における非摂動現象

Research Project

Project/Area Number	08304024
Research Category	Grant-in-Aid for Scientific Research (A)
Section	総合
Research Institution	Hiroshima University
Principal Investigator	宮村修広島大学, 理学部, 教授 (80029511)
Co-Investigator(Kenkyū-buntansha)	小平治郎広島大学, 理学部, 助教授 (40127080) 土岐博大阪大学, 核物理センター, 教授 (70163962) 中村純山形大学, 教育学部, 教授 (30130876) 国広梯二龍谷大学, 理工学部, 教授 (20153314) 松井哲男京都大学, 基礎物理学研究所, 教授 (00252528)
Keywords	量子場の非摂動現象 / 量子色力学 / 閉じこめ / カイラル転移 / 有限温度・密度の場の理論 / クオーク・ハドロン転移
Research Abstract	1.高温・高密度状態の場の理論について以下の研究を行った。熱的場の理論のピンチ技法を適用して計算法の改善を行った。(佐々木)相構造解析手法である繰り込み群理論にたいして、局所近似解の包絡線という幾何学理論からの定式化を行い,より広い理論的展望を与えた。(国広)高温での高精度の場のシミュレーションを目指して、非等方格子場理論の基礎研究を行った。(橋本)高密度場の理論的取扱いに関しては、凝縮場の自由度を取り出すBogoliubov変換の性質を分析特異性が現れる場合を明らかにした。(岩崎) 2.量子色力学(QCD)の高温・高密度状態に関して以下の研究を行った。閉じこめの基本要素であるモノボールとU_1破れの起源であるインスタントンの力学的関係を理論的、並びに格子QCDシミュレーションにより明らかにした。(宮村等、土岐等)閉じこめ相におけるグル-オンの伝播関数を大規模格子シミュレーションにより解析し、特異な構造を見いだした。(中村等)微視的過程であるハドロン間相互作用については、核子スピン構造関数の理論(小平)、位相解による中間子-核子散乱の理論(斉藤等)、U_1破れを取り入れたη中間子崩壊の理論(岡等)、核媒質中での真空偏極の理論(香村等)を提案した。また、第一原理計算を目指して最大規模格子によるシミュレーションを行った。(大田等) 3.高エネルギー原子核衝突により形成される高温・高密度状態に関して、中間子場の時間発展の量子論を提案した。また、カイラル転移や閉じこめ転移が引き起こす諸現象についての理論的探索を行った。(松井等)

Research Products

(29 results)

All Other

All Publications (29 results)

[Publications] H. Suganuma他: "Evidence of strong correlation between instanton and QCD-monopoles on SU (2) lattice" Nuclear Physics B (Proc. Suppl.). 47. 302-306 (1996)
[Publications] O. Miyamura, T. Origuchi: "Pseudoscaler mesons in a monopole field of SU (2) lattice gauge system" Nuclear Physics B (Proc. Suppl.). 47. 314-318 (1996)
[Publications] T. Suzuki他: "Monopoles and hadron spectrum in quenched QCD" Nuclear Physics B (Proc. Suppl.). 47. 374-377 (1996)
[Publications] M. Fujisaki他: "Strange and charmed hadron spectroscopy on a 32^3×48 lattice at β=6.3" Nuclear Physics B. 460. 413-426 (1996)
[Publications] M. Fujisaki他: "Finite tempeature gauge theory on anisotropic lattice" Nuclear Physics B (Proc. Suppl.). 53. 426-428 (1997)
[Publications] H. Suganuma他: "Cofinement and topological charge in the abelian gauge of QCD" Nuclear Physics B (Proc. Suppl.). 53. 528-530 (1997)
[Publications] M. Oka: "QCD analysis of the H dibaryon" Hyperfine Interactions. 103. 275-282 (1996)
[Publications] Y. Nemoto: "η→π^0γγ decay in the three flavor NJL model" Physical Review D. 54. 6777-6781 (1996)
[Publications] M. Takizawa: "Strong U_A (1) breaking in radiative η decays" Physical Review D. 55. (1997)
[Publications] M. Iwasaki: "Note on improper Bogoliubov transformation" Progress of Theoretical Physics. 96. 1043-1048 (1996)
[Publications] M. Passera他: "Gluon self-energy in the Coulomb and temporal axial gauges via pinch technique" Physical Review D. 54. 5763-5776 (1996)
[Publications] H. -S. Roh, T. Matsui: "Chiral phase transition at finite temperatures in linear sigma model Gauge-independent thermal β function in Yang-Mills theory via pinchi thechnique" Nuclear Physics B. 472. 271-289 (1996)
[Publications] M. Fujisaki他: "Search for effective lattice action of pure QCD" Nuclear Physics B (Proc. Suppl.). 53. 938-941 (1997)
[Publications] T. Kunihiro: "Renormalization group method applied to aymptotic analysis of vector field" Progress of Theoretical Physics. (in press). (1997)
[Publications] Y. Kondo他: "Meson-Baryon Scattering in Bound-State Approach to Strangeness in the Skyrme-Soliton Model" Nuclear Physics A. 609. 501-518 (1996)
[Publications] T. Nishikawa他: "QCD Sum Rules and Electromagnetic Polarizabilities of Nucleon" Nuclear Physics A. (in press).
[Publications] T. Nagata他: "Vacuum polarization and meson exchange interactions in finite nuclei" Nuclear Physics A. 601. 333-348 (1996)
[Publications] T. Kohmura: "Vacuum polarization and meson exchange interactions in finite nuclei" XIV ICPN. Proceedigs. 617-620 (1996)
[Publications] K. Sasaki: "Gauge-independent resummed gluon self-energy in hot QCD" Nuclear Physics B. (in press).
[Publications] T. Matsui: "Dense matter in nuclear collisions" Journal of Korean Physical Society. 29. 5309-5319 (1996)
[Publications] D. Vautherin, T. Matsui: "Boost invariant quantum evolution of a meson field at large proper times" Physical Review D. (in press).
[Publications] T. Kim, S. Ohta: "Quenched KS light hadron mass at β=6.5 on 64×48^3 lattice" Nuclear Physics B (Proc. Suppl.). 53. 199-202 (1997)
[Publications] H. Aiso他: "Towards understanding of confinement of gluons" Nuclear Physics B (Proc. Suppl.). 53. 570-573 (1997)
[Publications] H. Aiso他: "Gauge Fixing and Gluon Propagators" Prog. Theor. Phys. Suppl.122. 123-128 (1996)
[Publications] A. Nakamura他: "Gluon Propagators and Confinement" Proc. Confinement 95, World Scientific,. 90-95 (1996)
[Publications] X. -H. Guo, T. Muta: "Ingur-Weise function for Λ(b)→Λ(c) in B-S approach" Physical Review D. 54. 4629-4634 (1996)
[Publications] X. -H. Guo, T. Muta: "B-S equation analysis of heavy baryon decays" Modern Physics Letters. A11. 1523-1528 (1996)
[Publications] T. Inagaki他: "Curvature induced dynamical symmetry restoration in Einstein Universe (R【cross product】S^<D-1>)" Modern Physics Letters. A11. 939-948 (1996)
[Publications] J. Kodaira他: "QCD corrections to nucleon spin structure function G_2 (x, Q^2)" Physics Letters B. 387. 855-860 (1996)

1996 Fiscal Year Annual Research Report

高温高密度における非摂動現象

Principal Investigator

宮村 修 広島大学, 理学部, 教授 (80029511)

Research Products

[Publications] H. Suganuma他: "Evidence of strong correlation between instanton and QCD-monopoles on SU (2) lattice" Nuclear Physics B (Proc. Suppl.). 47. 302-306 (1996)

[Publications] O. Miyamura, T. Origuchi: "Pseudoscaler mesons in a monopole field of SU (2) lattice gauge system" Nuclear Physics B (Proc. Suppl.). 47. 314-318 (1996)

[Publications] T. Suzuki他: "Monopoles and hadron spectrum in quenched QCD" Nuclear Physics B (Proc. Suppl.). 47. 374-377 (1996)

[Publications] M. Fujisaki他: "Strange and charmed hadron spectroscopy on a 32^3×48 lattice at β=6.3" Nuclear Physics B. 460. 413-426 (1996)

[Publications] M. Fujisaki他: "Finite tempeature gauge theory on anisotropic lattice" Nuclear Physics B (Proc. Suppl.). 53. 426-428 (1997)

[Publications] H. Suganuma他: "Cofinement and topological charge in the abelian gauge of QCD" Nuclear Physics B (Proc. Suppl.). 53. 528-530 (1997)

[Publications] M. Oka: "QCD analysis of the H dibaryon" Hyperfine Interactions. 103. 275-282 (1996)

[Publications] Y. Nemoto: "η→π^0γγ decay in the three flavor NJL model" Physical Review D. 54. 6777-6781 (1996)

[Publications] M. Takizawa: "Strong U_A (1) breaking in radiative η decays" Physical Review D. 55. (1997)

[Publications] M. Iwasaki: "Note on improper Bogoliubov transformation" Progress of Theoretical Physics. 96. 1043-1048 (1996)

[Publications] M. Passera他: "Gluon self-energy in the Coulomb and temporal axial gauges via pinch technique" Physical Review D. 54. 5763-5776 (1996)

[Publications] H. -S. Roh, T. Matsui: "Chiral phase transition at finite temperatures in linear sigma model Gauge-independent thermal β function in Yang-Mills theory via pinchi thechnique" Nuclear Physics B. 472. 271-289 (1996)

[Publications] M. Fujisaki他: "Search for effective lattice action of pure QCD" Nuclear Physics B (Proc. Suppl.). 53. 938-941 (1997)

[Publications] T. Kunihiro: "Renormalization group method applied to aymptotic analysis of vector field" Progress of Theoretical Physics. (in press). (1997)

[Publications] Y. Kondo他: "Meson-Baryon Scattering in Bound-State Approach to Strangeness in the Skyrme-Soliton Model" Nuclear Physics A. 609. 501-518 (1996)

[Publications] T. Nishikawa他: "QCD Sum Rules and Electromagnetic Polarizabilities of Nucleon" Nuclear Physics A. (in press).

[Publications] T. Nagata他: "Vacuum polarization and meson exchange interactions in finite nuclei" Nuclear Physics A. 601. 333-348 (1996)

[Publications] T. Kohmura: "Vacuum polarization and meson exchange interactions in finite nuclei" XIV ICPN. Proceedigs. 617-620 (1996)

[Publications] K. Sasaki: "Gauge-independent resummed gluon self-energy in hot QCD" Nuclear Physics B. (in press).

[Publications] T. Matsui: "Dense matter in nuclear collisions" Journal of Korean Physical Society. 29. 5309-5319 (1996)

[Publications] D. Vautherin, T. Matsui: "Boost invariant quantum evolution of a meson field at large proper times" Physical Review D. (in press).

[Publications] T. Kim, S. Ohta: "Quenched KS light hadron mass at β=6.5 on 64×48^3 lattice" Nuclear Physics B (Proc. Suppl.). 53. 199-202 (1997)

[Publications] H. Aiso他: "Towards understanding of confinement of gluons" Nuclear Physics B (Proc. Suppl.). 53. 570-573 (1997)

[Publications] H. Aiso他: "Gauge Fixing and Gluon Propagators" Prog. Theor. Phys. Suppl.122. 123-128 (1996)

[Publications] A. Nakamura他: "Gluon Propagators and Confinement" Proc. Confinement 95, World Scientific,. 90-95 (1996)

[Publications] X. -H. Guo, T. Muta: "Ingur-Weise function for Λ(b)→Λ(c) in B-S approach" Physical Review D. 54. 4629-4634 (1996)

[Publications] X. -H. Guo, T. Muta: "B-S equation analysis of heavy baryon decays" Modern Physics Letters. A11. 1523-1528 (1996)

[Publications] T. Inagaki他: "Curvature induced dynamical symmetry restoration in Einstein Universe (R【cross product】S^<D-1>)" Modern Physics Letters. A11. 939-948 (1996)

[Publications] J. Kodaira他: "QCD corrections to nucleon spin structure function G_2 (x, Q^2)" Physics Letters B. 387. 855-860 (1996)

宮村修広島大学, 理学部, 教授 (80029511)