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Phase Transition of High Density Matter in the Universe

Research Project

Project/Area Number 60302024
Research Category

Grant-in-Aid for Co-operative Research (A)

Allocation TypeSingle-year Grants
Research Field 物理学一般
Research InstitutionUniversity of Tokyo

Principal Investigator

SATO Katsuhiko  Univ. Tokyo, Faculty of Science, Associate Professor, 理学部, 助教授 (00111914)

Co-Investigator(Kenkyū-buntansha) TAMAGAKI Ryozo  Kyoto Univ. Faculty of Science, Professor, 理学部, 教授 (30027338)
SASAKI Misao  Hiroshima Univ., Res. Ins. Theor. Physics,Associate Professor, 理論物理学研究所, 助教授 (70162386)
UKAWA Akira  Tsukuba Univ., Physical Science, Associate Professor, 物理学系, 助教授 (10143538)
ITOH Naoki  Sophia Univ., Faculty of Science &Technology, Professor, 理工学部, 教授 (20103939)
ICHIMARU Setsuo  Univ. Tokyo, Faculty of Science, Professor, 理学部, 教授 (80010734)
細谷 暁夫  大阪大学, 理学部, 助教授 (80028258)
Project Period (FY) 1985 – 1987
Project Status Completed (Fiscal Year 1987)
Budget Amount *help
¥5,300,000 (Direct Cost: ¥5,300,000)
Fiscal Year 1987: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1986: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1985: ¥2,300,000 (Direct Cost: ¥2,300,000)
KeywordsCosmology / Early Universe / Supernova / Neutron Star / 相転移 / ニュートリノ / Highlights of Astronomy
Research Abstract

Results of the present research are summarized in the following three group. 1) Early Universe: A new method for quantum cosmology, in which the time is explicitly appeared and the probability is always positive definite, was formulated (Hosoya). Baryogenesis in the inflationary universe was investigated systematically. It was found that i) non thermal effects in the reheating stage play an important role, ii) in the chaotic inflationary scenario, baryon number domain structure might be formed (Sato). Evolution of density fluctuations which are formed by the phase transition in the early universe was investigated and the constraints on the model imposed from the homogeneity of 3k background radiation was made clear (Sasaki). Nucleosynthesis in the lepton-number asymmetric universe was investigated and it was found that more stringent constraints on the asymmetry is obtained.
2) Supernova and Neutron Star: Theoretical analysis of neutrino burst from the Supernova 1987A was made and it was found that i) the burst is surprisingly consistent with theoretical prediction, ii) The mass of neutron star just born might be 1.2-1.6M, iii) The mass of electron type neutrinos mast be smaller than 26 eV (Sato). Monte Calro simulation of finite temperature quark gluon plasma was made and it was found that the transition is of first order (UKawa).
3) High density plasma: Two phase separation (hydrogen and iron ions) in the center of the sun was investigated and it was found this separation does not occur (Ichimaru). Neutrino loss rate was calculated in detail on the basis of Weinberg-Salam theory (Itoh).

Report

(2 results)
  • 1987 Final Research Report Summary
  • 1986 Annual Research Report
  • Research Products

    (88 results)

All Other

All Publications (88 results)

  • [Publications] M. Takahara; K. Sato: Phys. Lett.156. 17-21 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Y. Suto; K. Sato; H. Kodama: Prog.Theor. Phys.73. 1151-1164 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] N. Terasaws; K. Sato: Astrophys.J.294. 9-16 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Y. Suto; H. Kodama; K. Sato: Phys. Lett.157. 259-262 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] N. Sato; H. Kodama; K. Sato: Prog. Theor. Phys.74. 405-408 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Y. Suto; H. Kodama; K. Sato: Month. Not. Roy. Astr. Soc.218. 637-649 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Takahara; K. Sato: Astrophysics and Space Science. 119. 45-49 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K. Iso, H. Kodama; K. Sato: Phys. Lett.169. 337-342 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Kawasaki; K. Sato: Phys. Lett.169B. 280-284 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K. Sato; M. Kiguchi: Highilights of Astronomy. 7. 635-640 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K. Sato; M. Takahara: Highlights of Astronomy. 7. 645-648 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Takahara; K. Sato: Phys. Lett.174B. 373-377 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Kawasaki; N. Terasawa; K. Sato: Phys. Lett.178B. 71-75 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] N. Terasawa; K. Sato: Phys. Lett.185. 412-416 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] J. Hokoyama; H. Kodama; K. Sato; N. Sato: Int. J. of Mod. Phys.A2. 1809-1828 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] J. Kawasaki; K. Sato: Phys. Lett.189B. 23-28 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K. Sato; H. Suzuki: Phys. Rev. Lett.58. 2722-2726 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Takahara; K. Sato: Modern Phys. Lett.A2. 293-298 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K. Sato; H. Suzuki: Phys. Lett.196B. 267-271 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] H. Suzuki; K. Sato: Pub. Astron. Soc. Japan. 39. 521-528 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] N. Terasawa; M. Kawasaki; K. Sato: Nucl. Phys.(1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] J. Yokoyama; K. Sato; H. Kodama: Pyhs.Lett.196B. 129-133 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] J. Yokoyama; K. Sato; H. Kodama: Prog. Theor. Phys.(1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Kawasaki; K. Sato: Pub. Astron. Soc. Japan. 39. 837-842 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] H. Suzuki; K. Sato: Prog. Theor. Phys.(1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Takahara and K. Sato: "Can Phase Transitions of Superdense Matter Strengthen Supernova Explosions.?" Phys. lett.156. 17-21 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Y. Suto, K. Sato and H. Kodama: "Dynamical Evolution of Isothermal Density Perturbations In the Early Universe" Prog. Theor. Phys.73. 1151-1164 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] N. Terasawa and K. sato: "Nucleosynthesis in The Low Entropy and Lepton Degenerate Universe" Astrophys. J.294. 9-16 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Y. Suto, H. Kodama and K. Sato: "Dynamical Role of Decaying Cold Dark Matter in Galaxy Formation" Phys. Lett.157. 259-262 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] N. Sato, H. Kodama and K. Sato: "Baryogenisis in The Inflationary Universe" Prog. Theor. Phys.74. 405-408 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Y. Suto, H. Kodama and K. Sato: "Cosmology With Unstable Dark Matter" Month. Not. Roy. Astr. Soc.218. 637-649 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Takahara and K. Sato: "Phase Transitions of Superdense Matter and Supernova Explosions" Astrophysics and Space Science. 119. 45-49 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K. Iso, H. Kodama and K. Sato: "Cosmological Quark-hadron Phase transition and formation of Isothermal Density Fluctuations" Phys. Lett.169. 337-342 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Kawasaki and K. Sato: "The Effect of Radiative Decay of massive Particles on the Spectrum of the Microwave background Radiation" Phys. Lett.169B. 280-284 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K. Sato and M. Kiguchi: "Effects of Angular momentum on Supernova Explosion and Stability of Rapidly Rotating Stellar cores" Highlights of Astronomy. 7. 635-640 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K. Sato and M. Takahara: "Phase Transitions of Superdense Matter and Supernova Explosions" Highlights of Astronomy. 7. 645-648 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Takahara and K. Sato: "Spernova Explosions and Constraints on Mass and Lifetime of Heavy Neutrinos" Phys. Lett.174B. 373-377 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Kawasaki, N. Terasawa and K. Sato: "Radiative Decay of Massive Neutrinos and the Photodestruction of Light Elements" Phys. Lett.178B. 71-75 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] N. Terasawa and K. Sato: "Nonradiative decay of neutrinos and Primordial Nucleosythesis" Phys. lett.185. 412-416 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] J. Yokoyama, h. Kodama, K. Sato and N. Sato: "Baryogenesis in the Late Reheating Phase of the Inflationary Universe" Int. J. of Mod. Phys.A2. 1809-1828 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Kawasaki and K. Sato: "Radiative decay of Gravitinos" Phys. Lett.189B. 23-28 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K. Sato and H. Suzuki: "Analysis of the Neutrino Burst from Supernova 1987A in the Large Magelanic Cloud" Phys. Rev. Lett.58. 2722-2726 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Takahara and K. Sato: "Constraints on the Mass and Lifetime of Heavy Neutrinos from the Supernova 1987A in the Large Magellanic Cloud" Modern Phys. Lett.A2. 293-298 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K. Sato and H. Suzuki: "Total Energy of Neutrino Burst from the supernova 1987A and The Mass of Neutron Star Just Born" Phys. Lett.196B. 267-271 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] H. Suzuki and K. Sato: "Time profile of Neutrino Burst from the LMC Supernova 1987A" Pub. Astron. Soc. Japan. 39. 521-528 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] J. Yokoyama, K. Sato and H. Kodama: "Baryogenesis in the Chaotic Inflationary Cosmology" Phys. Lett.196B. 129-133 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] J. Yokoyama, K. Sato and H. Kodama: "Baryogenesis through nonequilibrium process in the Inflationary universe" Prog. Theor. Phys.(1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Kawasaki and K. Sato: "Radiative Decay of Weekly Interacting Massive Particles and the Destortion of the Cosmic Background Radiation" Pub. Astron. Soc. Japan. 39. 837-842 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] H. Suzuki and K. Sato: "Statistical Analysis of the Neutrino Burst from SN 1987A" Prog. Theor. Phys.(1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] N. Terasawa, M. Kawasaki and K. Sato: "Radiative Decay of Neutrinos and Primordial nucleosynthesis" Nucl. Phys.(1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K.Sato: 7. 645-648 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] K.Sato: 7. 635-639 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] K.Sato: Proceedings of the Neutrono '86 Conference. 252 (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] M.Takahara&K.Sato: Phys.Lett. 174B. 373 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] M.Kawasaki &.K.Sato: Phys.Lett.169B. 280 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] N.Terasawa &.K.Sato: Phys.Lett.

    • Related Report
      1986 Annual Research Report
  • [Publications] Hiroshi IYETOMI;Setsuo ICHIMARU: Phys.Rev.A. 34. 433-439 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] Xin-Zhong YAN;Setsuo ICHIMARU: Phys.Rev.A. 34. 2167-2172 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] Xin-Zhong YAN;Setsuo ICHIMARU: Phys.Rev.A. 34. 2173-2176 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] Hiroshi IYETOMI;Setsuo ICHIMARU: Phys.Rev.A. 34. 3203-3209 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] 家富洋,伊藤直紀,一丸節夫: 日本物理学会誌. 41. 802-812 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] Setsuo ICHIMARU;Hiroshi IYETOMI;Shigenori TANAKA: Physics Reports. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 郷田直輝,佐々木節: Prog.Theor.Phys.76. 1016-1035 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] 佐々木節: Prog.Theor.Phys.76. 1036-1046 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] 小玉英雄,佐々木節: Int.J.of Mod.Phys.A.

    • Related Report
      1986 Annual Research Report
  • [Publications] M.Hashimoto;K.Nomoto;K.Arai;K.Kaminisi: Astrophysical Journal. 307. 687-693 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] K.Arai;K.Kaminisi: Physics Reports of the Kumamoto University. 7. 101-106 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] K.Kaminishi;K.Arai: Astrophysics and Space Science. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 木口勝義,成田真二,観山正見,林忠四郎: The Astrophysical Journal. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 佐藤勝彦,木口勝義: Highlights of Astronomy. 635-639 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] T.Muto;T.Tatsumi: Prog.Theor.Phys.(1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] T.Muto;T.Tatsumi: Prog.Theor.Phys.(1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] A.HOSOYA;L.G.Jenson;J.A.Stein-Schabos: Nucl.Phys.B.

    • Related Report
      1986 Annual Research Report
  • [Publications] A.HOSOYA: Essays in Honor of the 60th Birthday of Professor Yoshio Yamaguchi.

    • Related Report
      1986 Annual Research Report
  • [Publications] Y.Kohyama;N.Itoh;H.Munakata: Astrophys J.310. 815-819 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] M.Nakagawa;Y.Kohyama;N.Itoh: Astrophys J. 63. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] H.Munakata;Y.Kohyama;N.Itoh: Astrophys.J.316. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] N.Itoh;Y.Kohyama;H.Takeuchi: Astrophys.J.(1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 高塚龍之: 原子核研究. 31. 75-91 (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] T.Takatsuka;R.Tamagaki: Progress of Theoretical Physics. 77. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] M.Fukugita;A.Ukawa: Physical Review Letters. 57. 503-506 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] M.Fukugita;Y.Oyanagi;A.Ukawa: Physical Review Letters. 57. 953-956 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] M.Fukugita;S.Ohta;A.Ukawa: Physical Review Letters. 57. 1974-1977 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] M.Fukugita;Y.Oyanagi;A.Ukawa: preprint RIFP-686. (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] M.Fukugita;S.Ohta;Y.Oyanagi;A.Ukawa: preprint KEK-TH-148. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] T.Takatsuka and R.Tamagaki: Progress of Theoretical Physics. 77. 362-375 (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 玉垣良三: 原子核研究. 31. 171-178 (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 玉垣良三: "高密度核物質 物理学最前線第15巻" 83 (1986)

    • Related Report
      1986 Annual Research Report

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Published: 1987-03-31   Modified: 2016-04-21  

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