Neutral Pion Condensation and Alternating Layer Spin Model Including Isobar Δ(1232) in Hot Symmetric Nuclear Matter

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概要

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• Neutral pion condensation n the symmetric nuclear matter at finite temperature T is investigated with use of the Alternating Layer Spin model including explicitly the isobar Δ;(1232) degree of freedom. The free energy F is calculated in the Hartree-Fock approximation with an extended effective baryon-baryon interaction based on the g-0 forces. It is shown that the neutral-pion condensed phase is realized as a first-order phase transition with a broad coexistence region of density, for example, from 2.5 ρ_0 to 4.3 ρ_0 at T=30 MeV, ρ_0 being the normal density. Implications of the results in high-energy heavy ion collisions are also discussed on the basis of a simple fluid dynamical model.

• 理論物理学刊行会の論文
• 1988-01-25

著者

• Yoshikawa Hiroshi

  Department Of Biopharmaceutics Kyoto Pharmaceutical University:exploratory Development Laboratories

• KUNIHIRO Teiji

  Department of Physics, Kyoto University

• Yoshikawa H

  Department Of Biopharmaceutics Kyoto Pharmaceutical University:exploratory Development Laboratories

• Tatsumi T

  Kyoto Univ. Kyoto Jpn

• TAMAGAKI Ryozo

  Department of Physics, Kyoto University

• Kunihiro T

  Yukawa Institute For Theoretical Physics Kyoto University:(present Office)department Of Physics Kyot

• Kunihiro Teiji

  Department Of Physics Kyoto University

• Tatsumi T

  Department Of Physics Kyoto University

• TAKATSUKA Tatsuyuki

  College of Humanities and Social Sciences, Iwate University

• Tamagaki Ryozo

  Department Of Physcis Kyoto University

• Tamiya Kyuichiro

  Department Of Physics Kyoto University

• Kunihiro Teiji

  Department Of Natural Sciences Ryukoku University

• Takatsuka Tatsuyuki

  College Of Humanities And Social Sciences Iwate University

• Takatsuka Tatsuyuki

  College Of Humaniteis And Social Sciences Iwate University

• KUNIHIRO Teiji

  Department of Natural Sciences, Ryukoku University

• KUNIHIRO Teiji

  Department of National Sciences, Ryukoku University

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