In-Medium Pions and Partial Restoration of Chiral Symmetry : A Model-Independent Analysis(Hadron properties and chiral symmetry in medium, Chiral dynamics in nuclear medium, New Frontiers in QCD-Exotic Hadrons and Hadronic Matter-)
スポンサーリンク
概要
- 論文の詳細を見る
Exploiting operator relations in QCD, we derive a novel and model-independent formula relating the in-medium quark condensate <q^^-q>^* to the decay constant F^*_t and the wave function renormalization constant Z^* of the pion in the nuclear medium. Evaluating Z^* at low density from the iso-scalar pion-nucleon scattering data, it is concluded that the enhanced repulsion of the s-wave isovector pion-nucleus interaction observed in the deeply bound picnic atoms implies directly the reduction of the in-medium quark condensate. The knowlege of the in-medium pion mass is not necessary to reach this conclusion.
- 理論物理学刊行会の論文
- 2007-11-09
著者
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JIDO Daisuke
Yukawa Institute for Theoretical Physics, Kyoto University
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HATSUDA Tetsuo
Department of Physics, University of Tokyo
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KUNIHIRO Teiji
Department of Physics, Kyoto University
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Jido Daisuke
Yukawa Institute For Theoretical Physics Kyoto University
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Kunihiro Teiji
Yukawa Institute For Theoretical Physics Kyoto University
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Kunihiro Teiji
Yukawa Institute For Theoretical Physics Kyoto Univ.
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Hatsuda Tetsuo
Department Of Physics Kyoto University
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HATSUDA Tetsuo
Department of Physics, The University of Tokyo
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