Hadronic Molecular States Characterized by Compositeness of Resonances

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Other Title
  • 共鳴状態の複合性で特徴づけるハドロン分子状態
  • 最近の研究から 共鳴状態の複合性で特徴づけるハドロン分子状態
  • サイキン ノ ケンキュウ カラ キョウメイ ジョウタイ ノ フクゴウセイ デ トクチョウズケル ハドロン ブンシ ジョウタイ

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Abstract

<p>Hadronic molecules are the new form of matter induced by the strong interaction. However, identification of the hadronic molecules involves several subtle difficulties such as the model dependence and the interpretation of the resonance wave function. To overcome these difficulties, we use the compositeness to characterize the internal structure of hadrons, and generalize the weak-binding relation for unstable resonances. It is quantitatively shown that the structure of the Λ(1405) resonance is dominated by the molecular state of an antikaon and a nucleon.</p>

Journal

  • Butsuri

    Butsuri 75 (8), 478-483, 2020-08-05

    The Physical Society of Japan

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