Study of kaon-nucleon systems with chiral dynamics

2015 Fiscal Year Final Research Report

• Project/Area Number: 24740152
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Kyoto University (2013-2015); Tokyo Institute of Technology (2012)
• Principal Investigator: Hyodo Tetsuo 京都大学, 基礎物理学研究所, 助教 (60539823)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: ハドロン構造 / ストレンジネス核物理 / エキゾチックハドロン

Outline of Final Research Achievements

In this study, with the analysis of chiral effective theories, the novel structure of the Lambda(1405) in the antikaon-nucleon systems is clarified. The main results are (1) the establishment of the hadron molecule structure of Lambda(1405) and the construction of the realistic Kbar N interaction, (2) the generalization of the method to determine the hadron compositeness to unstable states, and (3) the extension to the heavy quark systems. It is shown that the hadron molecule structures ubiquitously emerge in a wide range of fields including the strangeness systems, and the technique to experimentally determine the internal structure in a model-independent manner is developed.

Free Research Field

原子核理論