KN Potential and Θ^+ in Lattice QCD(Exotic Hadrons,New Frontiers in QCD 2010-Exotic Hadron Systems and Dense Matter-)

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概要

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• We study the s-wave KN interactions in the isospin I=0,1 channels and associated exotic state Θ^+ from 2+1 flavor full lattice QCD simulation for relatively heavy quark mass corresponding to m_π=871MeV. The s-wave KN potentials are obtained from the Bethe-Salpeter amplitudes. Potentials in both channels reveal short range repulsions: Strength of the repulsion is stronger in the I=1 potential. The I=0 potential is found to have attractive well at mid range. The KN scattering phase shifts are calculated and compared with the experimental data.

• 2010-12-17

著者

• IKEDA Yoichi

  Nishina Center for Accelerator-Based Science, Institute for Physical and Chemical Research (RIKEN)

• Ikeda Yoichi

  Nishina Center For Accelerator-based Science Institute For Physical And Cemical Research (riken)

• IKEDA Yoichi

  Nishina Center for Accelerator-Based Science, Institute for Physical and Cemical Research (RIKEN)

関連論文

• Baryon-Baryon Interactions in the Flavor SU(3) Limit from Full QCD Simulations on the Lattice(Particles and Fields)
• KN Potential and Θ^+ in Lattice QCD(Exotic Hadrons,New Frontiers in QCD 2010-Exotic Hadron Systems and Dense Matter-)
• Structure of Λ(1405) and Threshold Behavior of πΣ Scattering(Nuclear Physics)

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