K N potential and Θ+in lattice QCD

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Abstract

We study the s-wave K N 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 mπ, = 871 MeV. The s-wave K N potentials are obtained from the BetheSalpeter 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 K N scattering phase shifts are calculated and compared with the experimental data.

Original languageEnglish
Pages (from-to)228-233
Number of pages6
JournalProgress of Theoretical Physics
Issue numberSUPPL. 186
DOIs
Publication statusPublished - 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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