S-wave meson-baryon potentials with strangeness from Lattice QCD

Details S-wave meson-baryon potentials with strangeness from Lattice QCD S-wave meson-baryon potentials with strangeness from Lattice QCD

2011-11-11

arxiv.org/abs/1111.2663v1

Physics

High Energy Physics

High Energy Physics - Lattice

Prepared for The XXIX International Symposium on Lattice Field Theory (Lattice 2011), July 10-16, 2011, Squaw Valley, Lake Tah

Scientific paper

We study the s-wave I=2 \pi \Sigma and I=1 KN interactions from 2+1 flavor full lattice QCD simulation for relatively heavy quark mass corresponding to m_{\pi}=700 MeV. The s-wave meson-baryon potentials are obtained from the Nambu-Bethe-Salpeter amplitudes. Potentials in both channels reveal short range repulsions, which suggest the importance of the Pauli blocking effect. The I=1 KN scattering phase shifts are calculated and compared with the existing experimental data.

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