Coupled-channel approach to strangeness S = -2 baryon-bayron interactions in lattice QCD

on behalf of the HAL QCD Collaboration

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Abstract

Baryon-baryon interactions with strangeness S = -2 with flavor SU(3) breaking are calculated for the first time by using the HAL QCD method extended to the coupled-channel system in lattice QCD. The potential matrices are extracted from the Nambu-Bethe-Salpeter wave functions obtained by the 2 + 1-flavor gauge configurations of the CP-PACS/JLQCD Collaborations with a physical volume of (1.93 fm)3 and with mφ/mk = 0.96, 0.90, 0.86. The spatial structure and the quark mass dependence of the potential matrix in the baryon basis and in the SU(3) basis are investigated.

Original languageEnglish
Article number113B01
JournalProgress of Theoretical and Experimental Physics
Volume2015
Issue number11
DOIs
Publication statusPublished - Nov 2015

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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