Coupled channel approach to strangeness S = -2 baryon-bayron interactions in Lattice QCD
High Energy Physics - Lattice
2015-11-18 v1
Abstract
The baryon-baryon interactions with strangeness S = -2 with the flavor SU(3) breaking are calculated for the first time by using the HAL QCD method extended to 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 CP-PACS/JLQCD Collaborations with a physical volume of 1.93 fm cubed and with m_pi/m_K = 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.
Keywords
Cite
@article{arxiv.1504.01717,
title = {Coupled channel approach to strangeness S = -2 baryon-bayron interactions in Lattice QCD},
author = {Kenji Sasaki and Sinya Aoki and Takumi Doi and Tetsuo Hatsuda and Yoichi Ikeda and Takashi Inoue and Noriyoshi Ishii and Keiko Murano},
journal= {arXiv preprint arXiv:1504.01717},
year = {2015}
}
Comments
17 pages, 15 figures