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

被引：43

作者：

Sasaki, Kenji ^{[1
]}

Aoki, Sinya ^{[1
,2
]}

Doi, Takumi ^{[3
]}

Hatsuda, Tetsuo ^{[3
]}

Ikeda, Yoichi ^{[3
]}

Inoue, Takashi ^{[4
]}

Ishii, Noriyoshi ^{[5
]}

Murano, Keiko ^{[5
]}

机构：

[1] Univ Tsukuba, Ctr Computat Sci, Tsukuba, Ibaraki 3058577, Japan

[2] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan

[3] RIKEN, Nishina Ctr, Theoret Res Div, Wako, Saitama 3510198, Japan

[4] Nihon Univ, Coll Bioresource Sci, Fujisawa, Kanagawa 2520880, Japan

[5] Osaka Univ, RCNP, Osaka 5670047, Japan

来源：

PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS | 2015年 / 2015卷 / 11期

关键词：

HADRON INTERACTIONS; SCATTERING;

D O I：

10.1093/ptep/ptv144

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 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.

引用

页数：18

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