期刊
NUCLEAR PHYSICS A
卷 928, 期 -, 页码 89-98出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysa.2014.05.014
关键词
N Omega interaction; N Omega potential; N Omega dibaryon; Lattice QCD
资金
- Department of Physics Bilateral International Exchange Program (BIEP), Kyoto University
- SPIRE (Strategic Program for Innovative Research
- RIKEN iTHES project
- [2004:20105001]
- [20105003]
- [25287046]
- [24740146]
- [23540321]
- Grants-in-Aid for Scientific Research [24740146, 26400281, 25287046] Funding Source: KAKEN
We investigate properties of the N(nucleon)-Omega(Omega) interaction in lattice QCD to seek for possible dibaryon states in the strangeness -3 channel. We calculate the N Omega potential through the equal-time Nambu-Bethe-Salpeter wave function in 2 + 1 flavor lattice QCD with the renormalization group improved Iwasaki gauge action and the nonperturbatively O(a) improved Wilson quark action at the lattice spacing a similar or equal to 0.12 fm on a (1.9 fm)(3) x 3.8 fm lattice. The ud and s quark masses in our study correspond to m(pi) = 875(1) MeV and m(K) = 916(1) MeV. At these parameter values, the central potential in the S-wave with the spin 2 shows attractions at all distances. By solving the Schrodinger equation with this potential, we find one bound state whose binding energy is 18.9(5.0) ((+12.1)(-1.8)) MeV, where the first error is the statistical one, while the second represents the systematic error. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据