期刊
PHYSICAL REVIEW D
卷 100, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.100.034008
关键词
-
资金
- National Natural Science Foundation of China [11747140, 11847024]
- Jiangsu Province Natural Science Foundation [BK20180738]
- Nanjing University of Posts and Telecommunications Science Foundation [NY218132, NY219032]
- Jiangsu Province Hundred Talents Plan for Professionals
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico-CNPq [305894/2009-9, 464898/2014-5]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo-FAPESP [2013/01907-0, 2015/21550-4]
- U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357]
- Ministerio de Economia Industria y Competitividad (MINECO) [FPA2017-86380-P]
- University of Huelva, Huelva-Spain
- University of Pablo de Olavide, Seville-Spain
Using a confining, symmetry-preserving regularization of a vector x vector contact interaction, we compute the spectra of ground-state pseudoscalar and vector of (f (g) over bar) mesons, scalar and axial-vector (fg) diquarks, and J(P) = 1/2(+), 3/2(+) (fgh) baryons, where f, g, h is an element of {u, d, s, c, b}. The diquark correlations are essentially dynamical and play a key role in formulating and solving the three-valence-quark baryon problems. The baryon spectrum obtained from this largely algebraic approach reproduces the 22 known experimental masses with an accuracy of 2.9(2.4)%. It also possesses the richness of states typical of constituent-quark models, predicting many heavy-quark baryons not yet observed. This study indicates that diquark correlations are an important component of all baryons; and owing to the dynamical character of the diquarks, it is typically the lightest allowed diquark correlation that defines the most important component of a baryon's Faddeev amplitude.
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