Axial charges of the hidden-charm pentaquark states

被引：3
作者：
Wang, Guang-Juan [1 ,2 ,3 ]
Liu, Zhan-Wei [4 ,5 ]
Zhu, Shi-Lin [1 ,2 ,3 ,6 ]
机构：
[1] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
[2] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
[3] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
[4] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China
[5] Univ Adelaide, Dept Phys, Special Res Ctr Subat Struct Matter CSSM, Adelaide, SA 5005, Australia
[6] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China
来源：
PHYSICAL REVIEW C | 2016年 / 94卷 / 06期
基金：
中国国家自然科学基金;
关键词：
DIQUARK MODEL; QUARK-MODEL; BARYONS; MESON;
D O I：
10.1103/PhysRevC.94.065202
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
With the chiral quark model, we have calculated the axial charges of the pentaquark states with (I, I-3) = (1/2, 1/2) and J(P) = 1/2(+/-), 3/2(+/-), and 5/2(+/-). The P-c states with the same J(P) quantum numbers but different color-spin-flavor configurations have very different axial charges, which encode important information on their underlying structures. For some of the J/P = 3/2(+/-) or 5/2(+/-) pentaquark states, their axial charges are much smaller than that of the proton.
引用
收藏
页数：11
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