J/Σ dissociation by light mesons in an extended Nambu-Jona-Lasinio model

被引：21

作者：

Bourque, A. ^{[1
]}

Gale, C. ^{[1
]}

机构：

[1] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

来源：

PHYSICAL REVIEW C | 2009年 / 80卷 / 01期

关键词：

J/PSI ABSORPTION; QUARK-MODEL; CHARMONIUM; SUPPRESSION;

D O I：

10.1103/PhysRevC.80.015204

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：

A model for the dissociation of the J/Sigma is proposed, where chiral symmetry is properly implemented. Abnormal parity interactions and mesonic form factors naturally arise from the underlying quark substructure. Analytic confinement of the light quarks is obtained through an appropriate choice of quark interaction kernels. Dissociation cross sections of the J/Sigma by either a pi or a rho meson are then evaluated and discussed.

引用

页数：16

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