Heavy-flavour pentaquarks in a chiral constituent quark model

被引：59

作者：

Genovese, M

Richard, JM

Stancu, F

Pepin, S

机构：

[1] Univ Grenoble 1, Inst Sci Nucl, IN2P3, CNRS, F-38026 St Martin Dheres, France

[2] Univ Liege, Inst Phys B5, B-4000 Liege 1, Belgium

[3] Univ Manchester, Dept Phys & Astron, Theoret Phys Grp, Manchester M13 9PL, Lancs, England

来源：

PHYSICS LETTERS B | 1998年 / 425卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(98)00187-7

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Within the chiral constituent quark model of Glozman and Risks and its further developments, we discuss the stability of heavy pentaquarks, i.e. hadrons containing four light quarks and a heavy antiquark. The spin-dependent part of the Hamiltonian is dominated by the short-range part of the Goldstone-boson-exchange interaction. We find that these systems are not bound, having an energy above the lowest dissociation threshold into a baryon and a meson. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：171 / 176

页数：6

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