QUARK EXCHANGE CONTRIBUTION TO THE EFFECTIVE MESON MESON INTERACTION POTENTIAL

被引：16

作者：

BLASCHKE, D ^{[1
]}

ROPKE, G ^{[1
]}

机构：

[1] UNIV ROSTOCK, MPG AG VIELTEILCHENSYST, O-2500 ROSTOCK, GERMANY

来源：

PHYSICS LETTERS B | 1993年 / 299卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(93)90269-N

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A many-quark system with confining interactions (strings) within colourless qqBAR pairs is considered in the low density limit. From a diagrammatic representation of the four-quark (q2q2BAR) propagator, an effective meson-meson interaction is derived. This repulsive hadronic interaction is a consequence of the Pauli blocking on the quark level and can be interpreted as a flip of pairing. The example of elastic scattering of s-wave mesons (pipi) is presented. Choosing the meson wave functions and the phenomenological qqBAR interaction as gaussian functions, a separable meson-meson interaction potential is obtained.

引用

页码：332 / 337

页数：6

共 25 条

[1] MESON-MESON SCATTERING IN THE QUARK-STRING MODEL [J].