Meson-meson interactions - From static to dynamic valence quarks

被引：3

作者：

Fiebig, HR ^{[1
]}

Markum, H ^{[1
]}

Mihaly, A ^{[1
]}

Rabitsch, K ^{[1
]}

Sakuler, W ^{[1
]}

Starkjohann, C ^{[1
]}

机构：

[1] VIENNA TECH UNIV, INST KERNPHYS, A-1040 VIENNA, AUSTRIA

来源：

NUCLEAR PHYSICS B | 1996年

基金：

美国国家科学基金会; 奥地利科学基金会;

关键词：

D O I：

10.1016/0920-5632(96)00081-3

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

A method for the extraction of an effective meson-meson potential from Green functions, which can be obtained from a lattice simulation, is presented. Simulations are carried out for compact QED and QCD in four dimensions using the quenched approximation and the hopping parameter expansion. In a further study, a heavy-light meson is considered employing a conjugate gradient algorithm for the light propagators. Due to the Pauli exclusion principle, the results for QED indicate the existence of a hard core, but for QCD there is strong attraction at small meson distances.

引用

页码：394 / 397

页数：4