MESON-MESON SCATTERING PHASE-SHIFTS IN (2+1)-DIMENSIONAL LATTICE QED

被引：17

作者：

FIEBIG, HR ^{[1
]}

WOLOSHYN, RM ^{[1
]}

DOMINGUEZ, A ^{[1
]}

机构：

[1] TRIUMF, VANCOUVER V6T 2A3, BC, CANADA

来源：

NUCLEAR PHYSICS B | 1994年 / 418卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0550-3213(94)90534-7

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：

The mass spectrum of a meson-meson system in compact three-dimensional lattice quantum electrodynamics is computed from a time correlation matrix with staggered fermions. The energy levels indicate a slightly attractive residual interaction between the mesons. From the finite-volume spectrum scattering phase shifts within the various irreducible representations of the (cubic, d = 2) lattice symmetry group are extracted. The s-wave (l = 0) phase shifts are consistent with repulsion at small relative distance. The d-wave (l = 2) data indicate intermediate-range attraction.

引用

页码：649 / 685

页数：37

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