协变形式的 Bethe-Salpeter 方程解
高能物理 - 唯象学
2007-05-23 v1
摘要
为了构建现实的基于量子色动力学的介子与重子模型,需要束缚态方程的协变解。此外,我们理想地需要知道所有运动学范围内的这些束缚态的结构,这使得在闵可夫斯基空间(无需任何三维约化)中直接求解成为可取。标量理论中束缚态的 Bethe-Salpeter 方程(BSE)被重新表述并以广义谱表示法在闵可夫斯基空间中求解任意散射核(K. Kusaka 等,PRD 51, 7026 '95)。这与传统的欧几里得方法不同,在欧几里得方法中,BSE 只能在 Wick 旋转后以 ladder 近似求解。
引用
@article{arxiv.hep-ph/9608278,
title = {Covariant Solutions of the Bethe-Salpeter Equation},
author = {A. G. Williams and K. Kusaka and K. M. Simpson},
journal= {arXiv preprint arXiv:hep-ph/9608278},
year = {2007}
}
备注
6 pages of LaTeX, uses lprocl.sty and epsfig.sty with 3 figures. Talk presented at the workshop on Quantum Chromodynamics: Collision, Confinement, and Chaos, at the American University of Paris, France, June 1996, to appear in the conference proceedings. Entire manuscript available as a ps file at http://www.physics.adelaide.edu.au/theory/home.html or ftp://adelphi.adelaide.edu.au/pub/theory/ADP-96-26.T225.ps