Rho介子的偶极矩
高能物理 - 唯象学
2008-11-26 v2 核理论
摘要
使用来自QCD Dyson-Schwinger方程推导的传播子和顶点计算Rho介子的电子和磁偶极矩。比较了使用Chappell、Mitchell和Tandy以及Pichowsky和Lee研究的Bethe-Salpeter振幅所得的结果。通过包含夸克电子偶极矩而产生Rho介子电子偶极矩，夸克电子偶极矩被留作自由参数。将这些结果与Perturbative结果进行比较，以获得夸克相互作用和约束效应的度量。还使用现象学的MIT袋模型计算这两个偶极矩，以提供进一步的比较依据。
引用
@article{arxiv.hep-ph/9704326,
title = {Dipole Moments of the Rho Meson},
author = {M. B. Hecht and B. H. J. McKellar},
journal= {arXiv preprint arXiv:hep-ph/9704326},
year = {2008}
}
备注
31 pages, RevTeX, 2 figures, uses psfig. Replacement of results using amplitude/propagator from paper by Mitchell et.al. with those from more recent paper by Mitchell and Tandy. Minor modification of tables 1 and 2. Explanation of proof of current conservation added. Expanded discussion of quark propagators and confinement. To be published in Phys. Rev. C