红外正则化手征扰动论中的重子质量
核理论
2009-10-31 v2 高能物理 - 唯象学
摘要
使用最近提出的红外正则化方案，在 SU(3) 手征扰动论中检验了至三阶的重子质量。通过评估主导图估计了四阶。借助此正则化，圈积分的量级减小，使得该级数的收敛性似乎优于重子方法。
引用
@article{arxiv.nucl-th/9904017,
title = {Baryon Masses in Chiral Perturbation Theory with Infrared Regularization},
author = {P. J. Ellis and K. Torikoshi},
journal= {arXiv preprint arXiv:nucl-th/9904017},
year = {2009}
}
备注
The original third order calculation is supplemented by an estimate of fourth order using just the dominant diagram. The convergence still appears to be better than in the heavy baryon approach. To be published in Phys. Rev. C. 15 pages latex, 2 postscript figures