重子手征微扰论中两核子单圈对π双电荷交换的修正
核理论
2007-05-23 v2 高能物理 - 唯象学
摘要
在重子手征微扰论(HBChPT)框架内，计算了阈能附近π双电荷交换(DCX)散射在核靶上的两核子能级单圈修正。在静态极限下并利用冲量近似，获得了(两核子)单圈修正的估计。我们发现相对于领头阶树图有微小(1.6%)的增加。
引用
@article{arxiv.nucl-th/9810075,
title = {2-Nucleon 1-Loop Corrections to Pion Double Charge Exchange within Heavy Baryon Chiral Perturbation Theory},
author = {A. Misra and D. S. Koltun},
journal= {arXiv preprint arXiv:nucl-th/9810075},
year = {2007}
}
备注
30 pages, RevTex, 5 tables, 5 ps figures; estimate of single-nucleon 1-loop corrections to the pi-pi, pi-N, 3pi-N vertices included in Section VI; references added; clarifying remarks regarding notations and new results related to 1-loop integrals included; discussion on Weinberg's power counting rule expanded; this revised version to appear in PRC