手征微扰论对质子康普顿散射的预言
核理论
2009-05-26 v1
摘要
我们在显式协变的重子手征微扰论(BχPT)框架下计算了核子的康普顿散射。可观测量结果与相应的重子手征微扰论(HBχPT)计算结果有显著差异,在前向运动学中最为明显。我们验证了协变p^3阶结果满足前向康普顿散射求和规则。我们还探讨了Δ(1232)共振的影响。我们发现,Δ激发对核子极化率的显著影响可以自然地纳入显式协变计算中。
引用
@article{arxiv.0905.3861,
title = {Predictions of chiral perturbation theory for Compton scattering off protons},
author = {V. Lensky and V. Pascalutsa},
journal= {arXiv preprint arXiv:0905.3861},
year = {2009}
}
备注
7 pages, 4 figures, to appear in in the proceedings of the International Workshop on Effective Field Theories: from the Pion to the Upsilon. EFT09, Valencia, 1-6 Feb. 2009