基于物理点扭曲质量格点 QCD 的 HLbL 中的 π 介子极点贡献
高能物理 - 格点
2022-07-25 v3
摘要
我们报告了利用扭曲质量格点 QCD 对 π 介子跃迁形状因子 的计算，以确定对缪子反常磁矩 的强子光对光散射贡献中数值占优的轻赝标极点贡献。π 介子跃迁形状因子直接在物理点计算。我们给出了在 π 介子静止运动学设置下对 π 介子极点贡献估计的初步结果。
引用
@article{arxiv.2112.03586,
title = {Pion-pole contribution to HLbL from twisted mass lattice QCD at the physical point},
author = {Sebastian Burri and Constantia Alexandrou and Simone Bacchio and Georg Bergner and Jacob Finkenrath and Andrew Gasbarro and Kyriakos Hadjiyiannakou and Karl Jansen and Bartosz Kostrzewa and Giannis Koutsou and Konstantin Ottnad and Marcus Petschlies and Ferenc Pittler and Fernanda Steffens and Carsten Urbach and Urs Wenger},
journal= {arXiv preprint arXiv:2112.03586},
year = {2022}
}
备注
9 pages, 7 figures; Proceedings of the 38th International Symposium on Lattice Field Theory - Lattice 2021, Zoom/Gather@Massachusetts Institute of Technology