中文

Hadronic light-by-light 散射对 mu g-2 的贡献

高能物理 - 唯象学 2009-11-07 v1

摘要

我们简要回顾了夸克轻-by-light 散射对 mu g-2 的贡献的当前进展。随后我们采用基于大-N_C 和量子色动力学短程性质的描述,对夸克-粒子-粒子形式因子进行半解析评估。我们还勾勒了一种有效场论处理夸克轻-by-light 散射的方法。鉴于仍存在若干未解决问题,我们 conservatively 估计了完整的夸克轻-by-light 散射贡献为 aμ(LbyL;had)=+8(4)×1010a_{\mu}(\mathrm{LbyL};\mathrm{had}) = +8 (4) \times 10^{-10}

关键词

引用

@article{arxiv.hep-ph/0209329,
  title  = {Hadronic light-by-light scattering contribution to the muon g-2},
  author = {Andreas Nyffeler},
  journal= {arXiv preprint arXiv:hep-ph/0209329},
  year   = {2009}
}

备注

4 pages including 2 figures, Latex, uses espcrc2.sty; Talk presented at the 9th International High-Energy Physics Conference in Quantum Chromodynamics (QCD 2002), Montpellier, France, 2-9 July 2002