中文

衰变$b \to s \gamma$的轫致辐射修正

高能物理 - 唯象学 2009-10-28 v2

摘要

我们计算了包含完整算符基O^1\hat O_1 -- O^8\hat O_8的遍举衰变bsγb \rightarrow s \gamma的O(αs\alpha_s)胶子轫致辐射修正。确认并扩展了Ali和Greub的早期工作,我们给出了总衰变宽度以及微扰光子谱的公式,前者是即将进行的完整次领头阶分析的必要部分。我们详细探讨了结果的重整化标度依赖性,并发现其显著增加。

引用

@article{arxiv.hep-ph/9512252,
  title  = {Bremsstrahlung corrections to the decay $b \to s \gamma$},
  author = {Nicolas Pott},
  journal= {arXiv preprint arXiv:hep-ph/9512252},
  year   = {2009}
}

备注

23 pages, LaTeX, uses epsf.sty and rotate.sty. 4 figures (uuencoded postscript) appended as seperate file. A complete postscript version may be obtained from URL ftp://feynman.t30.physik.tu-muenchen.de/pub/preprints/tum-93-95.ps.gz Final version as to appear in Physical Review D. Some minor errors corrected, without changes in the numerical results. One reference added