反B--> X（s）l+ l-稀有衰变中共线光子的作用
The Role of Collinear Photons in the Rare Decay anti-B --> X(s) l+ l-
摘要：
本文综述了稀有衰变\bar B -> X_sl + l-的唯象.我们提出了一个详细的唯象分析的结果，并讨论了在寻找新的物理在目前和未来的对撞机衰变的作用。此外，我们还从实验切割的角度详细讨论了电磁波的大小ln（m_b^2/m_l^2）。我们指出了BaBar和Belle分析中的差异，并对实验分析中如何处理共线光子给出了建议。这些建议精确地对应于理论处方，并且可以与在Super-B工厂进行的测量相结合。
英文摘要：
We review the phenomenology of the rare decay \bar B -> X_s l+ l-. We present the results of a detailed phenomenological analysis and discuss the role of the decay in the search for new physics at present and future colliders. Moreover, we extensively elaborate on the size of electromagnetic logarithms ln(m_b^2/m_l^2) in view of experimental cuts. We point out the differences in the analyses of BaBar and Belle and give suggestions on how to treat collinear photons in the experimental analyses. These recommendations correspond precisely to theoretical prescriptions and can be combined with measurements performed at a Super-B factory.
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