arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0811.4146hep-lathep-exhep-ph
收藏

格点量子色动力学中的重味现象

Heavy flavour phenomenology from lattice QCD

Elvira Gamiz

摘要:

本文的重点是与重味唯象有关的强子参数的格点计算。本文将综述B和D衰变常数、半轻子衰变形状因子、B^0- \bar B^0混合以及夸克质量m_c和m_b的测定的最新结果和研究现状。一些重味观测的研究已经使用当前的晶格结果来推导标准模型的预测,这些预测似乎与实验测量不一致。例如,sin(2β)和f_{D_s}就是这种情况。本报告讨论了从晶格方面解决这些差异的起源的努力。

英文摘要:

The focus of this report is the lattice calculation of hadronic parameters relevant to heavy flavour phenomenology. I will review recent results and the current status of studies of the B and D decay constants, semileptonic decay form factors, B^0-\bar B^0 mixing, and determinations of the quark masses m_c and m_b. Some studies of heavy flavour observables have used current lattice results to derive Standard Model predictions that seem to disagree with experimental measurements. That is the case, for example, of sin(2β) and f_{D_s}. This report discusses efforts to resolvethe origin of those discrepancies from the lattice side.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑