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arXiv 0709.1315hep-ph
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B物理的新进展

Recent progress in B physics

Dongsheng Du

摘要:

本文首先讨论了最近在QCD分解方法中对色抑制树振幅的次前阶修正的计算,这对于解决$B\to ππ$和$πK$衰变中的难题是必不可少的.然后讨论了$B\to ϕK^*$和$ρK^*$中的极化问题。新测量的$B_s-\bar B_s$混合和$B^+\to τ^+ν$对CKM么正三角形全局拟合的影响被提及。我们还简要回顾了最近的测量新的共振在BaBar和Belle。最后讨论了强子对撞机的一些新结果,特别是$b$味强子谱。

英文摘要:

We firstly address the recent efforts on calculations of the next-to-leading order corrections to the color-suppressed tree amplitude in QCD factorization method which may be essential to solve the puzzles in $B\to ππ$ and $πK$ decays. Then we discuss the polarization puzzles in $B\to ϕK^*$ and $ρK^*$. The impacts of the newly measured $B_s-\bar B_s$ mixing and $B^+\to τ^+ν$ on the CKM unitarity triangle global fitting are mentioned. We also briefly review the recent measurements of the new resonances at BaBar and Belle. Finally, some new results from hadron colliders, especially the $b$-flavored hadron spectra, are discussed.

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。

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