LHCb的CKM角γ的测量

M. Bjoern
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引用次数: 0

摘要

这些程序描述了两个LHCb测量的CKM角$\gamma$:使用$B^0\to D K^{*0}$进行测量,其中$D$介子衰变为两体和四体最终态,使用对应于$5\,\text{fb}^{-1}$的综合光度的质子-质子碰撞数据;使用$B^\pm\to DK^\pm$进行测量,其中$D$衰变为最终态$K_\text{S}^0\pi^+\pi^-$和$K_\text{S}^0K^+K^-$,使用对应于$2\,\text{fb}^{-1}$的综合光度的数据。此外,还描述了$\gamma$所有LHCb测量的组合。这种组合构成了世界领先的,单次实验直接测定$\gamma$,并得到值$\gamma=(74.0^{+5.0}_{-5.8})^\circ$。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Measurements of the CKM angle γ at LHCb
These proceedings describe two LHCb measurements of the CKM angle $\gamma$: a measurement with $B^0\to D K^{*0}$ decays where the $D$ meson decays into two- and four-body final states, using proton-proton collision data corresponding to an integrated luminosity of $5\,\text{fb}^{-1}$, and a measurement using $B^\pm\to DK^\pm$ decays where the $D$ decays into the final states $K_\text{S}^0\pi^+\pi^-$ and $K_\text{S}^0K^+K^-$, using data corresponding to an integrated luminosity of $2\,\text{fb}^{-1}$. Furthermore, the combination of all LHCb measurements of $\gamma$ is described. This combination constitutes the world-leading, single-experiment direct determination of $\gamma$ and obtains the value $\gamma=(74.0^{+5.0}_{-5.8})^\circ$.
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