A study of $$C\!P$$ violation in the decays $${ {B} ^\pm } \rightarrow [{ {K} ^+} { {K} ^-} { {\uppi } ^+} { {\uppi } ^-} ]_{D} h^{\pm }$$ ($$h = K, \pi $$) and $${ {B} ^\pm } \rightarrow [{ {\uppi } ^+} { {\uppi } ^-} { {\uppi } ^+} { {\uppi } ^-} ]_{D} h^{\pm }$$
A study of $$C\!P$$ violation in the decays $${ {B} ^\pm } \rightarrow [{ {K} ^+} { {K} ^-} { {\uppi } ^+} { {\uppi } ^-} ]_{D} h^{\pm }$$ ($$h = K, \pi $$) and $${ {B} ^\pm } \rightarrow [{ {\uppi } ^+} { {\uppi } ^-} { {\uppi } ^+} { {\uppi } ^-} ]_{D} h^{\pm }$$
复制标题
对衰变 $$C!P$$ 违规的研究 $${ {B} ^pm } ightarrow [{ {K} ^ } { {K} ^-} { {uppi } ^ } { {
DOI：
10.1140/epjc/s10052-023-11560-5
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Aaij R
中科院分区：
文献类型：
--
作者：
Aaij R
利用LHCb实验收集的质子-质子碰撞的数据样本，与积分光度Ofb相对应，首次研究了衰变模式下的破坏。分析是在相空间的箱中进行的，它针对局部不对称的敏感性进行了优化。-确定了对单位三角的角度敏感的违反观察量。分析需要有关魅力衰变参数的外部信息，这些参数目前是从LHCb数据的幅度分析中获得的，但在未来当直接测量可用时可以更新。还对衰变的相空间积分观测数据进行了测量.
The first study ofviolation in the decay mode, with, is presented, exploiting a data sample of proton-proton collisions collected by the LHCb experiment that corresponds to an integrated luminosity offb. The analysis is performed in bins of phase space, which are optimised for sensitivity to localasymmetries.-violating observables that are sensitive to the angleof the Unitarity Triangle are determined. The analysis requires external information on charm-decay parameters, which are currently taken from an amplitude analysis of LHCb data, but can be updated in the future when direct measurements become available. Measurements are also performed of phase-space integrated observables foranddecays.