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arXiv 2408.15466hep-phhep-ex
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存在末态相互作用时的$B_{(s)}\ o D_{(s)}^{(*)}M$衰变

$B_{(s)}\to D_{(s)}^{(*)}M$ decays in the presence of final-state interaction

Albertus Hariwangsa Panuluh, Satoshi Tanaka, Hiroyuki Umeeda

AI总结:

基于最新衰变数据,在准弹性再散射框架下进行模型无关唯象分析,利用寿命数据约束参数区域,并指出该情景可由未来LHCb测量检验。

摘要:

鉴于近期关于$\ar{B}_{(s)}\ o D^{(*)}_{(s)}P$和$\ar{B}_{(s)}\ o D_{(s)}V$衰变的数据,我们在准弹性再散射存在的情况下进行了模型无关的唯象分析。通过包含标准模型之外贡献的Wilson系数,我们研究了$B$介子的寿命以及$B^0_d-\ar{B}^0_d$混合,以阐明可观测量之间的关联。我们表明,由于寿命数据,准弹性再散射的参数区域、颜色抑制树图振幅的大小以及新物理受到约束。因此,这一情景可以通过未来LHCb对$B^0_d-\ar{B}^0_d$混合宽度差和半轻子CP不对称性的测量来检验。

英文摘要:

In light of the recent data for $\bar{B}_{(s)}\to D^{(*)}_{(s)}P$ and $\bar{B}_{(s)}\to D_{(s)}V$ decays, we perform a model-independent phenomenological analysis in the presence of quasi-elastic rescattering. With the Wilson coefficients including contributions beyond the standard model, lifetimes of $B$ meson as well as the $B^0_d-\bar{B}^0_d$ mixing are investigated for clarifying correlations among the observables. We show that parameter regions for quasi-elastic rescattering, the size of color-suppressed tree amplitudes and new physics are constrained due to the lifetime data. As a consequence, it is revealed that this scenario can be testable by the future LHCb measurement of width difference in $B^0_d-\bar{B}^0_d$ mixing and semi-leptonic CP asymmetry.

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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