论文标题
$ b \ to d \ ell \ ell $ $ trantions的研究和新物理敏感性测试
Study of the $b \to d \ell\ell$ transitions in the Standard Model and test of New Physics sensitivities
论文作者
论文摘要
在将所有可用的实验数据和最新的晶格和光锥总和规则（LCSR）输入结合在一起之后，我们将独家$ b \分析到u \ellν_{\ ell} $和$ b \ y $ b \ y \ ell \ ell \ ell \ ell $ $ decase decase decase is cy decase。我们已经使用了分支比，直接CP不对称和同胞不对称的标准模型中提取所有相关形式因素的形状，$ b \toπ\ ell \ ell $以及各种角度可观测值以及$ b \toρ\toρ\ ell \ ell \ ell \ ell \ ell $ $ transilitions。另外，我们已经测试了这些可观察到的物理学的敏感性以外的标准模型（BSM）。对于$ b \toρ\ ell \ ell $衰减，我们定义了标记和未标记的可观察结果，并在SM和BSM中预测了它们。 In the context of BSM, we have found some compelling information. The respective predictions in a few benchmark scenarios are given, which can be tested in the experiments at the LHCb and the Belle.
After incorporating all the available experimental data and the most up-to-date Lattice and light cone sum rule (LCSR) inputs on the form factors, we analyze the exclusive $b\to u\ellν_{\ell}$ and $b\to d\ell \ell$ decays simultaneously. We have extracted the shape of all the associated form factors using which we provide predictions in the standard model for the branching ratios, direct CP asymmetries and isospin asymmetry for $B\toπ\ell \ell$ and various angular observables for $B\toρ\ell \ell$ transitions. Also, we have tested the sensitivities of these observables towards physics beyond the standard model (BSM).For the $B\toρ\ell \ell$ decays, we have defined tagged and untagged observables and predicted them in the SM and BSM. In the context of BSM, we have found some compelling information. The respective predictions in a few benchmark scenarios are given, which can be tested in the experiments at the LHCb and the Belle.
