论文标题
对包容性$ b \ to c $ emeptonic衰减时刻的新物理学贡献
New physics contributions to moments of inclusive $b \to c$ semileptonic decays
论文作者
论文摘要
包含半蛋白质的$ b \ to x_c \ ell \barν_\ ell $衰减，其中$ \ ell =μ，e $在确定CKM元素$ | v_ {cb} | $的标准蜡烛中。这些确定依赖于夸克的膨胀，并利用衰减光谱的力矩直接从标准模型假设下的数据中提取非扰动参数。同时，新物理可能会影响纳入的腐烂时刻。在本文中，我们使用Dimension-Six-Six新物理运算符的全部基础来计算强耦合常数的功率校正和临时订单校正，以包含$ b \ to x_c \ el \ ell \barν$ decay。我们为Lepton Energy，Hadronic和Leptonic不变质量矩提供预测，并进行现象学研究以显示新物理学的可能影响。我们的结果可用于执行包括新物理贡献在内的全球效果。
Inclusive semileptonic $B\to X_c \ell \barν_\ell$ decays, where $\ell = μ,e$, are by now standard candles in the determination of the CKM element $|V_{cb}|$. These determinations rely on the heavy-quark expansion and use moments of decay spectra to extract the non-perturbative parameters directly from data under the standard model assumption. At the same time, new physics could influence the moments of the inclusive decay. In this paper, we compute power-corrections and next-to-leading order corrections in the strong coupling constant using the full basis of dimension-six new physics operators for the inclusive $B \to X_c \ell \barν$ decay. We provide predictions for lepton energy, hadronic and leptonic invariant mass moments, and perform a phenomenological study to show the possible impact of new physics. Our results could be used to perform a global fit including new physics contributions.
