论文标题
包含半leptonic $ b _ {（s）} $ mesons衰减在物理$ b $ quark质量
Inclusive semi-leptonic $B_{(s)}$ mesons decay at the physical $b$ quark mass
论文作者
论文摘要
我们解决了包含半leptonic $ b _ {（s）} $介子衰减的衰减率的非扰动计算。精确的理论标准模型预测是搜索新物理学的关键要素。这种类型的计算最终可能会为CKM矩阵元素的包含性和独家确定之间的长期张力提供新的见解。我们对$ b_s \ rightarrow x_c \，lν_l$执行试点晶格计算并改进了现有技术。我们的模拟中的价夸克质量大约是域壁奇怪和魅力夸克以及底部夸克的物理，我们使用相对论的重夸克有效动作。我们报告了我们的进度，并讨论了未来的计划，该计划具有完全控制的系统效果的第一项研究。
We address the non-perturbative calculation of the decay rate of inclusive semi-leptonic $B_{(s)}$ mesons decays from lattice QCD. Precise theoretical Standard Model predictions are key ingredients in searches for new physics. This type of computation may eventually provide new insight into the long-standing tension between the inclusive and exclusive determinations of the CKM matrix elements $|V_{cb}|$ and $|V_{ub}|$. We perform a pilot lattice computation for $B_s \rightarrow X_c \, l ν_l$ and improve on existing techniques. The valence-quark masses in our simulations are approximately physical for the domain-wall strange and charm quarks as well as for the bottom quark, for which we use a relativistic heavy quark effective action. We report on our progress and discuss future plans towards a first study with fully controlled systematic effects.
