论文标题
朝着$kπ$散射在物理点上的域壁费米子散射
Towards $Kπ$ scattering with domain-wall fermions at the physical point using distillation
论文作者
论文摘要
共振在标准模型现象学中起重要作用。尤其是$ b $和$ d $衰减中的HADRONIC共振功能，这对于新物理搜索可能是核心。如今，晶格QCD模拟与有限体积方法相结合，可以用来可靠地研究诸如$kπ$之类的强烈耦合散射过程，因此可以使用HADRONIC RESONANCE $ K^*$。在这项工作中，我们接近$kπ$散射在域壁上$ n_f = 2+1 $ rbc-ukqcd seplemble在物理派质量上。我们使用网格和Hadrons软件中的蒸馏方法来计算运算符的集合。这允许解决特征值问题，以提取低能有限体积光谱，然后将其转化为散射信息。我们通过审查涂抹过程，概述了变分分析并通过显示初步数据来更新计算状态。
Resonances play an important role in Standard Model phenomenology. In particular, hadronic resonances feature in $B$ and $D$ decays, which can be central for New Physics searches. Lattice QCD simulations combined with the finite-volume method can nowadays be used to reliably study strongly coupled scattering processes such as $Kπ$ and thus the hadronic resonance $K^*$. In this work, we approach $Kπ$ scattering on a domain-wall $N_f = 2+1$ RBC-UKQCD ensemble at a physical pion mass. We use the distillation method within Grid and Hadrons software to compute sets of operator basis. That allows solving an eigenvalue problem to extract the low-energy finite-volume spectra, which are then translated into scattering information. We update the state of the calculation by reviewing the smearing process, outlining the variational analysis and concluding by showing preliminary data.
