论文标题
Kaon半蛋白质外形的动量转移依赖性在物理点上（10 fm）$^4 $
Momentum transfer dependence of kaon semileptonic form factor on (10 fm)$^4$ at the physical point
论文作者
论文摘要
我们使用两组PACS10配置计算KAON半蛋白质形式，它们的物理量大于物理点（10 fm）$^4 $。晶格间距为0.063和0.085 FM。使用Iwasaki量规操作生成配置，$ n_f = 2+1 $ stout-smeared smeared nonerpert $ o（a）$改进的威尔逊夸克动作。从形式因素的动量转移依赖性开始，我们评估了零动量转移时形状因子的斜率和曲率。此外，我们计算了相位空间因子，该系数用于通过Kaon半衰减衰减来获得$ | v_ {us} | $。将这些结果与以前的晶格结果和实验值进行了比较。
We calculate the kaon semileptonic form factors using the two sets of the PACS10 configuration, whose physical volumes are more than (10 fm)$^4$ at the physical point. The lattice spacings are 0.063 and 0.085 fm. The configurations were generated using the Iwasaki gauge action and $N_f=2+1$ stout-smeared nonperturbatively $O(a)$-improved Wilson quark action. From the momentum transfer dependence of the form factors, we evaluate the slope and curvature for the form factors at the zero momentum transfer. Furthermore, we calculate the phase space factor, which is used to obtain $|V_{us}|$ through the kaon semileptonic decay. These results are compared with previous lattice results and experimental values.
