Baryonic form factors induced by tensor currents in light-front approach
Baryonic form factors induced by tensor currents in light-front approach
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DOI：
10.1103/physrevd.108.035008
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发表时间：
2023-05
影响因子：
5
通讯作者：
Han-Chao Liu;Wei Wang;Zhi-Peng Xing
中科院分区：
文献类型：
--
作者：
Han-Chao Liu;Wei Wang;Zhi-Peng Xing
受最近轻子味普适性反常现象的启发，我们研究了由重到轻张量流诱导的重子形状因子。在光阵面夸克模型下，我们计算了张量形状因子，用两种参数化形式得到了动量分布。导出了形状因子为q^2 =0时的数值结果，并通过外推得到了q^2分布中的参数。我们的结果有助于分析重光跃迁中新的物理贡献。
Inspired by the recent anomalies on the lepton flavor universalities, we present a investigation of baryonic form factors induced by heavy-to-light tensor currents. With the light-front quark model, we calculate the tensor form factors and the momentum-distributions are accessed with two parametrization forms. Numerical results for the form factors at $q^2=0$ are derived and parameters in $q^2$ distributions are obtained through extrapolation. Our results are helpful for the analysis of new physics contributions in the heavy-to-light transition.