The gravitational form factor D(t) of the electron
The gravitational form factor D(t) of the electron
复制标题
电子的引力形状因子D(t)
DOI：
10.1016/j.physletb.2021.136501
复制
发表时间：
2021
影响因子：
4.4
通讯作者：
Rodini, Simone
中科院分区：
文献类型：
--
作者：
Metz, Andreas;Pasquini, Barbara;Rodini, Simone
电子-引力子相互作用可以用QED能量动量张量的引力形式因子来描述。在这里，我们集中讨论形状因子D(T)，并考察它的性质以及它在QED中单圈精度下的内力解释。我们通过将能量动量张量的电子部分和光子部分的贡献分开来执行计算。我们还研究了非零光子质量的情况。此外，我们还讨论了与强子束束态的形状因子D(T)的异同。
The electron-graviton interaction can be described in terms of the gravitational form factors of the QED energy-momentum tensor. Here we focus on the form factor D (t), and we examine its properties and its interpretation in terms of internal forces at one-loop accuracy in QED. We perform the calculation by keeping separate the contributions due to the electron and the photon parts of the energy-momentum tensor. We also study the case of a nonzero photon mass. Furthermore, we discuss similarities with and differences to the form factor D (t) of hadronic bound states.