论文标题
瞥见茶引力的形态
A glimpse into pion gravitational form factor
论文作者
论文摘要
我们提供了一种新的方法，可以通过接触相互作用来计算Beth-Salpeter方程的梯子近似下的Pion的重力形状。这种方法的核心是对穿着的$ππ$振幅的对称性处理的处理，该处理明确显示了内在夸克和绑定状态的贡献，后者是在软峰极限内产生p $ d $ term的必要条件。我们在这项工作中提供的方法可以应用于许多物理意义的过程。
We provide a novel approach to calculate the gravitational form factor of pion under the ladder approximation of the Bethe-Salpeter equation, with contact interactions. Central to this approach is a symmetry-preserving treatment of the dressed $ππ$ amplitude, which shows explicitly the contributions from intrinsic quarks and bound states, the latter being necessary to produce the $D$-term of pion in the soft-pion limit. The approach we provide in this work can be applied to many processes of physical significance.
