论文标题
过渡能摩托张量符号的参数化。
Parametrization of transition energy-momentum tensor form factors
论文作者
论文摘要
虽然向量电流的$ n \至δ$ transition矩阵元素的洛伦兹结构是众所周知的，但对称能量弹药电张量电流的结构尚不清楚。在这封信中，我们首先重现了$ \ frac {1} {2} {2}^{\ pm} \ to \ frac {1} {1} {2}^{\ pm} $，$ \ frac {1} {1} {2} {2} {2}^{\ mp} { \ frac {1} {2}^{\ pm} $和$ \ frac {1} {2}^{\ mp} \ to \ frac {3} {3} {2}^{\ pm pm} $ pm} $ pm} $ pm} $ transition Matrix元素。我们还重复了$ \ frac {1} {2} {2}^{\ pm} \ to \ frac {1} {2} {2}^{\ pm} $ and $ \ pm} $和$ \ frac {1} {1} {2} {2} {2} {2} {2} {2} {2} {2} {2} {2} {2} {2} {2} {2} {\ mp} {\ mp} {\ mp} {\ mp} {\ mp} {\ mp} {\ mp} {\ mp} {\ mp} {\ mp} {\ mp} {\ mp} {\ mp} {\ mp} { \ frac {1} {2}^{\ pm} $ transitions。然后，我们考虑两种$ \ frac {1} {2}^{\ pm} \ to \ frac {3} {2} {2}^{\ pm} $和$ \ frac {1} {2} {2}^{\ mp} {\ mp} \ to \ frac to \ frac {\ frac {3}能量量张量电流（例如，$ n \toΔ$ transition）。我们发现，有五个独立保守和四个独立的非保守能量量张量形式。
While the Lorentz structures of the $N \to Δ$ transition matrix element of the vector current is well-known, that of the symmetric energy-momentum tensor current is unknown. In this letter, we first reproduce the Lorentz structures of the $\frac{1}{2}^{\pm} \to \frac{1}{2}^{\pm}$, $\frac{1}{2}^{\mp} \to \frac{1}{2}^{\pm}$, and $\frac{1}{2}^{\mp} \to \frac{3}{2}^{\pm}$ transition matrix elements of the vector current. We also repeat the parametrizations of the symmetric energy-momentum tensor current for the $\frac{1}{2}^{\pm} \to \frac{1}{2}^{\pm}$ and $\frac{1}{2}^{\mp} \to \frac{1}{2}^{\pm}$ transitions. We then consider both $\frac{1}{2}^{\pm} \to \frac{3}{2}^{\pm}$ and $\frac{1}{2}^{\mp} \to \frac{3}{2}^{\pm}$ matrix elements of the symmetric energy-momentum tensor current (say, $N \to Δ$ transition) for the first time. We found that there are five independent conserved and four independent non-conserved energy-momentum tensor form factors.
