Tensor form factors of decuplet hyperons in QCD

TL;DR

This paper calculates the tensor form factors and quark tensor charges of certain hyperons using QCD sum rules, providing insights into their internal spin structure and tensor dynamics.

Contribution

It offers the first comprehensive numerical evaluation of tensor form factors for hyperons and extracts their quark tensor charges within the QCD sum rules framework.

Findings

Tensor form factors evaluated in the region 0<Q^2<10 GeV^2.

Quark tensor charges of hyperons extracted in the forward limit.

Provides non-perturbative insights into spin structure of spin-3/2 baryons.

Abstract

Tensor form factors encode essential information about the internal spin structure and tensor dynamics of baryons. In this work, we investigate the tensor form factors of the baryon hyperons $\Omega^-$, $\Sigma^{*+}$, and $\Xi^{*-}$ within the framework of QCD sum rules. The complete set of tensor form factors is numerically evaluated in the momentum transfer region $0<Q^2<10~\text{GeV}^2$. In addition, the quark tensor charges of the considered hyperons are extracted in the forward limit. The results provide new non-perturbative insight into the tensor structure and spin content of spin-$3/2$ baryons and offer valuable theoretical input for future phenomenological analyses and experimental studies.