Analysis of the higher twist GTMD $F_{31}$ for proton in the light-front quark-diquark model

TL;DR

This paper investigates the higher twist GTMD $F_{31}$ for the proton within a light-front quark-diquark model, deriving its properties and relation to TMDs using wave functions and correlator analysis.

Contribution

It introduces a detailed analysis of the higher twist GTMD $F_{31}$ in the light-front quark-diquark model, including derivation of overlap equations and TMD limits.

Findings

Behavior of GTMD $F_{31}$ illustrated through figures.

Derived the TMD $f_3$ from the GTMD $F_{31}$.

Provided insights into higher twist distributions in proton structure.

Abstract

In the light-front quark-diquark model (LFQDM), the higher twist generalized transverse momentum dependent distribution (GTMD) $F_{31}(x, {\bf p_\perp},{\bf \Delta_\perp})$ for the proton has been analyzed. We have derived the GTMD overlap equation by the analysis of GTMD correlator, employing the light-front wave functions in both the scalar and vector diquark situations. With the relevant 2-D and 3-D figures, the behavior of GTMD $F_{31}(x, {\bf p_\perp},{\bf \Delta_\perp})$ with variations in its variables has been illustrated. Further, on applying the transverse momentum dependent distribution (TMD) limit on GTMD $F_{31}(x, {\bf p_\perp},{\bf \Delta_\perp})$, the expression of TMD $f_3(x, {\bf p_\perp})$ has been obtained.