Study of the subleading twist GTMD E21 for proton in light-front quark-diquark model
Abstract
In this work, we study the generalized transverse momentum dependent distribution (GTMD) E21 for proton using light-front quark-diquark model. We construct the expression of E21 GTMD using the overlap equation in light-front wave functions obtained from the GTMD correlator with Dirac matrix structure =1, in both situations of scalar and vector diquark. The 3-dimensional plots of GTMD E21 have been analyzed with respect to its variables by taking two variables at a time while holding others constant.
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