Relations between generalized parton distributions and transverse momentum dependent parton distributions

Asmita Mukherjee; Bheemsehan Gurjar; Dipankar Chakrabarti; Poonam Choudhary; Pulak Talukdar

Relations between generalized parton distributions and transverse momentum dependent parton distributions

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arxiv 2107.02216 v2 pith:IA2QC7YQ submitted 2021-07-05 hep-ph

Bheemsehan Gurjar , Dipankar Chakrabarti , Poonam Choudhary , Asmita Mukherjee , Pulak Talukdar This is my paper · ORCID

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abstract

We investigate the relations between transverse momentum dependent parton distributions (TMDs) and generalized parton distributions (GPDs) in a light-front quark-diquark model motivated by soft wall AdS/QCD. Many relations are found to have similar structure in different models. It is found that a relation between the Sivers function and the GPD $E_q$ can be obtained in this model in terms of a lensing function. The quark orbital angular momentum is calculated and the results are compared with the results in other similar models. Implications of the results are discussed. Relations among different TMDs in the model are also presented.

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Gluon contribution to the angular momentum distribution of a dressed quark state
hep-ph 2024-11 accept novelty 6.0 of 10

Gluon angular momentum densities in a dressed quark model are computed for canonical, kinetic, and Belinfante decompositions, and the spin sum rule is verified.

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