Collinear matching for next-to-leading power transverse-momentum distributions - Archive ouverte HAL
Article Dans Une Revue Physics Letters B Année : 2023

Collinear matching for next-to-leading power transverse-momentum distributions

Alessio Carmelo Alvaro
  • Fonction : Auteur
Barbara Pasquini
  • Fonction : Auteur

Résumé

Phenomenological studies of transverse momentum dependent (TMD) parton distributions rely on the expansion in small values of the transverse separation of fields, where TMD parton distributions match onto collinear parton distribution functions. In this work, we derive this expansion at tree-level for the genuine next-to-leading power quark-gluon-quark TMDs, taking into account all the target mass corrections. We find that only a limited number of TMD parton distributions exhibit matching to twist-three collinear distributions, leading to a significant simplification in the analysis of the structure functions of semi-inclusive deep inelastic scattering.

Dates et versions

hal-04158481 , version 1 (11-07-2023)

Identifiants

Citer

Simone Rodini, Alessio Carmelo Alvaro, Barbara Pasquini. Collinear matching for next-to-leading power transverse-momentum distributions. Physics Letters B, 2023, 845, pp.138163. ⟨10.1016/j.physletb.2023.138163⟩. ⟨hal-04158481⟩
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