On linear power corrections in certain collider observables

Journal article

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.Comment: 8 page

Authors: Caola, F; Ravasio, SF; Limatola, G; Melnikov, K; Nason, P

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: Springer
• Journal: Journal of High Energy Physics
• Volume: 2022
• Issue: 1
• Pages: 93
• Article number: 93
• Publication date: 2022-01-19
• DOI: 10.1007/jhep01(2022)093
• EISSN: 1029-8479
• ISSN: 1126-6708
• Language: English
• Keywords: Nuclear physics; Annihilation; Thrust; Quantum chromodynamics; Jet (fluid); Lepton; Physics; Collider; Rapidity; Perturbative QCD; Observable; Hadron; Particle physics; Quantum mechanics