2026-06-29T07:36:32Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/1029682024-05-31T15:06:00Zcom_20.500.14352_14col_20.500.14352_15

Factorization for quasi-TMD distributions of sub-leading power Rodini, Simone Vladimirov, Alexey 539.1 Factorization Renormalization group Parton distributions Partículas 2212.02 Partículas Elementales 2023 Descuento SCOAP The quasi-transverse-momentum dependent (qTMD) distributions are equal-time correlators that can be computed within the lattice QCD approach. In the regime of large hadron’s momentum, qTMD distributions are expressed in terms of standard TMD distributions via the factorization theorem. We derive the corresponding factorization theorem at the next-to-leading power (NLP), and, for the first time, we present the factorized expressions for a large class of qTMD distributions of sub-leading power. The NLP expression contains TMD distributions of twist-two, twist-three, and a new lattice-specific nonperturbative function. We point out that some of the qTMD distributions considered in this work can be employed to extract the Collins-Soper kernel using the standard techniques of different-momenta ratios. We provide NLO expressions for all the elements of the factorization theorem. Also, for the first time, we explicitly demonstrate the restoration of boost invariance of the TMD factorization at NLP. Comunidad de Madrid Ministerio de Ciencia e Innovación (España) Deutsche Forschungsgemeinschaft (DFG) Ecole Polytechnique Depto. de Física Teórica Fac. de Ciencias Físicas Instituto de Física de Partículas y del Cosmos (IPARCOS) TRUE pub Descuento UCM 2024-04-10T15:40:47Z 2024-04-10T15:40:47Z 2023-09-19 journal article VoR https://hdl.handle.net/20.500.14352/102968 1126-6708 10.1007/jhep09(2023)117 1029-8479 eng 2020-T1/TIC-20204 PID2019-106080GB-C21 FOR 2926 (430824754) Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ open access application/pdf Springer