2024/08/11 by R. Kishore, Kishore, Raj, Asmita Mukherjee +7
Computer Science · Physics and Astronomy · #Advanced Data Storage Technologies #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Magnetic confinement fusion research #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.2408.05698
openalex publication_date 2024/08/11 · openalex created_date 2024/09/10 · openalex updated_date 2026/07/28
A back-to-back semi-inclusive J/ψ+ jet production is a promising process to study gluon transverse momentum distribution (TMDs) at the future electron-ion collider (EIC). A back-to-back configuration allows a higher transverse momentum for J/ψ. We present an extension of a previous work where we studied cos2ϕ azimuthal asymmetry within the TMD factorization framework for this process. We present and compare the effect of TMD evolution on the asymmetry, in two approaches that differ in the parameterization of the perturbative tails of the TMDs and the non-perturbative factors. We show that the asymmetry depends on the parameterizations of the non-perturbative Sudakov factors in the larger bT region and on the perturbative part of the evolution kernel. We use NRQCD to estimate the J/ψ production and show the effect of using different long-distance matrix element (LDME) sets. Overall, the asymmetry after incorporating TMD evolution is small, but increases with the transverse momentum imbalance of the J/ψ-jet pair.