Linear relation between short range correlation and EMC effect of gluons in nuclei

2024/01/30 by Wei Wang, J. Xu, Wang, Wei +5
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2401.16662

openalex publication_date 2024/01/30 · openalex created_date 2024/02/01 · openalex updated_date 2026/07/28

Abstract

We explore the EMC effect of gluons through heavy quark production in deep inelastic scattering (DIS) and the nucleon-nucleon short range correlation (SRC) from sub-threshold photoproduction of the J/ψ. Applying an effective field theory analysis, we scrutinize the gluon parton distribution functions in nuclear environment and propose a linear relation between the slope of reduced cross section ratio, which reflects the magnitude of gluon EMC effect, and the J/ψ production cross section at the photon energy E_γ= 7.0 \textrmGeV in the nucleus rest frame, a characteristic representative of SRC. This finding is supported by a numerical calculation using the available phenomenological results for gluon nuclear parton distribution functions (nPDFs). Examining this linear relation by the forthcoming experimental data on electron-ion collider allows to decipher nuclear effects of gluon distributions and enhance our comprehension of the substructure in bound nuclei.

Related

• Nuclear binding, correlations and the origin of EMC effect
• Electromagnetic form factors for nucleons in short-range correlations
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• Mass dependence of short-range correlations in nuclei and the EMC effect
• Isospin Dependence of the EMC effect and Short range Correlations