Cold nuclear matter effects on the color singlet J/psi production in d-Au collisions at RHIC

TL;DR

This paper introduces a modified model to analyze how cold nuclear matter influences J/psi particle production in deuteron-gold collisions at RHIC, emphasizing nuclear geometry effects and matching experimental data.

Contribution

The paper presents a Modified DKLMT model incorporating nuclear geometry effects to better understand CNM effects on J/psi production in heavy-ion collisions.

Findings

The M-DKLMT model accurately describes experimental data at various rapidities.

Nuclear geometry significantly impacts the nuclear modification factors.

The model improves understanding of CNM effects in relativistic heavy-ion collisions.

Abstract

We use a Modified DKLMT model (called M-DKLMT model) to study the cold nuclear matter (CNM) effects on the color singlet J/psi production in dAu collisions at RHIC. The cold nuclear effect of dipole-nucleus interactions has been investigated by introducing a nuclear geometric effect function f({\xi}) to study the nuclear geometry distribution effect in relativistic heavy-ion collisions. The dependencies of nuclear modification factors (RdA) on rapidity and centrality are studied and compared to experimental data. It is found that the M-DKLMT model can well describe the experimental results at both forward- and mid-rapidity regions in dAu collisions at RHIC.