Nuclear shadowing and high-pThadron spectra in relativistic heavy ion collisions

2002/11/22 by S. R. Klein, R. Vogt
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevc.67.047901

published as Phys.Rev. C67 (2003) 047901 · 12 pages with 3 figures

arxiv created 2002/11/22 · openalex publication_date 2003/04/18 · arxiv updated 2010/07/02 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We explore how nuclear modifications to the nucleon parton distributions affect production of high-p_T hadrons in heavy ion collisions. We perform a leading order calculation of the high-p_T charged pion, kaon, and proton spectra using standard fragmentation functions and shadowing parametrizations. We also consider alternate models of shadowing. Near midrapidity, shadowing is a small effect and cannot explain the large observed suppression of high-p_T hadrons. We also consider the isospin difference between protons and nuclei and find that it is also a small effect on high-p_T hadron production.

Citations

• Fragmentation functions for pions, kaons, and protons at next-to-leading order
• Jet tomography of Au+Au reactions including multi-gluon fluctuations