2005/07/31 by PHENIX Collaboration, S. Afanasiev, S. S. Adler +98 · 2 citations
Physics and Astronomy · #Absorption (acoustics) #Centrality #Gluon #High-Energy Particle Collisions Research #Nuclear reaction #Particle physics theoretical and experimental studies #Production (economics) #Quantum Chromodynamics and Particle Interactions #Scattering #Transverse plane #nucl-ex
paper · pdf · doi:10.1103/physrevlett.96.012304
published as Phys.Rev.Lett.96:012304,2006 · 331 authors, 6 pages text, 3 figures. Published in PRL. Version 2 has minor changes required during the review and production process. Of significant note are that (a) the original Figs. 3 and 4 are combined into a single Fig. 3 and (b) the value of (p_T)**2 at x_F=0 changed from 3.17+/-0.33 to 3.03+/-0.40. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are publicly available at http://www.phenix.bnl.gov/papers.html
openalex publication_date 2006/01/10 · arxiv created 2006/03/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
J/psi production in d + Au and p + p collisions at square root of S(NN) = 200 GeV has been measured by the PHENIX experiment at rapidities -2.2 < y < +2.4. The cross sections and nuclear dependence of J/psi production versus rapidity, transverse momentum, and centrality are obtained and compared to lower energy p + A results and to theoretical models. The observed nuclear dependence in d + Au collisions is found to be modest, suggesting that the absorption in the final state is weak and the shadowing of the gluon distributions is small and consistent with Dokshitzer-Gribov-Lipatov-Altarelli-Parisi-based parametrizations that fit deep-inelastic scattering and Drell-Yan data at lower energies.