skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Nuclear effects on hadron production in d+Au collisions at {radical}(s{sub NN})=200 GeV revealed by comparison with p+p data

Abstract

PHENIX has measured the centrality dependence of midrapidity pion, kaon, and proton transverse momentum distributions in d+Au and p+p collisions at {radical}(s{sub NN})=200 GeV. The p+p data provide a reference for nuclear effects in d+Au and previously measured Au+Au collisions. Hadron production is enhanced in d+Au, relative to independent nucleon-nucleon scattering, as was observed in lower energy collisions. The nuclear modification factor for (anti)protons is larger than that for pions. The difference increases with centrality but is not sufficient to account for the abundance of baryon production observed in central Au+Au collisions at the BNL Relativistic Heavy Ion Collider (RHIC). The centrality dependence in d+Au shows that the nuclear modification factor increases gradually with the number of collisions encountered by each participant nucleon. We also present comparisons with lower energy data as well as with parton recombination and other theoretical models of nuclear effects on particle production.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)
Publication Date:
OSTI Identifier:
20863735
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 74; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevC.74.024904; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ABUNDANCE; BROOKHAVEN RHIC; COMPARATIVE EVALUATIONS; DEUTERON REACTIONS; DISTRIBUTION; GEV RANGE; GLUONS; GOLD 197 REACTIONS; GOLD 197 TARGET; KAONS; MULTIPARTICLE SPECTROMETERS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE IDENTIFICATION; PARTICLE PRODUCTION; PIONS; PROTONS; QUARKS; RECOMBINATION; TRANSVERSE MOMENTUM

Citation Formats

Adler, S S, Aronson, S H, Chujo, T, David, G, Desmond, E J, Franz, A, Haggerty, J S, Harvey, M, Johnson, B M, Kistenev, E, Kroon, P J, Makdisi, Y I, Mioduszewski, S, Mitchell, J T, Morrison, D P, O'Brien, E, Pinkenburg, C, Pisani, R P, Purschke, M L, and Shea, T K. Nuclear effects on hadron production in d+Au collisions at {radical}(s{sub NN})=200 GeV revealed by comparison with p+p data. United States: N. p., 2006. Web. doi:10.1103/PHYSREVC.74.024904.
Adler, S S, Aronson, S H, Chujo, T, David, G, Desmond, E J, Franz, A, Haggerty, J S, Harvey, M, Johnson, B M, Kistenev, E, Kroon, P J, Makdisi, Y I, Mioduszewski, S, Mitchell, J T, Morrison, D P, O'Brien, E, Pinkenburg, C, Pisani, R P, Purschke, M L, & Shea, T K. Nuclear effects on hadron production in d+Au collisions at {radical}(s{sub NN})=200 GeV revealed by comparison with p+p data. United States. https://doi.org/10.1103/PHYSREVC.74.024904
Adler, S S, Aronson, S H, Chujo, T, David, G, Desmond, E J, Franz, A, Haggerty, J S, Harvey, M, Johnson, B M, Kistenev, E, Kroon, P J, Makdisi, Y I, Mioduszewski, S, Mitchell, J T, Morrison, D P, O'Brien, E, Pinkenburg, C, Pisani, R P, Purschke, M L, and Shea, T K. Tue . "Nuclear effects on hadron production in d+Au collisions at {radical}(s{sub NN})=200 GeV revealed by comparison with p+p data". United States. https://doi.org/10.1103/PHYSREVC.74.024904.
@article{osti_20863735,
title = {Nuclear effects on hadron production in d+Au collisions at {radical}(s{sub NN})=200 GeV revealed by comparison with p+p data},
author = {Adler, S S and Aronson, S H and Chujo, T and David, G and Desmond, E J and Franz, A and Haggerty, J S and Harvey, M and Johnson, B M and Kistenev, E and Kroon, P J and Makdisi, Y I and Mioduszewski, S and Mitchell, J T and Morrison, D P and O'Brien, E and Pinkenburg, C and Pisani, R P and Purschke, M L and Shea, T K},
abstractNote = {PHENIX has measured the centrality dependence of midrapidity pion, kaon, and proton transverse momentum distributions in d+Au and p+p collisions at {radical}(s{sub NN})=200 GeV. The p+p data provide a reference for nuclear effects in d+Au and previously measured Au+Au collisions. Hadron production is enhanced in d+Au, relative to independent nucleon-nucleon scattering, as was observed in lower energy collisions. The nuclear modification factor for (anti)protons is larger than that for pions. The difference increases with centrality but is not sufficient to account for the abundance of baryon production observed in central Au+Au collisions at the BNL Relativistic Heavy Ion Collider (RHIC). The centrality dependence in d+Au shows that the nuclear modification factor increases gradually with the number of collisions encountered by each participant nucleon. We also present comparisons with lower energy data as well as with parton recombination and other theoretical models of nuclear effects on particle production.},
doi = {10.1103/PHYSREVC.74.024904},
url = {https://www.osti.gov/biblio/20863735}, journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 2,
volume = 74,
place = {United States},
year = {2006},
month = {8}
}