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Title: J / ψ production at low transverse momentum in p + p and d + Au collisions at s N N = 200 GeV

Abstract

In this paper, we report on the measurement of J/ψ production in the dielectron channel at midrapidity (|y| < 1) in p + p and d + Au collisions at s N N = 200 from the STAR experiment at the Relativistic Heavy Ion Collider. The transverse momentum p T spectra in p + p for p T < 4 GeV/c and d + Au collisions for p T < 3 GeV/c are presented. These measurements extend the STAR coverage for J/ψ production in p + p collisions to low p T . The < p$$2\atop{T}$$ > from the measured J/ψ invariant cross section in p + p and d + Au collisions are evaluated and compared to similar measurements at other collision energies. The nuclear modification factor for J/ψ is extracted as a function of p T and collision centrality in d + Au and compared to model calculations using the modified nuclear parton distribution function and a final-state J/ψ nuclear absorption cross section.

Authors:
 [1]
  1. AGH University of Science and Technology, FPACS (Poland). et al.
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Org.:
STAR Collaboration
OSTI Identifier:
1340377
Alternate Identifier(s):
OSTI ID: 1256768; OSTI ID: 1459371
Report Number(s):
BNL-112536-2016-JA
Journal ID: ISSN 2469-9985; PRVCAN; R&D Project: PO 004; KB0202012
Grant/Contract Number:  
SC00112704; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 93; Journal Issue: 6; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Relativistic heavy-ion collisions; hadron-hadron interactions; nucleon induced nuclear reactions; particle and resonance production; quard-gluon plasma

Citation Formats

Adamczyk, L. J/ψ production at low transverse momentum in p+p and d + Au collisions at sNN=200 GeV. United States: N. p., 2016. Web. doi:10.1103/PhysRevC.93.064904.
Adamczyk, L. J/ψ production at low transverse momentum in p+p and d + Au collisions at sNN=200 GeV. United States. doi:10.1103/PhysRevC.93.064904.
Adamczyk, L. Fri . "J/ψ production at low transverse momentum in p+p and d + Au collisions at sNN=200 GeV". United States. doi:10.1103/PhysRevC.93.064904. https://www.osti.gov/servlets/purl/1340377.
@article{osti_1340377,
title = {J/ψ production at low transverse momentum in p+p and d + Au collisions at sNN=200 GeV},
author = {Adamczyk, L.},
abstractNote = {In this paper, we report on the measurement of J/ψ production in the dielectron channel at midrapidity (|y| < 1) in p + p and d + Au collisions at sNN=200 from the STAR experiment at the Relativistic Heavy Ion Collider. The transverse momentum pT spectra in p + p for pT < 4 GeV/c and d + Au collisions for pT < 3 GeV/c are presented. These measurements extend the STAR coverage for J/ψ production in p + p collisions to low pT . The < p$2\atop{T}$ > from the measured J/ψ invariant cross section in p + p and d + Au collisions are evaluated and compared to similar measurements at other collision energies. The nuclear modification factor for J/ψ is extracted as a function of pT and collision centrality in d + Au and compared to model calculations using the modified nuclear parton distribution function and a final-state J/ψ nuclear absorption cross section.},
doi = {10.1103/PhysRevC.93.064904},
journal = {Physical Review C},
number = 6,
volume = 93,
place = {United States},
year = {2016},
month = {6}
}

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