Abstract
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=200GeV from the STAR experiment at the Relativistic Heavy Ion Collider. The transverse momentum pT spectra in p+p for pT<4GeV/c and d+Au collisions for pT<3GeV/c are presented. These measurements extend the STAR coverage for J/ψ production in p+p collisions to low pT. The (pT2) 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.
Original language | English |
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Article number | 064904 |
Journal | Physical Review C |
Volume | 93 |
Issue number | 6 |
DOIs | |
State | Published - Jun 10 2016 |
Bibliographical note
Publisher Copyright:© 2016 American Physical Society.
Funding
We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at LBNL, the KISTI Center in Korea, and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Office of Nuclear Physics within the U.S. DOE Office of Science; the U.S. NSF; the Ministry of Education and Science of the Russian Federation; NSFC, CAS, MoST, and MoE of China; the National Research Foundation of Korea; NCKU (Taiwan); GA and MSMT of the Czech Republic; FIAS of Germany; DAE, DST, and UGC of India; the National Science Centre of Poland; National Research Foundation; the Ministry of Science, Education and Sports of the Republic of Croatia; and RosAtom of Russia.
Funders | Funder number |
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KISTI Center in Korea | |
MoE of China | |
RHIC Operations Group | |
RosAtom of Russia | |
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China | 1352081, 1206009, 1505716 |
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China | |
National Science Foundation Office of International Science and Engineering | |
Horia Hulubei National Institute for Physics and Nuclear Engineering | |
National Research Foundation South African Research Chair | |
Department of Science and Technology, Ministry of Science and Technology, India | |
University Grants Commission | |
Government of India, Department of Atomic Energy | |
National Natural Science Foundation of China (NSFC) | |
Ministerstvo Školství, Mládeže a Tělovýchovy | |
Chinese Academy of Sciences | |
Ministarstvo Obrazovanja, Znanosti i Sporta | |
Ministry for Education and Science of the Russian Federation | |
National Research Foundation of Korea | |
Narodowe Centrum Nauki | |
Ministry of Science and Technology, Taiwan | |
National Cheng Kung University Hospital | |
Raincoast Conservation Foundation |
ASJC Scopus subject areas
- Nuclear and High Energy Physics