ϒ production in U + U collisions at sNN =193 GeV measured with the STAR experiment

STAR Collaboration

doi:10.1103/PhysRevC.94.064904

ϒ production in U + U collisions at sNN =193 GeV measured with the STAR experiment

STAR Collaboration

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

We present a measurement of the inclusive production of ϒ mesons in U+U collisions at sNN=193 GeV at midrapidity (|y|<1). Previous studies in central Au+Au collisions at sNN=200 GeV show a suppression of ϒ(1S+2S+3S) production relative to expectations from the ϒ yield in p+p collisions scaled by the number of binary nucleon-nucleon collisions (Ncoll), with an indication that the ϒ(1S) state is also suppressed. The present measurement extends the number of participant nucleons in the collision (Npart) by 20% compared to Au+Au collisions, and allows us to study a system with higher energy density. We observe a suppression in both the ϒ(1S+2S+3S) and ϒ(1S) yields in central U+U data, which consolidates and extends the previously observed suppression trend in Au+Au collisions.

Original language	English
Article number	064904
Journal	Physical Review C
Volume	94
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.94.064904
State	Published - Dec 15 2016
Externally published	Yes

Funding

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
RosAtom of Russia
National Science Foundation	1352081, 1613939
Office of Science
Nuclear Physics
National Research Foundation
Department of Science and Technology, Ministry of Science and Technology, India
University Grants Commission
Department of Atomic Energy, Government of India
National Natural Science Foundation of China
Ministerstvo Školství, Mládeže a Tělovýchovy
Chinese Academy of Sciences
Ministry of Science and Technology of the People's Republic of China
Ministarstvo Obrazovanja, Znanosti i Sporta
Ministry of Education and Science of the Russian Federation
National Research Foundation of Korea
Narodowe Centrum Nauki
National Cheng Kung University Hospital

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10.1103/PhysRevC.94.064904

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@article{1bdd722058b74271b0beaab2938d0ad3,

title = "ϒ production in U + U collisions at sNN =193 GeV measured with the STAR experiment",

abstract = "We present a measurement of the inclusive production of ϒ mesons in U+U collisions at sNN=193 GeV at midrapidity (|y|<1). Previous studies in central Au+Au collisions at sNN=200 GeV show a suppression of ϒ(1S+2S+3S) production relative to expectations from the ϒ yield in p+p collisions scaled by the number of binary nucleon-nucleon collisions (Ncoll), with an indication that the ϒ(1S) state is also suppressed. The present measurement extends the number of participant nucleons in the collision (Npart) by 20% compared to Au+Au collisions, and allows us to study a system with higher energy density. We observe a suppression in both the ϒ(1S+2S+3S) and ϒ(1S) yields in central U+U data, which consolidates and extends the previously observed suppression trend in Au+Au collisions.",

author = "{STAR Collaboration} and L. Adamczyk and Adkins, {J. K.} and G. Agakishiev and Aggarwal, {M. M.} and Z. Ahammed and I. Alekseev and Anderson, {D. M.} and R. Aoyama and A. Aparin and D. Arkhipkin and Aschenauer, {E. C.} and Ashraf, {M. U.} and A. Attri and Averichev, {G. S.} and X. Bai and V. Bairathi and R. Bellwied and A. Bhasin and Bhati, {A. K.} and P. Bhattarai and J. Bielcik and J. Bielcikova and Bland, {L. C.} and Bordyuzhin, {I. G.} and J. Bouchet and Brandenburg, {J. D.} and Brandin, {A. V.} and I. Bunzarov and J. Butterworth and H. Caines and {Calder{\'o}n De La Barca S{\'a}nchez}, M. and Campbell, {J. M.} and D. Cebra and I. Chakaberia and P. Chaloupka and Z. Chang and A. Chatterjee and S. Chattopadhyay and Chen, {J. H.} and X. Chen and J. Cheng and M. Cherney and W. Christie and G. Contin and Crawford, {H. J.} and S. Das and {De Silva}, {L. C.} and Debbe, {R. R.} and Dedovich, {T. G.} and J. Schambach",

note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = dec,

day = "15",

doi = "10.1103/PhysRevC.94.064904",

language = "English",

volume = "94",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "6",

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T1 - ϒ production in U + U collisions at sNN =193 GeV measured with the STAR experiment

AU - STAR Collaboration

AU - Adamczyk, L.

AU - Adkins, J. K.

AU - Agakishiev, G.

AU - Aggarwal, M. M.

AU - Ahammed, Z.

AU - Alekseev, I.

AU - Anderson, D. M.

AU - Aoyama, R.

AU - Aparin, A.

AU - Arkhipkin, D.

AU - Aschenauer, E. C.

AU - Ashraf, M. U.

AU - Attri, A.

AU - Averichev, G. S.

AU - Bai, X.

AU - Bairathi, V.

AU - Bellwied, R.

AU - Bhasin, A.

AU - Bhati, A. K.

AU - Bhattarai, P.

AU - Bielcik, J.

AU - Bielcikova, J.

AU - Bland, L. C.

AU - Bordyuzhin, I. G.

AU - Bouchet, J.

AU - Brandenburg, J. D.

AU - Brandin, A. V.

AU - Bunzarov, I.

AU - Butterworth, J.

AU - Caines, H.

AU - Calderón De La Barca Sánchez, M.

AU - Campbell, J. M.

AU - Cebra, D.

AU - Chakaberia, I.

AU - Chaloupka, P.

AU - Chang, Z.

AU - Chatterjee, A.

AU - Chattopadhyay, S.

AU - Chen, J. H.

AU - Chen, X.

AU - Cheng, J.

AU - Cherney, M.

AU - Christie, W.

AU - Contin, G.

AU - Crawford, H. J.

AU - Das, S.

AU - De Silva, L. C.

AU - Debbe, R. R.

AU - Dedovich, T. G.

AU - Schambach, J.

PY - 2016/12/15

Y1 - 2016/12/15

N2 - We present a measurement of the inclusive production of ϒ mesons in U+U collisions at sNN=193 GeV at midrapidity (|y|<1). Previous studies in central Au+Au collisions at sNN=200 GeV show a suppression of ϒ(1S+2S+3S) production relative to expectations from the ϒ yield in p+p collisions scaled by the number of binary nucleon-nucleon collisions (Ncoll), with an indication that the ϒ(1S) state is also suppressed. The present measurement extends the number of participant nucleons in the collision (Npart) by 20% compared to Au+Au collisions, and allows us to study a system with higher energy density. We observe a suppression in both the ϒ(1S+2S+3S) and ϒ(1S) yields in central U+U data, which consolidates and extends the previously observed suppression trend in Au+Au collisions.

AB - We present a measurement of the inclusive production of ϒ mesons in U+U collisions at sNN=193 GeV at midrapidity (|y|<1). Previous studies in central Au+Au collisions at sNN=200 GeV show a suppression of ϒ(1S+2S+3S) production relative to expectations from the ϒ yield in p+p collisions scaled by the number of binary nucleon-nucleon collisions (Ncoll), with an indication that the ϒ(1S) state is also suppressed. The present measurement extends the number of participant nucleons in the collision (Npart) by 20% compared to Au+Au collisions, and allows us to study a system with higher energy density. We observe a suppression in both the ϒ(1S+2S+3S) and ϒ(1S) yields in central U+U data, which consolidates and extends the previously observed suppression trend in Au+Au collisions.

UR - http://www.scopus.com/inward/record.url?scp=85015250538&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.94.064904

DO - 10.1103/PhysRevC.94.064904

M3 - Article

AN - SCOPUS:85015250538

SN - 2469-9985

VL - 94

JO - Physical Review C

JF - Physical Review C

IS - 6

M1 - 064904

ER -

ϒ production in U + U collisions at sNN =193 GeV measured with the STAR experiment

Abstract

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