J/ψ production at high transverse momenta in p+p and Au + Au collisions at sNN=200GeV

doi:10.1016/j.physletb.2013.04.010

J/ψ production at high transverse momenta in p+p and Au + Au collisions at sNN=200GeV

Physics And Astronomy

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Abstract

We report J/ψ spectra for transverse momenta p_T>5GeV/c at mid-rapidity in p+p and Au+Au collisions at sNN=200GeV. The inclusive J/ψ spectrum and the extracted B-hadron feed-down are compared to models incorporating different production mechanisms. We observe significant suppression of the J/ψ yields for p_T>5GeV/c in 0-30% central Au+Au collisions relative to the p+p yield scaled by the number of binary nucleon-nucleon collisions in Au+Au collisions. In 30-60% mid-central collisions, no such suppression is observed. The level of suppression is consistently less than that of high-p_T π^± and low-p_T J/ψ at RHIC and high-p_T J/ψ at the LHC.

Original language	English
Pages (from-to)	55-62
Number of pages	8
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	722
Issue number	1-3
DOIs	https://doi.org/10.1016/j.physletb.2013.04.010
State	Published - May 13 2013

Bibliographical note

Funding Information:
We thank the RHIC Operations Group and RCF at BNL , the NERSC Center at LBNL and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Offices of NP and HEP within the US DOE Office of Science , the US NSF , the Sloan Foundation , the DFG cluster of excellence ‘Origin and Structure of the Universe’ of Germany , CNRS/IN2P3 , FAPESP CNPq of Brazil , Ministry of Ed. and Sci. of the Russian Federation , NNSFC , CAS , MoST , and MoE of China , GA and MSMT of the Czech Republic , FOM and NWO of the Netherlands , DAE , DST , and CSIR of India , Polish Ministry of Sci. and Higher Ed. , Korea National Research Foundation , Ministry of Sci., Ed. and Sports of the Rep. of Croatia , and RosAtom of Russia .

Keywords

Color-screening
Heavy-ion collisions
J/ψ suppression
Quarkonium
STAR

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.physletb.2013.04.010

Cite this

@article{2ac25964297d4da7ad8e5d8edb1c3a5e,

title = "J/ψ production at high transverse momenta in p+p and Au + Au collisions at sNN=200GeV",

abstract = "We report J/ψ spectra for transverse momenta pT>5GeV/c at mid-rapidity in p+p and Au+Au collisions at sNN=200GeV. The inclusive J/ψ spectrum and the extracted B-hadron feed-down are compared to models incorporating different production mechanisms. We observe significant suppression of the J/ψ yields for pT>5GeV/c in 0-30% central Au+Au collisions relative to the p+p yield scaled by the number of binary nucleon-nucleon collisions in Au+Au collisions. In 30-60% mid-central collisions, no such suppression is observed. The level of suppression is consistently less than that of high-pT π± and low-pT J/ψ at RHIC and high-pT J/ψ at the LHC.",

keywords = "Color-screening, Heavy-ion collisions, J/ψ suppression, Quarkonium, STAR",

author = "L. Adamczyk and G. Agakishiev and Aggarwal, {M. M.} and Z. Ahammed and Alakhverdyants, {A. V.} and I. Alekseev and J. Alford and Anson, {C. D.} and D. Arkhipkin and E. Aschenauer and Averichev, {G. S.} and J. Balewski and A. Banerjee and Z. Barnovska and Beavis, {D. R.} and R. Bellwied and Betancourt, {M. J.} and Betts, {R. R.} and A. Bhasin and Bhati, {A. K.} and H. Bichsel and J. Bielcik and J. Bielcikova and Bland, {L. C.} and Bordyuzhin, {I. G.} and W. Borowski and J. Bouchet and Brandin, {A. V.} and Brovko, {S. G.} and E. Bruna and S. B{\"u}ltmann and I. Bunzarov and Burton, {T. P.} and J. Butterworth and Cai, {X. Z.} and H. Caines and {Calder{\'o}n de la Barca S{\'a}nchez}, M. and D. Cebra and R. Cendejas and Cervantes, {M. C.} and P. Chaloupka and Z. Chang and S. Chattopadhyay and Chen, {H. F.} and Chen, {J. H.} and Chen, {J. Y.} and L. Chen and J. Cheng and R. Fatemi and W. Korsch",

note = "Funding Information: We thank the RHIC Operations Group and RCF at BNL , the NERSC Center at LBNL and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Offices of NP and HEP within the US DOE Office of Science , the US NSF , the Sloan Foundation , the DFG cluster of excellence {\textquoteleft}Origin and Structure of the Universe{\textquoteright} of Germany , CNRS/IN2P3 , FAPESP CNPq of Brazil , Ministry of Ed. and Sci. of the Russian Federation , NNSFC , CAS , MoST , and MoE of China , GA and MSMT of the Czech Republic , FOM and NWO of the Netherlands , DAE , DST , and CSIR of India , Polish Ministry of Sci. and Higher Ed. , Korea National Research Foundation , Ministry of Sci., Ed. and Sports of the Rep. of Croatia , and RosAtom of Russia .",

year = "2013",

month = may,

day = "13",

doi = "10.1016/j.physletb.2013.04.010",

language = "English",

volume = "722",

pages = "55--62",

number = "1-3",

}

TY - JOUR

T1 - J/ψ production at high transverse momenta in p+p and Au + Au collisions at sNN=200GeV

AU - Adamczyk, L.

AU - Agakishiev, G.

AU - Aggarwal, M. M.

AU - Ahammed, Z.

AU - Alakhverdyants, A. V.

AU - Alekseev, I.

AU - Alford, J.

AU - Anson, C. D.

AU - Arkhipkin, D.

AU - Aschenauer, E.

AU - Averichev, G. S.

AU - Balewski, J.

AU - Banerjee, A.

AU - Barnovska, Z.

AU - Beavis, D. R.

AU - Bellwied, R.

AU - Betancourt, M. J.

AU - Betts, R. R.

AU - Bhasin, A.

AU - Bhati, A. K.

AU - Bichsel, H.

AU - Bielcik, J.

AU - Bielcikova, J.

AU - Bland, L. C.

AU - Bordyuzhin, I. G.

AU - Borowski, W.

AU - Bouchet, J.

AU - Brandin, A. V.

AU - Brovko, S. G.

AU - Bruna, E.

AU - Bültmann, S.

AU - Bunzarov, I.

AU - Burton, T. P.

AU - Butterworth, J.

AU - Cai, X. Z.

AU - Caines, H.

AU - Calderón de la Barca Sánchez, M.

AU - Cebra, D.

AU - Cendejas, R.

AU - Cervantes, M. C.

AU - Chaloupka, P.

AU - Chang, Z.

AU - Chattopadhyay, S.

AU - Chen, H. F.

AU - Chen, J. H.

AU - Chen, J. Y.

AU - Chen, L.

AU - Cheng, J.

AU - Fatemi, R.

AU - Korsch, W.

N1 - Funding Information: We thank the RHIC Operations Group and RCF at BNL , the NERSC Center at LBNL and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Offices of NP and HEP within the US DOE Office of Science , the US NSF , the Sloan Foundation , the DFG cluster of excellence ‘Origin and Structure of the Universe’ of Germany , CNRS/IN2P3 , FAPESP CNPq of Brazil , Ministry of Ed. and Sci. of the Russian Federation , NNSFC , CAS , MoST , and MoE of China , GA and MSMT of the Czech Republic , FOM and NWO of the Netherlands , DAE , DST , and CSIR of India , Polish Ministry of Sci. and Higher Ed. , Korea National Research Foundation , Ministry of Sci., Ed. and Sports of the Rep. of Croatia , and RosAtom of Russia .

PY - 2013/5/13

Y1 - 2013/5/13

N2 - We report J/ψ spectra for transverse momenta pT>5GeV/c at mid-rapidity in p+p and Au+Au collisions at sNN=200GeV. The inclusive J/ψ spectrum and the extracted B-hadron feed-down are compared to models incorporating different production mechanisms. We observe significant suppression of the J/ψ yields for pT>5GeV/c in 0-30% central Au+Au collisions relative to the p+p yield scaled by the number of binary nucleon-nucleon collisions in Au+Au collisions. In 30-60% mid-central collisions, no such suppression is observed. The level of suppression is consistently less than that of high-pT π± and low-pT J/ψ at RHIC and high-pT J/ψ at the LHC.

AB - We report J/ψ spectra for transverse momenta pT>5GeV/c at mid-rapidity in p+p and Au+Au collisions at sNN=200GeV. The inclusive J/ψ spectrum and the extracted B-hadron feed-down are compared to models incorporating different production mechanisms. We observe significant suppression of the J/ψ yields for pT>5GeV/c in 0-30% central Au+Au collisions relative to the p+p yield scaled by the number of binary nucleon-nucleon collisions in Au+Au collisions. In 30-60% mid-central collisions, no such suppression is observed. The level of suppression is consistently less than that of high-pT π± and low-pT J/ψ at RHIC and high-pT J/ψ at the LHC.

KW - Color-screening

KW - Heavy-ion collisions

KW - J/ψ suppression

KW - Quarkonium

KW - STAR

UR - http://www.scopus.com/inward/record.url?scp=84876837006&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84876837006&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2013.04.010

DO - 10.1016/j.physletb.2013.04.010

M3 - Article

AN - SCOPUS:84876837006

VL - 722

SP - 55

EP - 62

IS - 1-3

ER -

J/ψ production at high transverse momenta in p+p and Au + Au collisions at sNN=200GeV

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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