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Inclusive J/ψ production at forward and backward rapidity in p-Pb collisions at √sNN=8.16 TeV

, ; Acharya, S; Acosta, F. T.; Adamova, D.; Adolfsson, Jonatan LU ; Aggarwal, M.M; Aglieri Rinella, G; Christiansen, Peter LU ; Ljunggren, Martin LU and Nassirpour, Adrian LU , et al. (2018) In Journal of High Energy Physics 2018(7).
Abstract
Inclusive J/ψ production is studied in p-Pb interactions at a centre-of-mass energy per nucleon-nucleon collision sNN=8.16 TeV, using the ALICE detector at the CERN LHC. The J/ψ meson is reconstructed, via its decay to a muon pair, in the centre-of-mass rapidity intervals 2.03 < ycms < 3.53 and −4.46 < ycms < −2.96, where positive and negative ycms refer to the p-going and Pb-going direction, respectively. The transverse momentum coverage is pT < 20 GeV/c. In this paper, ycms- and pT-differential cross sections for inclusive J/ψ production are presented, and the corresponding nuclear modification factors RpPb are shown. Forward results show a suppression of the J/ψ yield with respect to pp collisions, concentrated in the... (More)
Inclusive J/ψ production is studied in p-Pb interactions at a centre-of-mass energy per nucleon-nucleon collision sNN=8.16 TeV, using the ALICE detector at the CERN LHC. The J/ψ meson is reconstructed, via its decay to a muon pair, in the centre-of-mass rapidity intervals 2.03 < ycms < 3.53 and −4.46 < ycms < −2.96, where positive and negative ycms refer to the p-going and Pb-going direction, respectively. The transverse momentum coverage is pT < 20 GeV/c. In this paper, ycms- and pT-differential cross sections for inclusive J/ψ production are presented, and the corresponding nuclear modification factors RpPb are shown. Forward results show a suppression of the J/ψ yield with respect to pp collisions, concentrated in the region pT ≲ 5 GeV/c. At backward rapidity no significant suppression is observed. The results are compared to previous measurements by ALICE in p-Pb collisions at sNN=5.02 TeV and to theoretical calculations. Finally, the ratios RFB between forward- and backward-ycmsRpPb values are shown and discussed.[Figure not available: see fulltext.]. © 2018, The Author(s). (Less)
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keywords
Heavy Ion Experiments
in
Journal of High Energy Physics
volume
2018
issue
7
publisher
Springer
external identifiers
  • scopus:85050922046
ISSN
1126-6708
DOI
10.1007/JHEP07(2018)160
language
English
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yes
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d61daa66-f580-4689-bb79-4468a62b9c8e
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2018-09-18 09:13:55
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2019-01-06 14:05:17
@article{d61daa66-f580-4689-bb79-4468a62b9c8e,
  abstract     = {Inclusive J/ψ production is studied in p-Pb interactions at a centre-of-mass energy per nucleon-nucleon collision sNN=8.16 TeV, using the ALICE detector at the CERN LHC. The J/ψ meson is reconstructed, via its decay to a muon pair, in the centre-of-mass rapidity intervals 2.03 &lt; ycms &lt; 3.53 and −4.46 &lt; ycms &lt; −2.96, where positive and negative ycms refer to the p-going and Pb-going direction, respectively. The transverse momentum coverage is pT &lt; 20 GeV/c. In this paper, ycms- and pT-differential cross sections for inclusive J/ψ production are presented, and the corresponding nuclear modification factors RpPb are shown. Forward results show a suppression of the J/ψ yield with respect to pp collisions, concentrated in the region pT ≲ 5 GeV/c. At backward rapidity no significant suppression is observed. The results are compared to previous measurements by ALICE in p-Pb collisions at sNN=5.02 TeV and to theoretical calculations. Finally, the ratios RFB between forward- and backward-ycmsRpPb values are shown and discussed.[Figure not available: see fulltext.]. © 2018, The Author(s).},
  author       = {,  and Acharya, S and Acosta, F. T. and Adamova, D. and Adolfsson, Jonatan and Aggarwal, M.M and Aglieri Rinella, G and Christiansen, Peter and Ljunggren, Martin and Nassirpour, Adrian and Oskarsson, Anders and Richert, Tuva and Silvermyr, David and Stenlund, Evert and Vislavicius, Vytautas},
  issn         = {1126-6708},
  keyword      = {Heavy Ion Experiments},
  language     = {eng},
  month        = {07},
  number       = {7},
  publisher    = {Springer},
  series       = {Journal of High Energy Physics},
  title        = {Inclusive J/ψ production at forward and backward rapidity in p-Pb collisions at √sNN=8.16 TeV},
  url          = {http://dx.doi.org/10.1007/JHEP07(2018)160},
  volume       = {2018},
  year         = {2018},
}