γ suppression at forward rapidity in Pb-Pb collisions at √sNN=5.02 TeV
Inclusive ϒ(1S) and ϒ(2S) production have been measured in Pb-Pb collisions at the centre-of-mass energy per nucleon-nucleon pair sNN=5.02 TeV, using the ALICE detector at the CERN LHC. The ϒ mesons are reconstructed in the centre-of-mass rapidity interval 2.5<y<4 and in the transverse-momentu...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
2019
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| In: |
Physics letters
Year: 2019, Volume: 790, Pages: 89-101 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2018.11.067 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1016/j.physletb.2018.11.067 Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0370269318309973 
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| Author Notes: | ALICE Collaboration* |
MARC
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| 245 | 1 | 0 | |a γ suppression at forward rapidity in Pb-Pb collisions at √sNN=5.02 TeV |c ALICE Collaboration* |
| 246 | 3 | 0 | |a sqrt |
| 246 | 3 | 0 | |a root s(NN) |
| 246 | 3 | 3 | |a Gamma suppression at forward rapidity in Pb-Pb collisions at square root s NN = 5.02TeV |
| 264 | 1 | |c 2019 | |
| 300 | |a 13 | ||
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| 500 | |a Available online 29 December 2018 | ||
| 500 | |a Gesehen am 28.05.2019 | ||
| 500 | |a Im Titel ist gamma als griechischer Buchstabe dargestellt | ||
| 500 | |a Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt | ||
| 500 | |a *ALICE Collaboration: S. Acharya, V. Anguelov, M. Arslandok, M.C. Danisch, A. Deisting, V.J.G. Feuillard, P. Glässel, J. Kim, M. Kim, S. Klewin, M.K. Köhler, L. Leardini, J. Mercado Pérez, A. Ohlson, Y. Pachmayer, K. Reygers, R. Schicker, M.O. Schmidt, J. Stachel, D.F. Weiser, B. Windelband [und 995 weitere] | ||
| 520 | |a Inclusive ϒ(1S) and ϒ(2S) production have been measured in Pb-Pb collisions at the centre-of-mass energy per nucleon-nucleon pair sNN=5.02 TeV, using the ALICE detector at the CERN LHC. The ϒ mesons are reconstructed in the centre-of-mass rapidity interval 2.5<y<4 and in the transverse-momentum range pT<15 GeV/c, via their decays to muon pairs. In this Letter, we present results on the inclusive ϒ(1S) nuclear modification factor RAA as a function of collision centrality, transverse momentum and rapidity. The ϒ(1S) and ϒ(2S) RAA, integrated over the centrality range 0-90%, are 0.37±0.02(stat)±0.03(syst) and 0.10±0.04(stat)±0.02(syst), respectively, leading to a ratio RAAϒ(2S)/RAAϒ(1S) of 0.28±0.12(stat)±0.06(syst). The observed ϒ(1S) suppression increases with the centrality of the collision and no significant variation is observed as a function of transverse momentum and rapidity. | ||
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| SRT | |a ALICEACHARSUPPRESSIO2019 | ||