Study of [upsilon] production in pPb collisions at √sNN=8.16TeV

The production of ϒ(nS) mesons (n = 1, 2, 3) in pPb and Pbp collisions at a centre-of-mass energy per nucleon pair sNN−−−√=8.16sNN=8.16 \sqrt{s_{\mathrm{NN}}}=8.16 TeV is measured by the LHCb experiment, using a data sample corresponding to an integrated luminosity of 31.8 nb−1. The ϒ(nS) mesons are...

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Hauptverfasser: Aaij, Roel (VerfasserIn) , D'Argent, Philippe (VerfasserIn) , Bachmann, Sebastian (VerfasserIn) , Berninghoff, Daniel (VerfasserIn) , Braun, Svende (VerfasserIn) , Comerma-Montells, Albert (VerfasserIn) , De Cian, Michel (VerfasserIn) , Dziewiecki, Michal (VerfasserIn) , Gerick, David (VerfasserIn) , Grabowski, Jascha (VerfasserIn) , Han, Xiaoxue (VerfasserIn) , Hansmann-Menzemer, Stephanie (VerfasserIn) , Kecke, Matthieu (VerfasserIn) , Kopecná, Renata (VerfasserIn) , Leverington, Blake (VerfasserIn) , Marks, Jörg (VerfasserIn) , Mitzel, Dominik (VerfasserIn) , Neubert, Sebastian (VerfasserIn) , Piucci, Alessio (VerfasserIn) , Skidmore, Nicola (VerfasserIn) , Stahl, Marian (VerfasserIn) , Stemmle, Simon (VerfasserIn) , Tilburg, Jeroen van (VerfasserIn) , Uwer, Ulrich (VerfasserIn) , Zhelezov, Alexey (VerfasserIn) , Hu, Jiangqiao (VerfasserIn)
Körperschaft: LHCb Collaboration (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: November 29, 2018
In: Journal of high energy physics
Year: 2018, Heft: 11
ISSN:1029-8479
DOI:10.1007/JHEP11(2018)194
Online-Zugang:Verlag, Volltext: https://doi.org/10.1007/JHEP11(2018)194
Verlag, Volltext: https://link.springer.com/content/pdf/10.1007%2FJHEP11%282018%29194.pdf
Volltext
Verfasserangaben:the LHCb Collaboration

MARC

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245 1 0 |a Study of [upsilon] production in pPb collisions at √sNN=8.16TeV  |c the LHCb Collaboration 
246 3 0 |a sqrt (s_NN) 
246 3 3 |a Study of upsilon production in pPb collisions at square root s NN = 8.16 TeV 
264 1 |c November 29, 2018 
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500 |a Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt 
500 |a Im Text ist upsilon als griechischer Buchstabe dargestellt 
500 |a The LHCb Collaboration: R. Aaij, P. d'Argent, S. Bachmann, D. Berninghoff, S. Braun, A. Comerma-Montells, M. De Cian, M. Dziewiecki, D. Gerick, J.P. Grabowski, X. Han, S. Hansmann-Menzemer, J. Hu, M. Kecke, R. Kopecna, B. Leverington, J. Marks, D.S. Mitzel, S. Neubert, A. Piucci, N. Skidmore, M. Stahl, S. Stemmle, J. van Tilburg, U. Uwer, A. Zhelezov [und weitere] 
500 |a Gesehen am 13.06.2019 
520 |a The production of ϒ(nS) mesons (n = 1, 2, 3) in pPb and Pbp collisions at a centre-of-mass energy per nucleon pair sNN−−−√=8.16sNN=8.16 \sqrt{s_{\mathrm{NN}}}=8.16 TeV is measured by the LHCb experiment, using a data sample corresponding to an integrated luminosity of 31.8 nb−1. The ϒ(nS) mesons are reconstructed through their decays into two opposite-sign muons. The measurements comprise the differential production cross-sections of the ϒ(1S) and ϒ(2S) states, their forward-to-backward ratios and nuclear modification factors. The measurements are performed as a function of the transverse momentum pT and rapidity in the nucleon-nucleon centre-of-mass frame y* of the ϒ(nS) states, in the kinematic range pT < 25 GeV/c and 1.5 < y* < 4.0 (−5.0 < y* < −2.5) for pPb (Pbp) collisions. In addition, production cross-sections for ϒ(3S) are measured integrated over phase space and the production ratios between all three ϒ(nS) states are determined. Suppression for bottomonium in proton-lead collisions is observed, which is particularly visible in the ratios. The results are compared to theoretical models. Open image in new window 
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