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: | , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
November 29, 2018
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| 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 |
| 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 | |
| 300 | |a 36 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
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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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