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[Phi]-meson production at forward rapidity in p-Pb collisions at √sNN=5.02 TeV and in pp collisions at √s=2.76 TeV

The first study of ϕ-meson production in p-Pb collisions at forward and backward rapidity, at a nucleon-nucleon centre-of-mass energy sNN=5.02 TeV, has been performed with the ALICE apparatus at the LHC. The ϕ-mesons have been identified in the dimuon decay channel in the transverse momentum (pT) ra...

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Hauptverfasser: Adam, Jaroslav (VerfasserIn) , Angelov, Venelin (VerfasserIn) , Arslandok, Mesut (VerfasserIn) , Busch, Oliver (VerfasserIn) , Deisting, Alexander (VerfasserIn) , Glässel, Peter (VerfasserIn) , Knichel, Michael Linus (VerfasserIn) , Leardini, Lucia (VerfasserIn) , Mercado Pérez, Jorge (VerfasserIn) , Oeschler, Helmut (VerfasserIn) , Ohlson, Alice (VerfasserIn) , Oyama, Ken (VerfasserIn) , Pachmayer, Yvonne C. (VerfasserIn) , Reidt, Felix (VerfasserIn) , Reygers, Klaus (VerfasserIn) , Schicker, Rainer (VerfasserIn) , Stachel, Johanna (VerfasserIn) , Stiller, Johannes Hendrik (VerfasserIn) , Völkl, Martin (VerfasserIn) , Wang, Yifei (VerfasserIn) , Wilkinson, Jeremy (VerfasserIn) , Windelband, Bernd (VerfasserIn) , Winn, Michael (VerfasserIn) , Zimmermann, Alice (VerfasserIn)
Körperschaft: ALICE (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 16 February 2017
In: Physics letters
Year: 2017, Jahrgang: 768, Pages: 203-217
ISSN:1873-2445
DOI:10.1016/j.physletb.2017.01.074
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1016/j.physletb.2017.01.074
Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0370269317301156
Volltext
Verfasserangaben:ALICE Collaboration*
Beschreibung
Zusammenfassung:The first study of ϕ-meson production in p-Pb collisions at forward and backward rapidity, at a nucleon-nucleon centre-of-mass energy sNN=5.02 TeV, has been performed with the ALICE apparatus at the LHC. The ϕ-mesons have been identified in the dimuon decay channel in the transverse momentum (pT) range 1<pT<7 GeV/c, both in the p-going (2.03<y<3.53) and the Pb-going (−4.46<y<−2.96) directions — where y stands for the rapidity in the nucleon-nucleon centre-of-mass — the integrated luminosity amounting to 5.01±0.19 nb−1 and 5.81±0.20 nb−1, respectively, for the two data samples. Differential cross sections as a function of transverse momentum and rapidity are presented. The forward-backward ratio for ϕ-meson production is measured for 2.96<|y|<3.53, resulting in a ratio ∼0.5 with no significant pT dependence within the uncertainties. The pT dependence of the ϕ nuclear modification factor RpPb exhibits an enhancement up to a factor 1.6 at pT=3-4 GeV/c in the Pb-going direction. The pT dependence of the ϕ-meson cross section in pp collisions at s=2.76 TeV, which is used to determine a reference for the p-Pb results, is also presented here for 1<pT<5 GeV/c and 2.5<y<4, for a 78±3 nb−1 integrated luminosity sample.
Beschreibung:Im Titel wird "phi" als griechischer Buchstabe dargestellt
Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt
The ALICE Collaboration: J. Adam, V. Anguelov, M. Arslandok, O. Busch, A. Deisting, P. Glässel, M.L. Knichel, L. Leardini, J. Mercado Pérez, H. Oeschler, A. Ohlson, K. Oyama, Y. Pachmayer, F. Reidt, K. Reygers, R. Schicker, J. Stachel, J.H. Stiller, M.A. Völkl, Y. Wang, J. Wilkinson, B. Windelband, M. Winn, A. Zimmermann [und weitere]
Gesehen am 19.10.2018
Beschreibung:Online Resource
ISSN:1873-2445
DOI:10.1016/j.physletb.2017.01.074

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