Measurement of quarkonium production at forward rapidity in pp collisions at √s = 7 TeV = The ALICE Collaboration: B. Abelev, V. Anguelov, O. Busch, P. Glässel, J. Klein, D. Lohner, X.-G. Lu, A. Maire, J. Mercado Pérez, H. Oeschler, K. Oyama, Y. Pachmayer, K. Reygers, R. Schicker, J. Stachel, J.H. Stiller, M.A. Völkl, J. Wilkinson, B. Windelband, M. Winn, A. Zimmermann [und weitere]

The inclusive production cross sections at forward rapidity of J / ψ , ψ ( 2 S ) , Υ (1S) and Υ (2S) are measured in pp collisions at √s = 7 TeV with the ALICE detector at the LHC. The analysis is based on a data sample corresponding to an integrated luminosity of 1.35 pb - 1 . Quarkonia are reconst...

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Hauptverfasser:	Abelev, Betty (VerfasserIn) , Angelov, Venelin (VerfasserIn) , Busch, Oliver (VerfasserIn) , Glässel, Peter (VerfasserIn) , Klein, Jochen (VerfasserIn) , Lohner, Daniel (VerfasserIn) , Lu, Xianguo (VerfasserIn) , Maire, Antonin (VerfasserIn) , Mercado Pérez, Jorge (VerfasserIn) , Oeschler, Helmut (VerfasserIn) , Oyama, Ken (VerfasserIn) , Pachmayer, Yvonne C. (VerfasserIn) , Reygers, Klaus (VerfasserIn) , Schicker, Rainer (VerfasserIn) , Stachel, Johanna (VerfasserIn) , Stiller, Johannes Hendrik (VerfasserIn) , Völkl, Martin (VerfasserIn) , Wilkinson, Jeremy (VerfasserIn) , Windelband, Bernd (VerfasserIn) , Winn, Michael (VerfasserIn) , Zimmermann, Alice (VerfasserIn)
Körperschaft:	ALICE (VerfasserIn)
Dokumenttyp:	Article (Journal)
Sprache:	Englisch
Veröffentlicht:	13 August 2014
In:	The European physical journal. C, Particles and fields Year: 2014, Jahrgang: 74, Heft: 8
ISSN:	1434-6052
DOI:	10.1140/epjc/s10052-014-2974-4
Online-Zugang:	Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1140/epjc/s10052-014-2974-4 Verlag, lizenzpflichtig, Volltext: https://link.springer.com/article/10.1140/epjc/s10052-014-2974-4
Verfasserangaben:	The ALICE Collaboration

Beschreibung
Zusammenfassung:	The inclusive production cross sections at forward rapidity of J / ψ , ψ ( 2 S ) , Υ (1S) and Υ (2S) are measured in pp collisions at √s = 7 TeV with the ALICE detector at the LHC. The analysis is based on a data sample corresponding to an integrated luminosity of 1.35 pb - 1 . Quarkonia are reconstructed in the dimuon-decay channel and the signal yields are evaluated by fitting the μ + μ - invariant mass distributions. The differential production cross sections are measured as a function of the transverse momentum p T and rapidity y , over the ranges 0 < p T < 20 GeV/c for J / ψ , 0 < p T < 12 GeV/c for all other resonances and for 2.5 < y < 4 . The measured cross sections integrated over p T and y , and assuming unpolarized quarkonia, are: σ J / ψ = 6.69 ± 0.04 ± 0.63 μ b, σ ψ ( 2 S ) = 1.13 ± 0.07 ± 0.19 & μ b, σ Υ ( 1 S ) = 54.2 ± 5.0 ± 6.7  nb and σ Υ ( 2 S ) = 18.4 ± 3.7 ± 2.9, where the first uncertainty is statistical and the second one is systematic. The results are compared to measurements performed by other LHC experiments and to theoretical models.
Beschreibung:	Im Titel steht der Buchstabe s unter dem Wurzelsymbol Gesehen am 18.09.2020
Beschreibung:	Online Resource
ISSN:	1434-6052
DOI:	10.1140/epjc/s10052-014-2974-4

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