The inclusive production cross sections at forward rapidity of J/ψ, ψ(2S), 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) . 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(2S) =1.13±0.07±0.19 μ b, σ Υ(1S) =54.2±5.0±6.7 nb and σ Υ(2S) =18.4±3.7±2.9 nb, 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. © 2014, The Author(s).

Measurement of quarkonium production at forward rapidity in pp at √s=7 TeV / Abelev, B., Adam, J., Adamová, D., Aggarwal, M.M., Agnello, M., Agostinelli, A., Agrawal, N., Ahammed, Z., Ahmad, N., Ahmad Masoodi, A., Ahmed, I., Ahn, S.U., Ahn, S.A., Aimo, I., Aiola, S., Ajaz, M., Akindinov, A., Aleksandrov, D., Alessandro, B., Alexandre, D., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - STAMPA. - 74:8(2014). [10.1140/epjc/s10052-014-2974-4]

Measurement of quarkonium production at forward rapidity in pp at √s=7 TeV

BRUNO, Giuseppe Eugenio;
2014

Abstract

The inclusive production cross sections at forward rapidity of J/ψ, ψ(2S), 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

2014
https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-014-2974-4
Measurement of quarkonium production at forward rapidity in pp at √s=7 TeV / Abelev, B., Adam, J., Adamová, D., Aggarwal, M.M., Agnello, M., Agostinelli, A., Agrawal, N., Ahammed, Z., Ahmad, N., Ahmad Masoodi, A., Ahmed, I., Ahn, S.U., Ahn, S.A., Aimo, I., Aiola, S., Ajaz, M., Akindinov, A., Aleksandrov, D., Alessandro, B., Alexandre, D., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - STAMPA. - 74:8(2014). [10.1140/epjc/s10052-014-2974-4]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/57006
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