The production of K0*(892) and φ(1020) in pp collisions at √s=7 TeV was measured by the ALICE experiment at the LHC. The yields and the transverse momentum spectra d 2N/dydp T at midrapidity y<0. 5 in the range 0<pT<6 GeV/c for K0*(892) and 0. 4<pT<6 GeV/c for φ(1020) are reported and compared to model predictions. Using the yield of pions, kaons, and Ω baryons measured previously by ALICE at √s = 7 TeV, the ratios K */K -, φ/K*, φ/K-, φ/π-, and Ω + Ω/φ are presented. The values of the K*/K-, φ/K* and φ/K- ratios are similar to those found at lower centre-of-mass energies. In contrast, the φ/π- ratio, which has been observed to increase with energy, seems to saturate above 200 GeV. The (Ω + \Ω)φ ratio in the p T range 1-5 GeV/c is found to be in good agreement with the prediction of the HIJING/BB̄ v2. 0 model with a strong colour field. © 2012 CERN for the benefit of the ALICE collaboration.

Production of K0∗(892) and ϕ(1020) in pp collisions at √s=7 TeV

DE CARO, ANNALISA;DE GRUTTOLA, DANIELE;DE PASQUALE, Salvatore;FUSCO GIRARD, Mario;PAGANO, PAOLA;VIRGILI, Tiziano;
2012-01-01

Abstract

The production of K0*(892) and φ(1020) in pp collisions at √s=7 TeV was measured by the ALICE experiment at the LHC. The yields and the transverse momentum spectra d 2N/dydp T at midrapidity y<0. 5 in the range 0
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/3890182
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