Measurement of the inclusive phi cross-section in pp collisions at sqrt(s) = 7 TeV

Details Measurement of the inclusive phi cross-section in pp collisions at sqrt(s) = 7 TeV Measurement of the inclusive phi cross-section in pp collisions at sqrt(s) = 7 TeV

2011-07-20

arxiv.org/abs/1107.3935v1

Phys.Lett.B703:267-273,2011

Physics

High Energy Physics

High Energy Physics - Experiment

10 pages, 2 figures

Scientific paper

10.1016/j.physletb.2011.08.017

The cross-section for inclusive phi meson production in pp collisions at a centre-of-mass energy of sqrt(s) = 7 TeV has been measured with the LHCb detector at the Large Hadron Collider. The differential cross-section is measured as a function of the phi transverse momentum p_T and rapidity y in the region 0.6 < p_T < 5.0 GeV/c and 2.44 < y < 4.06. The cross-section for inclusive phi production in this kinematic range is sigma(pp -> phi X) = 1758 pm 19(stat) ^{+43}_{-14}(syst) pm 182(scale) microbarn, where the first systematic uncertainty depends on the p_T and y region and the second is related to the overall scale. Predictions based on the Pythia 6.4 generator underestimate the cross-section.

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