The cross-section for inclusive ϕ meson production in pp collisions at a centre-of-mass energy of sqrt(s)=7TeV has been measured with the LHCb detector at the Large Hadron Collider. The differential cross-section is measured as a function of the ϕ transverse momentum pT and rapidity y in the region 0.6<pT<5.0 GeV/c and 2.44<y<4.06. The cross-section for inclusive ϕ production in this kinematic range is sigma(pp ->ϕX) = 1758 ± 19(stat) +43−14(syst) ± 182(scale) μb,, where the first systematic uncertainty depends on the pT and y region and the second is related to the overall scale. Predictions based on the Pythia 6.4 generator underestimate the cross-section.
Measurement of the inclusive ϕ cross-section in pp collisions at sqrt(s)=7TeV
AURIEMMA, Giulio;SATRIANO, Celestina;
2011-01-01
Abstract
The cross-section for inclusive ϕ meson production in pp collisions at a centre-of-mass energy of sqrt(s)=7TeV has been measured with the LHCb detector at the Large Hadron Collider. The differential cross-section is measured as a function of the ϕ transverse momentum pT and rapidity y in the region 0.6I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.