Measurement of the relative rate of prompt Χ c0 , Χ c1 and Χ c2 production at √s = 7TeV
Journal
Journal of High Energy Physics
Journal Volume
2013
Journal Issue
10
Date Issued
2013
Author(s)
Aaij, R. et al. (LHCb Collaboration)
Abstract
Prompt production of charmonium Χc0, Χc1 and Χc2 mesons is studied using proton-proton collisions at the LHC at a centre-of-mass energy of √s = 7TeV. The Χc mesons are identified through their decay to J/Φ,γ with J/Φ → μ+μ- using photons that converted in the detector. A data sample, corresponding to an integrated luminosity of 1.0 fb-1 collected by the LHCb detector, is used to measure the relative prompt production rate of Χc1 and Χc2 in the rapidity range 2:0 < y < 4:5 as a function of the J/Φ transverse momentum from 3 to 20 GeV=c. First evidence for Χc0 meson production at a high-energy hadron collider is also presented. © SISSA 2013.
SDGs
Type
journal article