Exclusive J/ψ production at the LHC in the kT factorisation approach. (24th January 2017)

• Record Type: Journal Article
• Authors: Jones, S P; Martin, A D; Ryskin, M G; Teubner, T
• Is Part Of: Journal of physics. Volume 44:Number 3(2017:Mar.)
• Publication Date: 2017-01-24
• Subjects: QCD -- LHC -- J/psi; Nuclear physics -- Periodicals; Particles (Nuclear physics) -- Periodicals; Physique nucléaire -- Périodiques; Particules (Physique nucléaire) -- Périodiques; Kernfysica; Elementaire deeltjes; 539.7
• DOI: 10.1088/1361-6471/aa56ea
• Languages: English
• ISSNs: 0954-3899

Abstract

Abstract: The recent LHCb data for exclusive J / ψ peripheral production at 13 TeV motivate an improved 'NLO' analysis to estimate the gluon distribution at low x in which we re-calculate the rapidity gap survival factors and use a more precise expression for the photon flux. We comment on the difference between the k T and collinear factorisation approaches.