Study of Z Bosons Produced in Association with Charm in the Forward Region
LHCb Collaboration, R. Bernet, K. Müller, P. Owen, N. Serra, O. Steinkamp, M. Adinolfi
Abstract
Events containing a Z boson and a charm jet are studied for the first time in the forward region of proton-proton collisions. The data sample used corresponds to an integrated luminosity of 6 fb^{-1} collected at a center-of-mass energy of 13 TeV with the LHCb detector. In events with a Z boson and a jet, the fraction of charm jets is determined in intervals of Z-boson rapidity in the range 2.0<y(Z)<4.5. A sizable enhancement is observed in the forwardmost y(Z) interval, which could be indicative of a valencelike intrinsic-charm component in the proton wave function.
Topics & Concepts
PhysicsParticle physicsCharm (quantum number)LuminosityBosonJet (fluid)ProtonRapidityNuclear physicsLarge Hadron ColliderAstrophysicsThermodynamicsGalaxyParticle physics theoretical and experimental studiesHigh-Energy Particle Collisions ResearchAstrophysics and Cosmic Phenomena