The photoproduction of bottom quarks in events with two jets and a muon has been measured with the ZEUS detector at HERA using an integrated luminosity of 110 pb-1. The fraction of jets containing b quarks was extracted from the transverse momentum distribution of the muon relative to the closest jet. Differential cross sections for bottom production as a function of the transverse momentum and pseudorapidity of the muon, of the associated jet and of xÎ³jets, the fraction of the photon's momentum participating in the hard process, are compared with MC models and QCD predictions made at next-to-leading order. The latter give a good description of the data.
|Titolo:||Bottom photoproduction measured using decays into muons in dijet events in ep collisions at √s=318 GeV|
|Data di pubblicazione:||2004|
|Appare nelle tipologie:||1.1.1 Articolo su rivista con DOI|