A Study of Neutral Kaons and Charged Particles in Photoproduced Jets at HERA

[摘要] Multiplicities for K0 and charged particles in hard photoproduction events with 0.2 ≤ y ≤ 0.85, containing a jet with EJETT ≥8 GeV and |eta| ≤ 0.5, have been measured at HERA using the ZEUS detector. The K0 and charged particle multiplicities as a function of transverse momentum are generally well described by the PYTHIA Monte Carlo with default hadronisation parameters, however, PYTHIA underestimates the K0and charged particle multiplicities at large pseudorapidity.

[发布机构] University:University of Glasgow

[关键词] High energy physics, Nuclear physics and radiation