Jet production in charged current deep inelastic e + p scatteringat HERA (original) (raw)

2003, The European Physical Journal C - Particles and Fields

The production rates and substructure of jets have been studied in charged current deep inelastic e + p scattering for Q 2 > 200 GeV 2 with the ZEUS detector at HERA using an integrated luminosity of 110.5 pb −1. Inclusive jet cross sections are presented for jets with transverse energies E jet T > 14 GeV and pseudorapidities in the range −1 < η jet < 2. Dijet cross sections are presented for events with a jet having E jet T > 14 GeV and a second jet having E jet T > 5 GeV. Measurements of the mean subjet multiplicity, n sbj , of the inclusive jet sample are presented. Predictions based on parton-shower Monte Carlo models and next-toleading-order QCD calculations are compared to the measurements. The value of α s (M Z), determined from n sbj at y cut = 10 −2 for jets with 25 < E jet T < 119 GeV, is α s (M Z) = 0.1202 ± 0.0052 (stat.) +0.0060 −0.0019 (syst.) +0.0065 −0.0053 (th.