Measurement of heavy-quark jet photoproduction at HERA

Abstract

Photoproduction of beauty and charm quarks in events with at least two jets has been measured with the ZEUS detector at HERA using an integrated luminosity of 133 $p{b}^{-1}$. The fractions of jets containing b and c quarks were extracted using the invariant mass of charged tracks associated with secondary vertices and the decay-length significance of these vertices. Differential cross sections as a function of jet transverse momentum, $p_T^{\text{jet}}$, and pseudorapidity, ${\eta }^{\text{jet}}$, were measured. The data are compared with previous measurements and are well described by next-to-leading-order QCD predictions.

arXiv comment35 pages, 9 figures, 3 tables

References in corpus (25)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• High-Energy-Physics Event Generation with PYTHIA 6.1
• Global QCD Analysis of Parton Structure of the Nucleon: CTEQ5 Parton Distributions
• Successive Combination Jet Algorithm For Hadron Collisions
• Improved Parton Distributions from Global Analysis of Recent Deep Inelastic Scattering and Inclusive Jet Data
• Production and Hadronization of Heavy Quarks
• Total Cross Sections for Heavy Flavour Production at HERA
• Heavy Quark Correlations in Photon-Hadron Collisions
• Differential Distributions for Heavy Flavour Production at HERA
• A Phenomenological Study of Heavy-Quark Fragmentation Functions in e+e- Annihilation
• The design and performance of the ZEUS Micro Vertex detector
• Pentaquarks in high-energy colliding experiments: perspectives from HERA
• Measurement of open beauty production in photoproduction at HERA
• The Spectrometer System for Measuring ZEUS Luminosity at HERA
• Measurement of charm fragmentation ratios and fractions in photoproduction at HERA
• Measurement of Beauty Production at HERA Using Events with Muons and Jets
• Measurement of inclusive D*+- and associated dijet cross sections in photoproduction at HERA
• Beauty photoproduction measured using decays into muons in dijet events in ep collisions at $\sqrt{s}$=318 GeV
• Measurement of Charm and Beauty Photoproduction at HERA using D* mu Correlations
• Measurement of Charm and Beauty Dijet Cross Sections in Photoproduction at HERA using the H1 Vertex Detector
• Inclusive jet cross sections and dijet correlations in $D^{\ast \pm }$ photoproduction at HERA
• Dijet angular distributions in photoproduction of charm at HERA
• Beauty photoproduction using decays into electrons at HERA
• Measurement of open beauty production at HERA in the D* muon final state
• Inclusive D* Meson Cross Sections and D* Jet Correlations in Photoproduction at HERA

Cited by in corpus (4)

• The Hadronic Final State at HERA
• Measurement of Beauty Photoproduction near Threshold using Di-electron Events with the H1 Detector at HERA
• Charm, Beauty and Top at HERA
• Inclusive photoproduction of bottom quarks for low and medium pT in the general-mass variable-flavour-number scheme