Measurement of heavy-quark jet photoproduction at HERA

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

pb^{-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.

Note:

Long author list - awaiting processing •
35 pages, 9 figures, 3 tables

heavy quark: jet
jet: photoproduction
differential cross section: measured
ZEUS
electron p: inclusive reaction
jet: multiple production
yield: (bottom charm)
track data analysis: vertex
decay: path length
transverse momentum dependence

References(49)

Figures(0)

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