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)(jet) T, and pseudora-pidity, eta(jet), were measured. The data are compared with previous measurements and are well described by next-to-leading-order QCD predictions.

Measurement of heavy-quark jet photoproduction at HERA

COSTA, Marco;FERRERO, Maria Italia;MONACO, Vincenzo;SACCHI, Roberto;SOLA, VALENTINA;SOLANO, Ada Maria;
2011-01-01

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 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)(jet) T, and pseudora-pidity, eta(jet), were measured. The data are compared with previous measurements and are well described by next-to-leading-order QCD predictions.
2011
71
1659
-
http://dx.doi.org/10.1140/epjc/s10052-011-1659-5
High Energy Physics; HERA; ZEUS Collaboration.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/98381
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