The production of beauty quarks in ep interactions has been studied with the ZEUS detector at HERA for exchanged four-momentum squared Q(2) > 10 GeV(2), using an integrated luminosity of 363 pb(-1). The beauty events were identified using electrons from semileptonic b decays with a transverse momentum 0.9 < p(T)(e) < 8 GeV and pseudorapidity vertical bar eta(e)vertical bar < 1.5. Cross sections for beauty production were measured and compared with next-to-leading-order QCD calculations. The beauty contribution to the proton structure function F(2) was extracted from the double-differential cross section as a function of Bjorken-x and Q(2).

Measurement of beauty production in deep inelastic scattering at HERA using decays into electrons

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

Abstract

The production of beauty quarks in ep interactions has been studied with the ZEUS detector at HERA for exchanged four-momentum squared Q(2) > 10 GeV(2), using an integrated luminosity of 363 pb(-1). The beauty events were identified using electrons from semileptonic b decays with a transverse momentum 0.9 < p(T)(e) < 8 GeV and pseudorapidity vertical bar eta(e)vertical bar < 1.5. Cross sections for beauty production were measured and compared with next-to-leading-order QCD calculations. The beauty contribution to the proton structure function F(2) was extracted from the double-differential cross section as a function of Bjorken-x and Q(2).
2011
71
1573
-
http://dx.doi.org/10.1140/epjc/s10052-011-1573-x
High Energy Physics; HERA; ZEUS Collaboration.
H. Abramowicz;I. Abt;L. Adamczyk;M. Adamus;R. Aggarwal;S. Antonelli;P. Antonioli;A. Antonov;M. Arneodo;V. Aushev;Y. Aushev;O. Bachynska;A....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/97397
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