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 scatteringat HERA using decays into electrons
DE PASQUALE, Salvatore
2011
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).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
