RT Journal Article
T1 Beauty production in pp collisions at √s=2.76 TeV measured via semi-electronic decays
A1 ALICE Collaboration, 
A1 Armesto Pérez, Néstor
A1 González Ferreiro, Elena
A1 Pajares Vales, Carlos
A1 Salgado López, Carlos Alberto
K1 LHC
K1 ALICE experiment
K1 Pp collisions
K1 Single electrons
K1 Heavy-flavour production
K1 Beauty production
AB The ALICE Collaboration at the LHC reports measurement of the inclusive production cross section of electrons from semi-leptonic decays of beauty hadrons with rapidity |y| <0.8and transverse momentum 1 <pT<10GeV/c, in pp collisions at √s=2.76TeV. Electrons not originating from semi-electronic decay of beauty hadrons are suppressed using the impact parameter of the corresponding tracks. The production cross section of beauty decay electrons is compared to the result obtained with an alternative method which uses the distribution of the azimuthal angle between heavy-flavour decay electrons and charged hadrons. Perturbative QCD predictions agree with the measured cross section within the experimental and theoretical uncertainties. The integrated visible cross section, σb→e=3.47 ±0.40(stat)+1.12−1.33(sys) ±0.07(norm)μb, was extrapolated to full phase space using Fixed Order plus Next-to-Leading Log (FONLL) calculations to obtain the total b¯bproduction cross section, σb¯b=130 ±15.1(stat)+42.1−49.8(sys)+3.4−3.1(extr) ±2.5(norm) ±4.4(BR)μb.
PB Elsevier
SN 0370-2693
YR 2014
FD 2014
LK http://hdl.handle.net/10347/21978
UL http://hdl.handle.net/10347/21978
LA eng
NO Abelev, B., Adam, J., Adamová, D., Aggarwal, M. M., Rinella, G. A., Agnello, M., ... & Ahmed, I. (2014). Beauty production in pp collisions at √s= 2.76 TeV measured via semi-electronic decays. Physics letters B, 738, 97-108
DS Minerva
RD 24 abr 2026