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Abelev, B.; Arbor, N.; Conesa Balbastre, G.; Faivre, J.; Furget, C.; Guernane, R.; Kox, S.; Real, J.S.; Silvestre, C.; Vernet, R.; Belikov, I.; Hippolyte, B.; Kuhn, C.; Roy, C.; Sanchez Castro, X.; Senyukov, S.; Aphecetche, Laurent; Batigne, Guillaume; Bergognon, E.; Bregant, M.; Delagrange, H.; Driga, O.; Erazmus, B.; Estienne, Magali; Germain, Marie; Lardeux, A.; Lefèvre, F.; Luquin, L.; Martinez Garcia, Gines; Mas, A.; Massacrier, L.; Matyja, A.; Pillot, Philippe; Schutz, Y.; Shabetai, Alexandre; Stocco, Diego; Baek, Y.W.; Baldit, A.; Barret, V.; Bastid, N.; Crochet, P.; Dupieux, P.; Ichou, R.; Lopez, X.; Manso, F.; Marchisone, M.; Porteboeuf-Houssais, S.; Rosnet, P.; Vulpescu, B.; Zhang, X.; Cheshkov, C.; Cheynis, B.; Ducroux, L.; Guilbaud, Maxime; Tieulent, R.; Uras, A.; Boyer, B.; Das, I.; Espagnon, B.; Hadjidakis, C.; Hřivnáčová, I.; Lakomov, I.; Le Bornec, Y.; Suire, C.; Tapia Takaki, J.D.; Valencia Palomo, L.
Physics letters. B, 2013, Letnik: 721Journal Article
The production cross section of electrons from semileptonic decays of beauty hadrons was measured at mid-rapidity (|y| < 0.8) in the transverse momentum range 1 < pt < 8 Gev/c with the ALICE experiment at the CERN LHC in pp collisions at a center of mass energy sqrt{s} = 7 TeV using an integrated luminosity of 2.2 nb^{-1}. Electrons from beauty hadron decays were selected based on the displacement of the decay vertex from the collision vertex. A perturbative QCD calculation agrees with the measurement within uncertainties. The data were extrapolated to the full phase space to determine the total cross section for the production of beauty quark-antiquark pairs.
