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Measurement of electrons from semileptonic heavy-flavour hadron decays in pp collisions at \sqrt{s} = 7 TeV

B. Abelev Laurent Aphecetche 1 A. Baldisseri 2 Guillaume Batigne 1 I. Belikov 3 A.A.E. Bergognon 1 H. Borel 2 M. Bregant 1 J. Castillo Castellanos 2 J.L. Charvet 2 C. Cheshkov 4 B. Cheynis 4 H. Delagrange 1 O. Driga 1 L. Ducroux 4 Marie Germain 1 C. Geuna 2 J.-Y. Grossiord 5 M. Guilbaud 4 S. Jangal 3 C. Kuhn 3 A. Lardeux 1 F. Lefevre 1 M. Lenhardt 1 L. Luquin 1 Gines Martinez Garcia 1 A. Mas 1 L. Massacrier 1, 4 A. Matyja 1 S. Pal 2 H. Pereira da Costa 2 Philippe Pillot 1 A. Rakotozafindrabe 2 C. Roy 3 X. Sanchez Castro 3 Y. Schutz 1 S. Senyukov 3 Alexandre Shabetai 1 Diego Stocco 1 R. Tieulent 4 A. Uras 4 R. Vernet 6 R. Wan 3 H. Yang 2 Y. Zoccarato 4 N. Arbor 7 G. Conesa Balbastre 7 J. Faivre 7 C. Furget 7 R. Guernane 7 S. Kox 7 J.S. Réal 7 C. Silvestre 7 Sang Un Ahn 8 Y.W. Baek 9 A. Baldit 9 V. Barret 9 N. Bastid 9 P. Crochet 9 P. Dupieux 9 R. Ichou 9 X. Lopez 9 F. Manso 9 M. Marchisone 9 S. Porteboeuf-Houssais 9 P. Rosnet 9 B. Vulpescu 9 X. Zhang 9
Abstract : The differential production cross section of electrons from semileptonic heavy-flavour hadron decays has been measured at mid-rapidity ($|y| < 0.5$) in proton-proton collisions at $\sqrt{s} = 7$ TeV with ALICE at the LHC. Data were collected in the transverse momentum range 0.5 $<$ p_t $<$ 8 GeV/$c$. Predictions from a fixed order perturbative QCD calculation with next-to-leading-log resummation agree with the data within the theoretical and experimental uncertainties.
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Submitted on : Friday, May 25, 2012 - 1:53:01 PM
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B. Abelev, Laurent Aphecetche, A. Baldisseri, Guillaume Batigne, I. Belikov, et al.. Measurement of electrons from semileptonic heavy-flavour hadron decays in pp collisions at \sqrt{s} = 7 TeV. Physical Review D, American Physical Society, 2012, 86, pp.112007. ⟨10.1103/PhysRevD.86.112007⟩. ⟨in2p3-00701429⟩

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