Measurement of electrons from beauty hadron decays in pp collisions at sqrt(s)=7 TeV

(ALICE Collaboration) Abelev, B.; Antičić, Tome; Gotovac, Sven; Mudnić, Eugen; Planinić, Mirko; Poljak, Nikola; Simatović, Goran; Šuša, Tatjana; Vicković, Linda; Zyzak, M. (2013) Measurement of electrons from beauty hadron decays in pp collisions at sqrt(s)=7 TeV. Physics Letters B, 721 (1/3). pp. 13-23. ISSN 0370-2693

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Abstract

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.

Item Type:	Article
Uncontrolled Keywords:	beauty; hadron decay; ALICE
Subjects:	NATURAL SCIENCES > Physics
Divisions:	Division of Experimental Physics
Projects:	Project title Project leader Project code Project type Experimental physics at LHC energies (Eksperimentalna fizika na LHC energijama) Krešo Kadija 098-0982887-2878 MZOS Study of hadronic systems using relativistic projectiles (Istraživanje hadronskih sustava upotrebom relativističkih projektila) Mirko Planinić 119-0982887-1006 MZOS
Depositing User:	Tome Antičić
Date Deposited:	04 Apr 2016 13:23
URI:	http://fulir.irb.hr/id/eprint/2654
DOI:	10.1016/j.physletb.2013.01.069

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