Measurement of electrons from beauty hadron decays in pp collisions at √s=7 TeV

ALICE Collaboration

Research output: Contribution to journalArticle

49 Citations (Scopus)

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 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.

Original languageEnglish (US)
Pages (from-to)13-23
Number of pages11
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume721
Issue number1-3
DOIs
StatePublished - Apr 10 2013

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collisions
apexes
decay
electrons
cross sections
transverse momentum
hadrons
center of mass
quantum chromodynamics
luminosity
energy

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Measurement of electrons from beauty hadron decays in pp collisions at √s=7 TeV. / ALICE Collaboration.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 721, No. 1-3, 10.04.2013, p. 13-23.

Research output: Contribution to journalArticle

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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 1T<8 GeV/c with the ALICE experiment at the CERN LHC in pp collisions at a center of mass energy 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.",
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AU - ALICE Collaboration

AU - Abelev, B.

AU - Adam, J.

AU - Adamová, D.

AU - Adare, A. M.

AU - Aggarwal, M. M.

AU - Aglieri Rinella, G.

AU - Agocs, A. G.

AU - Agostinelli, A.

AU - Aguilar Salazar, S.

AU - Ahammed, Z.

AU - Ahmad, N.

AU - Ahmad Masoodi, A.

AU - Ahn, S. A.

AU - Ahn, S. U.

AU - Akindinov, A.

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Alfaro Molina, R.

AU - Alici, A.

AU - Alkin, A.

AU - Almaráz Aviña, E.

AU - Alme, J.

AU - Alt, T.

AU - Altini, V.

AU - Altinpinar, S.

AU - Altsybeev, I.

AU - Andrei, C.

AU - Andronic, A.

AU - Anguelov, V.

AU - Anielski, J.

AU - Anson, C.

AU - Antičić, T.

AU - Antinori, F.

AU - Antonioli, P.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arbor, N.

AU - Arcelli, S.

AU - Arend, A.

AU - Armesto, N.

AU - Arnaldi, R.

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AU - Arsene, I. C.

AU - Arslandok, M.

AU - Asryan, A.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Awes, T. C.

AU - Äystö, J.

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N2 - 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 1T<8 GeV/c with the ALICE experiment at the CERN LHC in pp collisions at a center of mass energy 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.

AB - 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 1T<8 GeV/c with the ALICE experiment at the CERN LHC in pp collisions at a center of mass energy 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.

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U2 - 10.1016/j.physletb.2013.01.069

DO - 10.1016/j.physletb.2013.01.069

M3 - Article

VL - 721

SP - 13

EP - 23

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 1-3

ER -