Elsevier

Nuclear Physics B

Volume 864, Issue 3, 21 November 2012, Pages 341-381
Nuclear Physics B

Measurement of the b-hadron production cross section using decays to D+μX final states in pp collisions at s=7TeV with the ATLAS detector

https://doi.org/10.1016/j.nuclphysb.2012.07.009Get rights and content
Under a Creative Commons license
open access

Abstract

The b-hadron production cross section is measured with the ATLAS detector in pp collisions at s=7TeV, using 3.3pb1 of integrated luminosity, collected during the 2010 LHC run. The b-hadrons are selected by partially reconstructing D+μX final states. Differential cross sections are measured as functions of the transverse momentum and pseudorapidity. The measured production cross section for a b-hadron with pT>9GeV and |η|<2.5 is 32.7±0.8(stat.)6.8+4.5(syst.)μb, higher than the next-to-leading-order QCD predictions but consistent within the experimental and theoretical uncertainties.

Keywords

QCD
Flavour physics
B physics
Heavy quark production

Cited by (0)

© CERN for the benefit of the ATLAS Collaboration.

E-mail address: [email protected].

a

Also at Laboratorio de Instrumentacao e Fisica Experimental de Particulas – LIP, Lisboa, Portugal.

b

Also at Faculdade de Ciencias and CFNUL, Universidade de Lisboa, Lisboa, Portugal.

c

Also at Particle Physics Department, Rutherford Appleton Laboratory, Didcot, United Kingdom.

d

Also at TRIUMF, Vancouver, BC, Canada.

e

Also at Department of Physics, California State University, Fresno, CA, United States.

f

Also at Novosibirsk State University, Novosibirsk, Russia.

g

Also at Fermilab, Batavia, IL, United States.

h

Also at Department of Physics, University of Coimbra, Coimbra, Portugal.

i

Also at Department of Physics, UASLP, San Luis Potosi, Mexico.

j

Also at Università di Napoli Parthenope, Napoli, Italy.

k

Also at Institute of Particle Physics (IPP), Canada.

l

Also at Department of Physics, Middle East Technical University, Ankara, Turkey.

m

Also at Louisiana Tech University, Ruston, LA, United States.

n

Also at Departamento de Fisica and CEFITEC of Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.

o

Also at Department of Physics and Astronomy, University College London, London, United Kingdom.

p

Also at Group of Particle Physics, University of Montreal, Montreal, QC, Canada.

q

Also at Department of Physics, University of Cape Town, Cape Town, South Africa.

r

Also at Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan.

s

Also at Institut für Experimentalphysik, Universität Hamburg, Hamburg, Germany.

t

Also at Manhattan College, New York, NY, United States.

u

Also at School of Physics, Shandong University, Shandong, China.

v

Also at CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France.

w

Also at School of Physics and Engineering, Sun Yat-sen University, Guanzhou, China.

x

Also at Academia Sinica Grid Computing, Institute of Physics, Academia Sinica, Taipei, Taiwan.

y

Also at Dipartimento di Fisica, Università La Sapienza, Roma, Italy.

z

Also at DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de lʼUnivers), CEA Saclay (Commissariat à lʼEnergie Atomique), Gif-sur-Yvette, France.

aa

Also at Section de Physique, Université de Genève, Geneva, Switzerland.

ab

Also at Departamento de Fisica, Universidade de Minho, Braga, Portugal.

ac

Also at Department of Physics and Astronomy, University of South Carolina, Columbia, SC, United States.

ad

Also at Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, Budapest, Hungary.

ae

Also at California Institute of Technology, Pasadena, CA, United States.

af

Also at Institute of Physics, Jagiellonian University, Krakow, Poland.

ag

Also at LAL, Université Paris-Sud and CNRS/IN2P3, Orsay, France.

ah

Also at Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom.

ai

Also at Department of Physics, Oxford University, Oxford, United Kingdom.

aj

Also at Institute of Physics, Academia Sinica, Taipei, Taiwan.

ak

Also at Department of Physics, The University of Michigan, Ann Arbor, MI, United States.

Deceased.