INVESTIGADORES
MONTICELLI Fernando Gabriel
artículos
Título:
Measurement of the cross-section for W boson production in association with b-jets in pp collisions at √s = 7 TeV with the ATLAS detector
Autor/es:
ATLAS COLLABORATION, G. AAD, F. MONTICELLI, ET AL
Revista:
JOURNAL OF HIGH ENERGY PHYSICS
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2013
ISSN:
1126-6708
Resumen:
This paper reports a measurement of the W+b-jets production
cross-section in proton-proton collisions at a centre-of-mass energy of 7
TeV at the LHC. These results are based on data corresponding to an
integrated luminosity of 4.6 fb-1, collected with the ATLAS detector.
Cross-sections are presented as a function of jet multiplicity and of
the transverse momentum of the leading b-jet for both the muon and
electron decay modes of the W boson. The W+b-jets cross-section,
corrected for all known detector effects, is quoted in a limited
kinematic range, using jets reconstructed with the anti-k_t clustering
algorithm with transverse momentum above 25 GeV and rapidity within +/-
2.1. Combining the muon and electron channels, the fiducial
cross-section for W+b-jets is measured to be 7.1 +/- 0.5 (stat) +/- 1.4
(syst) pb, consistent with next-to-leading order QCD calculations within
1.5 standard deviations.