Física Experimental de Alta Energía
Publicaciones
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
Publicaciones
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
Research areas:
Física Experimental de Alta Energía
Year:
2013
Type of Publication:
In Proceeding
Authors:
- ATLAS Collaboration
- Edson Carquin
- Fedor Prokoshin
- Raquel Pezoa
- Sergey Kuleshov
- William Brooks
Journal:
JHEP
Volume:
1306
Pages:
31
Abstract:
This paper reports a measurement of the W+b-jets (W+b+X and W+bb¯ +X) 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 eects, is quoted in a limited kinematic range. Combining the muon and electron channels, the ducial cross-section for W+b-jets is measured to be 7.1 ± 0.5 (stat) ± 1.4 (syst) pb, consistent with the next-to-leading order QCD prediction, corrected for non-perturbative and double-parton interactions (DPI) contributions, of 4.7 ± 0.09 (stat) +0.60−0.49 (scale) ± 0.06 (PDF) ± 0.16 (non-pert) +0.52−0.38 (DPI) pb