Publicação
Measurement of the cross section for the production of a $W$ boson in association with $b^-$ jets in $pp$ collisions at $\sqrt{s}=7$ TeV with the ATLAS detector
| dc.contributor.author | ATLAS collaboration (3024 authors) | |
| dc.contributor.author | Aguilar-Saavedra, Juan Antonio | |
| dc.contributor.author | Amaral, Pedro | |
| dc.contributor.author | Anjos, Nuno | |
| dc.contributor.author | Carvalho, Joao | |
| dc.contributor.author | Castro, Nuno Filipe | |
| dc.contributor.author | Conde Muino, Patricia | |
| dc.contributor.author | Do Valle Wemans, Andre | |
| dc.contributor.author | Fiolhais, Miguel | |
| dc.contributor.author | Gomes, Agostinho | |
| dc.contributor.author | Goncalo, Ricardo | |
| dc.contributor.author | Jorge, Pedro | |
| dc.contributor.author | Lopes, Lourenco | |
| dc.contributor.author | Machado Miguens, Joana | |
| dc.contributor.author | Maio, Amelia | |
| dc.contributor.author | Maneira, Jose | |
| dc.contributor.author | Oliveira, Miguel Alfonso | |
| dc.contributor.author | Onofre, Antonio | |
| dc.contributor.author | Palma, Alberto | |
| dc.contributor.author | Pina, Joao Antonio | |
| dc.contributor.author | Pinto, Belmiro | |
| dc.contributor.author | Santos, Helena | |
| dc.contributor.author | Saraiva, Joao | |
| dc.contributor.author | Silva, Jose | |
| dc.contributor.author | Soares, Mara | |
| dc.contributor.author | Veloso, Filipe | |
| dc.contributor.author | Wolters, Helmut | |
| dc.date.accessioned | 2019-02-03T18:07:28Z | |
| dc.date.available | 2019-02-03T18:07:28Z | |
| dc.date.issued | 2013-07-16 | |
| dc.date.updated | 2019-02-03T18:07:28Z | |
| dc.description.abstract | A measurement is presented of the cross section for the production of a W boson with one or two jets, of which at least one must be a b-jet, in pp collisions at sqrt(s)=7 TeV. Production via top decay is not included in the signal definition. The measurement is based on 35 pb^-1 of data collected with the ATLAS detector at the LHC. The W+b-jet cross section is defined for jets reconstructed with the anti-kt clustering algorithm with transverse momentum above 25 GeV and rapidity within +/-2.1. The b-jets are identified by reconstructing secondary vertices. The fiducial cross section is measured both for the electron and muon decay channel of the W boson and is found to be 10.2 +/- 1.9 (stat) +/- 2.6 (syst) pb for one lepton flavour. The results are compared with next-to-leading order QCD calculations, which predict a cross section smaller than, though consistent with, the measured value. | |
| dc.description.version | Peer Reviewed | |
| dc.identifier | Phys.Lett. B707 (2012) 418-437; DOI 10.1016/j.physletb.2011.12.046 | |
| dc.identifier.uri | http://dx.doi.org/10.1016/j.physletb.2011.12.046 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/26039 | |
| dc.language.iso | eng | |
| dc.title | Measurement of the cross section for the production of a $W$ boson in association with $b^-$ jets in $pp$ collisions at $\sqrt{s}=7$ TeV with the ATLAS detector | |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt |
| rcaap.type | article |