Publication
Measurement of the cross-section for $b$-jets produced in association with a $Z$ boson at $\sqrt{s}=$ 7 TeV with the ATLAS detector
| dc.contributor.author | ATLAS collaboration (3026 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 | 2019-02-03T18:08:17Z | |
| dc.date.available | 2019-02-03T18:08:17Z | |
| dc.date.issued | 2013-07-16 | |
| dc.date.updated | 2019-02-03T18:08:17Z | |
| dc.description.abstract | A measurement is presented of the cross-section for b-jet production in association with a Z boson in pp collisions at a centre-of-mass energy of sqrt(s)=7 TeV. The analysis uses the data sample collected by the ATLAS experiment in 2010, corresponding to an integrated luminosity of approximately 36 pb^-1. The event selection requires a Z boson decaying into high pt electrons or muons, and a b-jet, identified by its displaced vertex, with transverse momentum pt>25 GeV and rapidity |y|<2.1. After subtraction of backgrounds, the yield is extracted from the vertex mass distribution of the candidate b-jets. The ratio of this cross-section to the inclusive Z cross-section (the average number of b-jets per Z event) is also measured. Both results are found to be in good agreement with perturbative QCD predictions at next-to-leading order. | |
| dc.description.version | Peer Reviewed | |
| dc.identifier | Phys.Lett. B706 (2012) 295-313; DOI 10.1016/j.physletb.2011.11.059 | |
| dc.identifier.uri | http://dx.doi.org/10.1016/j.physletb.2011.11.059 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/26040 | |
| dc.language.iso | eng | |
| dc.title | Measurement of the cross-section for $b$-jets produced in association with a $Z$ boson at $\sqrt{s}=$ 7 TeV with the ATLAS detector | |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt |
| rcaap.type | article |