Aaltonen, T;
Amerio, S;
Amidei, D;
Anastassov, A;
Annovi, A;
Antos, J;
Apollinari, G;
... Zucchelli, S; + view all
(2016)
Measurement of the WW and WZ production cross section using final states with a charged lepton and heavy-flavor jets in the full CDF Run II data set.
Physical Review D
, 94
, Article 032008. 10.1103/PhysRevD.94.032008.
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Abstract
We present a measurement of the total WW and WZ production cross sections in pp¯ collision at s√=1.96 TeV, in a final state consistent with leptonic W boson decay and jets originating from heavy-flavor quarks from either a W or a Z boson decay. This analysis uses the full data set collected with the CDF II detector during Run II of the Tevatron collider, corresponding to an integrated luminosity of 9.4 fb−1. An analysis of the dijet mass spectrum provides 3.7σ evidence of the summed production processes of either WW or WZ bosons with a measured total cross section of σWW+WZ=13.7±3.9 pb. Independent measurements of the WW and WZ production cross sections are allowed by the different heavy-flavor decay patterns of the W and Z bosons and by the analysis of secondary-decay vertices reconstructed within heavy-flavor jets. The productions of WW and of WZ dibosons are independently seen with significances of 2.9σ and 2.1σ, respectively, with total cross sections of σWW=9.4±4.2 pb and σWZ=3.7+2.5−2.2 pb. The measurements are consistent with standard-model predictions.
| Type: | Article |
|---|---|
| Title: | Measurement of the WW and WZ production cross section using final states with a charged lepton and heavy-flavor jets in the full CDF Run II data set |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.94.032008 |
| Publisher version: | http://doi.org/10.1103/PhysRevD.94.032008 |
| Language: | English |
| Additional information: | Copyright © 2016 American Physical Society. The published version of record is available at http://journals.aps.org/prd/abstract/10.1103/PhysRevD.94.032008 |
| Keywords: | Science & Technology, Physical Sciences, Astronomy & Astrophysics, Physics, Particles & Fields, Physics, ELECTROMAGNETIC CALORIMETER, ATLAS DETECTOR, PP COLLISIONS, ROOT-S=7 TEV, UPGRADE, COUPLINGS, EVENTS |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1501381 |
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