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Abstract: We present a measurement of the total WW and WZ production cross sections in p¯pcollision at vs=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 3.7s evidence of the summed production processes of either WW or WZ bosons with a measured total cross section of sWW+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 Zbosons 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 2.9s and 2.1s, respectively, with total cross sections of sWW=9.4±4.2??pb and sWZ=3.7+2.5-2.2??pb. The measurements are consistent with standard-model predictions.
Fuente: Phys. Rev. D, Vol. 94, Num. 3, Pag. 032008 (2016)
Publisher: American Physical Society
Publication date: 01/08/2016
No. of pages: 18
Publication type: Article
DOI: 10.1103/PhysRevD.94.032008
ISSN: 1550-7998,1550-2368,2470-0010,2470-0029
Publication Url: https://doi.org/10.1103/PhysRevD.94.032008
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AALTONEN, TIMO ANTERO
BRUNO CASAL LARAÑA
FRANCISCO JAVIER CUEVAS MAESTRO
GERVASIO GOMEZ GRAMUGLIO
JOSE ENRIQUE PALENCIA CORTEZON
ALBERTO RUIZ JIMENO
LUCA SCODELLARO
ROCIO VILAR CORTABITARTE
JESUS MANUEL VIZAN GARCIA
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