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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

  • Author(s): Aaltonen, T
  • Amerio, S
  • Amidei, D
  • Anastassov, A
  • Annovi, A
  • Antos, J
  • Apollinari, G
  • Appel, JA
  • Arisawa, T
  • Artikov, A
  • Asaadi, J
  • Ashmanskas, W
  • Auerbach, B
  • Aurisano, A
  • Azfar, F
  • Badgett, W
  • Bae, T
  • Barbaro-Galtieri, A
  • Barnes, VE
  • Barnett, BA
  • Barria, P
  • Bartos, P
  • Bauce, M
  • Bedeschi, F
  • Behari, S
  • Bellettini, G
  • Bellinger, J
  • Benjamin, D
  • Beretvas, A
  • Bhatti, A
  • Bland, KR
  • Blumenfeld, B
  • Bocci, A
  • Bodek, A
  • Bortoletto, D
  • Boudreau, J
  • Boveia, A
  • Brigliadori, L
  • Bromberg, C
  • Brucken, E
  • Budagov, J
  • Budd, HS
  • Burkett, K
  • Busetto, G
  • Bussey, P
  • Butti, P
  • Buzatu, A
  • Calamba, A
  • Camarda, S
  • Campanelli, M
  • Canelli, F
  • Carls, B
  • Carlsmith, D
  • Carosi, R
  • Carrillo, S
  • Casal, B
  • Casarsa, M
  • Castro, A
  • Catastini, P
  • Cauz, D
  • Cavaliere, V
  • Cavalli-Sforza, M
  • Cerri, A
  • Cerrito, L
  • Chen, YC
  • Chertok, M
  • Chiarelli, G
  • Chlachidze, G
  • Cho, K
  • Chokheli, D
  • Clark, A
  • Clarke, C
  • Convery, ME
  • Conway, J
  • Corbo, M
  • Cordelli, M
  • Cox, CA
  • Cox, DJ
  • Cremonesi, M
  • Cruz, D
  • Cuevas, J
  • Culbertson, R
  • D'Ascenzo, N
  • Datta, M
  • De Barbaro, P
  • Demortier, L
  • Deninno, M
  • Devoto, F
  • D'Errico, M
  • Di Canto, A
  • Di Ruzza, B
  • Dittmann, JR
  • D'Onofrio, M
  • Donati, S
  • Dorigo, M
  • Driutti, A
  • Ebina, K
  • Edgar, R
  • Elagin, A
  • Erbacher, R
  • et al.
Abstract

© 2016 American Physical Society. 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=3.7-2.2+2.5 pb. The measurements are consistent with standard-model predictions.

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