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Measurement of the WZ→ℓνℓℓ cross section and limits on anomalous triple gauge couplings in pp- collisions at s=1.96 TeV

  • V. M. Abazov
  • , B. Abbott
  • , M. Abolins
  • , B. S. Acharya
  • , M. Adams
  • , T. Adams
  • , G. D. Alexeev
  • , G. Alkhazov
  • , A. Alton
  • , G. Alverson
  • , G. A. Alves
  • , L. S. Ancu
  • , M. Aoki
  • , Y. Arnoud
  • , M. Arov
  • , A. Askew
  • , B. Åsman
  • , O. Atramentov
  • , C. Avila
  • , J. BackusMayes
  • F. Badaud, L. Bagby, B. Baldin, D. V. Bandurin, S. Banerjee, E. Barberis, A. F. Barfuss, P. Baringer, J. Barreto, J. F. Bartlett, U. Bassler, S. Beale, A. Bean, M. Begalli, M. Begel, C. Belanger-Champagne, L. Bellantoni, J. A. Benitez, S. B. Beri, G. Bernardi, R. Bernhard, I. Bertram, M. Besançon, R. Beuselinck, V. A. Bezzubov, P. C. Bhat, V. Bhatnagar, G. Blazey, S. Blessing, K. Bloom, A. Boehnlein, D. Boline, T. A. Bolton, E. E. Boos, G. Borissov, T. Bose, A. Brandt, O. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, X. B. Bu, D. Buchholz, M. Buehler, V. Buescher, V. Bunichev, S. Burdin, T. H. Burnett, C. P. Buszello, P. Calfayan, B. Calpas, S. Calvet, E. Camacho-Pérez, J. Cammin, M. A. Carrasco-Lizarraga, E. Carrera, B. C.K. Casey, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K. M. Chan, A. Chandra, G. Chen, S. Chevalier-Théry, D. K. Cho, S. W. Cho, S. Choi, B. Choudhary, T. Christoudias, S. Cihangir, D. Claes, J. Clutter, M. Cooke, W. E. Cooper, M. Corcoran, F. 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  • Joint Institute for Nuclear Research, Dubna
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Résultats de recherche: Contribution à un journalArticleRevue par des pairs

26 Citations (Scopus)

Résumé

We present a new measurement of the WZ→ℓνℓℓ (ℓ=e,μ) cross section and limits on anomalous triple gauge couplings. Using 4.1 fb-1 of integrated luminosity of pp- collisions at s=1.96 TeV, we observe 34 WZ candidate events with an estimated background of 6.0±0.4 events. We measure the WZ production cross section to be 3.89-0.90+1.07 pb, in good agreement with the standard model prediction. We find no evidence for anomalous WWZ couplings and set 95% C.L. limits on the coupling parameters, -0.077<λZ<0.093 and -0.029<ΔκZ<0.080 in the HISZ parameterization for a Λ=2 TeV form factor scale. These are the best limits to date obtained from the direct measurement of the WWZ vertex.

langue originaleAnglais
Pages (de - à)67-73
Nombre de pages7
journalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume695
Numéro de publication1-4
Les DOIs
étatPublié - 10 janv. 2011
Modification externeOui

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