Limits on anomalous trilinear gauge boson couplings from WW, WZ and W gamma production in collisions at

• Published in: Physics letters. B 2012-12, Vol.718 (2), p.451-459
• Main Authors: Abazov, V M, Abbott, B, Acharya, B S, Adams, M, Adams, T, Alexeev, G D, Alkhazov, G, Alton, A, Askew, A, Atkins, S, Augsten, K, Avila, C, Badaud, F, Bagby, L, Baldin, B, Bandurin, D V, Banerjee, S, Barberis, E, Baringer, P, Bartlett, J F, Bassler, U, Bazterra, V, Bean, A, Begalli, M, Bellantoni, L, Beri, S B, Bernardi, G, Bernhard, R, Bertram, I, Besancon, M, Beuselinck, R, Bhat, P C, Bhatia, S, Bhatnagar, V, Blazey, G, Blessing, S, Bloom, K, Boehnlein, A, Boline, D, Boos, EE, Borissov, G, Brandt, A, Brandt, O, Brock, R, Bross, A, Brown, D, Brown, J, Bu, X B, Buehler, M, Buescher, V, et. al
• Format: Article
• Language: English
• Subjects: Bosons; Collisions; Couplings; Elementary particles; Gages; Gauges; Parametrization; Quadrupoles
• ISSN: 0370-2693
• DOI: 10.1016/j.physletb.2012.10.062

We present searches for the anomalous gamma WW and ZWW trilinear gauge boson couplings from WW and WZ production using lepton plus dijet final states and a combination with results from W gamma , WW, and WZ production with leptonic final states. The analyzed data correspond to up to 8.6 fb - 1 of integrated luminosity collected by the D0 detector in p p A= collisions at s = 1.96 TeV . We set the most stringent limits at a hadron collider to date assuming two different relations between the anomalous coupling parameters I [kappa] gamma , I>, and I g 1 Z for a cutoff energy scale I = 2 TeV . The combined 68% C.L. limits are - 0.057 < I [kappa] gamma < 0.154 , - 0.015 < 0.028 , and - 0.008 < I g 1 Z < 0.054 for the LEP parameterization, and - 0.007 < I [kappa] < 0.081 and - 0.017 < 0.028 for the equal couplings parameterization. We also present the most stringent limits of the W boson magnetic dipole and electric quadrupole moments.