W mass and Triple Gauge Couplings at Tevatron

The W mass is a crucial parameter in the Standard Model (SM) of particle physics, providing constraints on the mass of the Higgs boson as well as on new physics models via quantum loop corrections. On the other hand, any deviation of the triple gauge boson couplings (TGC) from their values predicted by the SM would be also an indication for new physics. We present recent measurements on W boson mass and searches for anomalous TGC (aTGC) in Wγ, Zγ, WW, WZ and ZZ at Fermilab Tevatron both by CDF and DØ Collaborations. The CDF Collaboration has measured the W boson mass using data corresponding to 2.2 f b−1 of integrated luminosity. The measurement, performed using electron and muon decays of W boson, yields a mass of MW = 80387 ± 19 MeV. The DØ Collaboration has measured MW = 80367 ± 26 MeV with data corresponding to 4.3 f b−1 of integrated luminosity in the channel W → eν. The combination with an earlier DØ result, using independant data sample at 1 f b−1 of integrated luminosity, yields MW = 80375 ± 23 MeV. The limits on anomalous TGCs parameters are consistent with the SM expectations. 1 W mass measurement at the Tevatron 1.1 Analysis Strategy At the Tevatron, W bosons are primarily produced in qq annihilation, qq → W + X, where X can include QCD radiation that results in measurable hadronic recoil in events. W → lνl decays, where l = e or μ, are selected with high purity by the CDF and DØ (l = e only) detectors and used to measure the mass of the W boson. MW is determined using three kinematic variables measured in the plane perpendicular to the beam direction: the lepton ( p T ) and neutrino (p ν T ) transverse momentum distributions and the transverse mass mT =