Measurement of sin**2 theta-W from neutrino nucleon scattering at NuTeV

/ Authors

K. McFarland, T. Adams, A. Alton, S. Avvakumov, L. Barbaro, P. Barbaro, R. Bernstein, A. Bodek, T. Bolton, J. Brau

and 30 more authors

D. Buchholz, H. Budd, L. Bugel, J. Conrad, R. Drucker, R. Frey, J. Goldman, M. Goncharov, D. Harris, R. Johnson, S. Koutsoliotas, J. Kim, M. Lamm, W. Marsh, D. Mason, C. McNulty, D. Naples, P. Nienaber, A. Romosan, W. Sakumoto, H. Schellman, M. Shaevitz, P. Spentzouris, E. Stern, M. Vakili, A. Vaitaitis, V. Wu, U. Yang, J. Yu, G. Zeller

/ Abstract

We report the measurement of sin2thetaW in neutrino-nucleon deep inelastic scattering from the NuTeV experiment. Using separate neutrino and anti-neutrino beams, NuTeV is able to determine sin2thetaW with low systematic errors by measuring the Paschos-Wolfenstein variable R-minus, a ratio of differences of neutrino and anti-neutrino neutral-current and charged-current cross-sections. NuTeV measures sin2thetaW(on-shell)= 0.2253+/-0.0019(stat)+/-0.0010(syst), which implies a W mass of 80.26+/-0.11 GeV.

Journal: arXiv: High Energy Physics - Experiment