- McFarland, KS
- Arroyo, CG
- King, BJ
- De Barbaro, L
- De Barbaro, P
- Bazarko, AO
- Bernstein, RH
- Bodek, A
- Bolton, T
- Budd, H
- Bugel, L
- Conrad, J
- Drucker, RB
- Harris, DA
- Johnson, RA
- Kim, JH
- Kinnel, T
- Lamm, MJ
- Lefmann, WC
- Marsh, W
- McNulty, C
- Mishra, SR
- Naples, D
- Quintas, PZ
- Romosan, A
- Sakumoto, WK
- Schellman, H
- Sciulli, FJ
- Seligman, WG
- Shaevitz, MH
- Smith, WH
- Spentzouris, P
- Stern, EG
- Vakili, M
- Yang, UK
- Yu, J
- Zeller, GP
- et al.
The CCFR collaboration reports a precise measurement of electroweak parameters derived from the ratio of neutral-current to charged-current cross-sections in neutrino-nucleon scattering at the Fermilab Tevatron. We determine sin2θ(on-shell)W= 0.2236 ± 0.0028 (expt.) ± 0.0030 (model) for Mtop= 175 GeV, MHiggs= 150 GeV. This is equivalent to MW= 80.35 ± 0.21 GeV. The good agreement of this measurement with Standard Model expectations implies the exclusion of additional vvqq contact interactions at 95% confidence at a mass scale of 1-8 TeV, depending on the form of the contact interaction.