EPJ

2024 Impact factor 4.8
EPJ C - Particles and Fields
Particles and Fields
Eur. Phys. J. C 1, 509-513

A precision measurement of electroweak parameters
in neutrino-nucleon scattering

CCFR/NuTeV Collaboration
K. S. McFarland3 - C. G. Arroyo2 - B. J. King2 - L. de Barbaro5 - P. de Barbaro7 - A. O. Bazarko2 - R. H. Bernstein3 - A. Bodek7 - T. Bolton4 - H. Budd7 - L. Bugel3 - J. Conrad2 - R. B. Drucker6 - D. A. Harris7 - R. A. Johnson1 - J. H. Kim2 - T. Kinnel8 - M. J. Lamm3 - W. C. Lefmann2 - W. Marsh3 - C. McNulty2 - S. R. Mishra2 - D. Naples4 - P. Z. Quintas2 - A. Romosan2 - W. K. Sakumoto7 - H. Schellman5 - F. J. Sciulli2 - W. G. Seligman2 - M. H. Shaevitz2 - W. H. Smith8 - P. Spentzouris2 - E. G. Stern2 - M. Vakili1 - U. K. Yang7 - J. Yu3, G. P. Zeller5

1 University of Cincinnati, Cincinnati, OH 45221, USa
2 Columbia University, New York, NY 10027, USA
3 Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
4 Kansas State University, Manhattan, KS 66506, USA
5 Northwestern University, Evanston, IL 60208, USA
6 University of Oregon, Eugene, OR 97403, USA
7 University of Rochester, Rochester, NY 14627, USA
8 University of Wisconsin, Madison, WI 53706, USA

Received: 5 August 1997

Abstract
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 $\sin^2\theta_W^{\rm \scriptstyle (on-shell)}=0.2236\pm0.0028{\rm\textstyle (expt.)}\pm0.0030{\rm\textstyle (model)}$ for $M_{\rm \scriptstyle top}=175$ GeV, $M_{\rm \scriptstyle Higgs}=150$ GeV. This is equivalent to $M_W=80.35\pm0.21$ GeV. The good agreement of this measurement with Standard Model expectations implies the exclusion of additional $\nu\nu qq$ contact interactions at $95\%$confidence at a mass scale of 1-8 TeV, depending on the form of the contact interaction.

Copyright Springer-Verlag

Conference announcements