A precision measurement of electroweak parameters in neutrino-nucleon scattering

McFarland, K. S.

doi:10.1007/s100520050099

A precision measurement of electroweak parameters in neutrino-nucleon scattering

Journal Article · Thu Jan 01 00:00:00 EST 1998 · European Physical Journal. C, Particles and Fields

DOI:https://doi.org/10.1007/s100520050099· OSTI ID:1410299

McFarland, K. S. ^[1]

Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States). 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 sin² θ$$(on-shell)\atop{W}$$ = 0.2236 ± 0.0028 (expt.) ± 0.0030 (model) for M_top = 175 GeV, M_Higgs = 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.

View Accepted Manuscript (DOE)

Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Contributing Organization:: CCFR/NuTeV Collaboration

Grant/Contract Number:: AC02-05CH11231

OSTI ID:: 1410299

Alternate ID(s):: OSTI ID: 1893442

Journal Information:: European Physical Journal. C, Particles and Fields, Journal Name: European Physical Journal. C, Particles and Fields Journal Issue: 3 Vol. 1; ISSN 1434-6044

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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