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A Precision measurement of electroweak parameters in neutrino - nucleon scattering

Journal Article · · Eur.Phys.J.C
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. This ratio of cross-sections measures the neutral current couplings to quarks, which implies a determination of sin~2 theta_W (on-shell) = 0.2236 +/- 0.0028(expt.) +/- 0.0030(model) for m_top=175 GeV, m_Higgs=150 GeV. This is equivalent to M_W=80.35+/-0.21 GeV. The good agreement of this measurement with Standard Model expectations implies the exclusion of additional neutrino-neutrino-quark-quark contact interactions at 95% confidence at a mass scale of 1-8 TeV, depending on the form of the contact interaction.
Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Organization:
CCFR; E744; E770
DOE Contract Number:
AC02-07CH11359
OSTI ID:
1893442
Report Number(s):
FERMILAB-PUB-97-001-E; FNAL-PUB-97-001-E; arXiv:hep-ex/9701010; oai:inspirehep.net:439697
Journal Information:
Eur.Phys.J.C, Journal Name: Eur.Phys.J.C Vol. 1
Country of Publication:
United States
Language:
English

Cited By (12)

A Precise Determination of Electroweak Parameters in Neutrino-Nucleon Scattering text January 2001
Constraints on two-lepton, two quark operators text January 2010
Electromagnetic neutrinos in laboratory experiments and astrophysics: Electromagnetic neutrinos in laboratory experiments and astrophysics journal October 2015
Search for contact interactions and large extra dimensions in dilepton events from p p collisions at s = 7     TeV with the ATLAS detector journal January 2013
Explaining the lepton non-universality at the LHCb and CMS within a unified framework journal February 2015
Electroweak Measurements from Hadron Machines journal July 2000
Effective Theories and Electroweak Precision Constraints text January 2008
Neutrino electromagnetic interactions: a window to new physics preprint January 2014
Improved constraints on Z ′ bosons from electroweak precision data journal August 2009
Neutrino Charge Radii from COHERENT Elastic Neutrino-Nucleus Scattering text January 2018
Compilation of low-energy constraints on 4-fermion operators in the SMEFT text January 2017
Experimental probes of localized gravity: On and off the wall journal March 2001

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Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS