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Title: Reassessment of the NuTeV determination of the weak mixing angle

In light of the recent discovery of the importance of the isovector EMC effect for the interpretation of the NuTeV determination of sin 2θ W, it seems timely to reassess the central value and the errors on this fundamental Standard Model parameter derived from the NuTeV data. We also include earlier work on charge symmetry violation and the recent limits on a possible asymmetry between s and s¯ quarks. In addition, with these corrections we find a revised NuTeV result of sin 2θ W = 0.2232 ± 0.0013(stat) ± 0.0024(syst), which is in excellent agreement with the running of sin 2θ W predicted by the Standard Model.
 [1] ;  [2] ;  [3] ;  [4]
  1. Tokai Univ., Kanagawa (Japan)
  2. Univ. of Washington, Seattle, WA (United States)
  3. Indiana Univ. Bloomington, IN (United States)
  4. Univ. of Adelaide, Adelaide, (Australia); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
Report Number(s):
JLAB-THY-09-1051; DOE/OR/23177-0960; arXiv:0908.3198
Journal ID: ISSN 0370-2693; PII: S037026931001052X
Grant/Contract Number:
FG03-97ER4014; AC05-06OR23177; NSF PHY-0854805; DEFG03-97ER4014
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 693; Journal Issue: 4; Journal ID: ISSN 0370-2693
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; weak mixing angle; neutrino deep inelastic scattering; NuTeV; charge symmetry; strange quark asymmetry
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1256946