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Title: Constrained γZ correction to parity-violating electron scattering

We update the calculation of γZ interference corrections to the weak charge of the proton. We show how constraints from parton distributions, together with new data on parity-violating electron scattering in the resonance region, significantly reduce the uncertainties on the corrections compared to previous estimates.
Authors:
; ;  [1] ;  [2] ;  [3]
  1. ARC Centre of Excellence for Particle Physics at the Terascale, and CSSM, School of Chemistry and Physics, University of Adelaide, Adelaide SA 5005 (Australia)
  2. Department of Physics and Astronomy, University of Manitoba, Winnipeg, MB, Canada R3T 2N2 (Canada)
  3. Jefferson Lab, 12000 Jefferson Avenue, Newport News, Virginia 23606 (United States)
Publication Date:
OSTI Identifier:
22280708
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1563; Journal Issue: 1; Conference: Workshop to explore physics opportunities with intense, polarized electron beams at 50-300 MeV, Cambridge, MA (United States), 14-16 Mar 2013; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COMPARATIVE EVALUATIONS; CORRECTIONS; ELASTIC SCATTERING; ELECTRONS; GLUONS; INTERFERENCE; LIMITING VALUES; P INVARIANCE; PARITY; PARTICLE STRUCTURE; PROTONS; QUARKS; RESONANCE