Constrained γZ correction to parity-violating electron scattering

Journal Article · Thu Nov 07 00:00:00 EST 2013 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4829383· OSTI ID:22280708

Hall, N. L.; Thomas, A. W.; Young, R. D. ^[1]; Blunden, P. G. ^[2]; Melnitchouk, W. ^[3]

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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)

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.

• OSTI ID: 22280708
• Journal Information: AIP Conference Proceedings, Vol. 1563, 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); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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