γZ corrections to forward-angle parity-violating ep scattering

Blunden, Peter G.; Melnitchouk, Wally; Thomas, Anthony W.

doi:10.1103/PhysRevD.82.013011

Title: γZ corrections to forward-angle parity-violating ep scattering

Journal Article · Fri Jul 30 00:00:00 EDT 2010 · Physical Review. D, Particles, Fields, Gravitation and Cosmology

DOI:https://doi.org/10.1103/PhysRevD.82.013011· OSTI ID:985705

Blunden, Peter G. ^[1]; Melnitchouk, Wally ^[2]; Thomas, Anthony W. ^[3]

Univ. of Manitoba, Winnipeg, MB (Canada); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Univ. of Adelaide, Adelaide, SA (Australia)

We use dispersion relations to evaluate the γZ box contribution to parity-violating electron scattering in the forward limit, taking into account constraints from recent JLab data on electroproduction in the resonance region as well as high energy data from HERA. The correction to the asymmetry is found to be 1.2 +- 0.2% at the kinematics of the JLab Q_weak experiment, which is well within the limits required to achieve a 4% measurement of the weak charge of the proton.

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Research Organization:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: AC05-06OR23177

OSTI ID:: 985705

Report Number(s):: JLAB-THY-09-1049; DOE/OR/23177-0952; PRVDAQ; TRN: US201016%%2099

Journal Information:: Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 82; ISSN 1550-7998

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 58 works

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The P2 experiment: A future high-precision measurement of the weak mixing angle at low momentum transfer Becker, Dominik; Bucoveanu, Razvan; Grzesik, Carsten The European Physical Journal A, Vol. 54, Issue 11 https://doi.org/10.1140/epja/i2018-12611-6	journal	November 2018
QCD and strongly coupled gauge theories: challenges and perspectives Brambilla, N.; Eidelman, S.; Foka, P. The European Physical Journal C, Vol. 74, Issue 10 https://doi.org/10.1140/epjc/s10052-014-2981-5	journal	October 2014
QCD and Strongly Coupled Gauge Theories: Challenges and Perspectives Garcia Tormo, Xavier EDP Sciences https://doi.org/10.7892/boris.60803	text	January 2014
Hadronic weak charges and parity-violating forward Compton scattering Gorchtein, Mikhail; Spiesberger, Hubert arXiv https://doi.org/10.48550/arxiv.1608.07484	text	January 2016
The P2 Experiment - A future high-precision measurement of the electroweak mixing angle at low momentum transfer Becker, Dominik; Bucoveanu, Razvan; Grzesik, Carsten arXiv https://doi.org/10.48550/arxiv.1802.04759	text	January 2018
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Dispersive Evaluation of the Inner Radiative Correction in Neutron and Nuclear $β$-decay Seng, Chien Yeah; Gorchtein, Mikhail; Ramsey-Musolf, Michael J. arXiv https://doi.org/10.48550/arxiv.1812.03352	text	January 2018

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