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Title: Quark–hadron duality constraints on γZ box corrections to parity-violating elastic scattering

Abstract

We examine the interference \gamma Z box corrections to parity-violating elastic electron--proton scattering in the light of the recent observation of quark-hadron duality in parity-violating deep-inelastic scattering from the deuteron, and the approximate isospin independence of duality in the electromagnetic nucleon structure functions down to Q2 \approx 1 GeV2. Assuming that a similar behavior also holds for the \gamma Z proton structure functions, we find that duality constrains the γ Z box correction to the proton's weak charge to be Re V γ Z V = (5.4 \pm 0.4) \times 10-3 at the kinematics of the Qweak experiment. Within the same model we also provide estimates of the γ Z corrections for future parity-violating experiments, such as MOLLER at Jefferson Lab and MESA at Mainz.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1229695
Alternate Identifier(s):
OSTI ID: 1227936; OSTI ID: 1229859
Report Number(s):
JLAB-THY-15-2029; DOE/OR/23177-3334; arXiv:1504.03973
Journal ID: ISSN 0370-2693; S037026931500951X; PII: S037026931500951X
Grant/Contract Number:  
AC05-06OR23177
Resource Type:
Published Article
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Name: Physics Letters B Journal Volume: 753 Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; parity violation; proton weak charge; quark-hadron duality

Citation Formats

Hall, N. L., Blunden, P. G., Melnitchouk, W., Thomas, A. W., and Young, R. D. Quark–hadron duality constraints on γZ box corrections to parity-violating elastic scattering. Netherlands: N. p., 2016. Web. doi:10.1016/j.physletb.2015.11.081.
Hall, N. L., Blunden, P. G., Melnitchouk, W., Thomas, A. W., & Young, R. D. Quark–hadron duality constraints on γZ box corrections to parity-violating elastic scattering. Netherlands. doi:10.1016/j.physletb.2015.11.081.
Hall, N. L., Blunden, P. G., Melnitchouk, W., Thomas, A. W., and Young, R. D. Mon . "Quark–hadron duality constraints on γZ box corrections to parity-violating elastic scattering". Netherlands. doi:10.1016/j.physletb.2015.11.081.
@article{osti_1229695,
title = {Quark–hadron duality constraints on γZ box corrections to parity-violating elastic scattering},
author = {Hall, N. L. and Blunden, P. G. and Melnitchouk, W. and Thomas, A. W. and Young, R. D.},
abstractNote = {We examine the interference \gamma Z box corrections to parity-violating elastic electron--proton scattering in the light of the recent observation of quark-hadron duality in parity-violating deep-inelastic scattering from the deuteron, and the approximate isospin independence of duality in the electromagnetic nucleon structure functions down to Q2 \approx 1 GeV2. Assuming that a similar behavior also holds for the \gamma Z proton structure functions, we find that duality constrains the γ Z box correction to the proton's weak charge to be Re V γ Z V = (5.4 \pm 0.4) \times 10-3 at the kinematics of the Qweak experiment. Within the same model we also provide estimates of the γ Z corrections for future parity-violating experiments, such as MOLLER at Jefferson Lab and MESA at Mainz.},
doi = {10.1016/j.physletb.2015.11.081},
journal = {Physics Letters B},
number = C,
volume = 753,
place = {Netherlands},
year = {2016},
month = {2}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.physletb.2015.11.081

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Cited by: 3 works
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