Hadronic γZ box corrections in Møller scattering

Hall, N. L.; Blunden, P. G.; Melnitchouk, W.; Thomas, A. W.; Young, R. D.

doi:10.1016/j.physletb.2014.02.049

Title: Hadronic γZ box corrections in Møller scattering

Full Record
Other Related Research

Abstract

The possibility of measuring the parity-violating asymmetry in Moller scattering with sufficient accuracy to determine sin²Θ_W to 0.1% offers a complementary path to the discovery of new physics to that followed at high energy colliders. We present a new calculation of the γZ box contribution to parity-violating electron-proton scattering, which constitutes an important uncertainty in computing the background to this process. In addition, we show that while the γZ correction grows rapidly with energy, it can be relatively well constrained by data from parity-violating inelastic scattering and parton distribution functions.

Authors:

Hall, N. L.;

; Melnitchouk, W.; Thomas, A. W.; Young, R. D.

Publication Date:: Tue Apr 01 00:00:00 EDT 2014

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

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1209713

Alternate Identifier(s):: OSTI ID: 1127207

Report Number(s):: JLAB-THY-13-1821; DOE/OR/23177-2900; arXiv:1311.3389
Journal ID: ISSN 0370-2693; S0370269314001488; PII: S0370269314001488

Grant/Contract Number:: AC05-06OR23177

Resource Type:: Published Article

Journal Name:: Physics Letters B

Additional Journal Information:: Journal Volume: 731; 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; weak charge of the proton; Moller scattering; parity-violating inelastic scattering

Citation Formats


                    Hall, N. L., Blunden, P. G., Melnitchouk, W., Thomas, A. W., and Young, R. D. Hadronic γZ box corrections in Møller scattering.  Netherlands: N. p., 2014. 
Web.  doi:10.1016/j.physletb.2014.02.049.

Copy to clipboard


                    Hall, N. L., Blunden, P. G., Melnitchouk, W., Thomas, A. W., & Young, R. D. Hadronic γZ box corrections in Møller scattering.  Netherlands.  https://doi.org/10.1016/j.physletb.2014.02.049

Copy to clipboard


                    Hall, N. L., Blunden, P. G., Melnitchouk, W., Thomas, A. W., and Young, R. D. Tue .  
"Hadronic γZ box corrections in Møller scattering".  Netherlands.  https://doi.org/10.1016/j.physletb.2014.02.049.

Copy to clipboard


                    
@article{osti_1209713,

  title        = {Hadronic γZ box corrections in Møller scattering},

  author       = {Hall, N. L. and Blunden, P. G. and Melnitchouk, W. and Thomas, A. W. and Young, R. D.},

  abstractNote = {The possibility of measuring the parity-violating asymmetry in Moller scattering with sufficient accuracy to determine sin2ΘW to 0.1% offers a complementary path to the discovery of new physics to that followed at high energy colliders. We present a new calculation of the γZ box contribution to parity-violating electron-proton scattering, which constitutes an important uncertainty in computing the background to this process. In addition, we show that while the γZ correction grows rapidly with energy, it can be relatively well constrained by data from parity-violating inelastic scattering and parton distribution functions.},

  doi          = {10.1016/j.physletb.2014.02.049},

  journal      = {Physics Letters B},

  number       = C,

  volume       = 731,

  place        = {Netherlands},

  year         = {Tue Apr 01 00:00:00 EDT 2014},

  month        = {Tue Apr 01 00:00:00 EDT 2014}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Publisher's Version of Record
https://doi.org/10.1016/j.physletb.2014.02.049

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 6 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

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

Journal Article Hall, N. L. ; Blunden, P. G. ; Melnitchouk, W. ; ... - Physics Letters B

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 Q_weak experiment. Within themore »« less
Cited by 18
https://doi.org/10.1016/j.physletb.2015.11.081
Neutral-current weak interactions at an EIC

Journal Article Zhao, Y. X. ; Deshpande, A. ; Huang, J. ; ... - European Physical Journal. A

Here, a simulation study of measurements of neutral current structure functions of the nucleon at the future high-energy and high-luminosity polarized electron-ion collider (EIC) is presented. A new series of γ-Z interference structure functions, F^γZ₁, F^γZ₃, g^γZ₁, g^γZ₅ become accessible via parity-violating asymmetries in polarized electron-nucleon deep inelastic scattering (DIS). Within the context of the quark-parton model, they provide a unique and, in some cases, yet-unmeasured combination of unpolarized and polarized parton distribution functions. The uncertainty projections for these structure functions using electron-proton collisions are considered for various EIC beam energy configurations. Also presented are uncertainty projections for measurements ofmore »« less
Cited by 13
https://doi.org/10.1140/epja/i2017-12245-2

Full Text Available
The MOLLER Experiment: An Ultra-Precise Measurement of the Weak Mixing Angle Using Møller Scattering

Journal Article Collaboration, MOLLER ; Benesch, J ; Brindza, P ; ... - arXiv.org Repository

The physics case and an experimental overview of the MOLLER (Measurement Of a Lepton Lepton Electroweak Reaction) experiment at the 12 GeV upgraded Jefferson Lab are presented. A highlight of the Fundamental Symmetries subfield of the 2007 NSAC Long Range Plan was the SLAC E158 measurement of the parity-violating asymmetrymore »« less
Laser and Electron Beam Technology for Parity Violating Electron Scattering Measurements

Thesis/Dissertation Palatchi, Caryn

Parity violating electron scattering (PVES) is a precision tool used in a broad program of experiments which include studying the structure of protons and nuclei and searching for new Beyond the Standard Model (BSM) physics. In parity violation electron scattering experiments, a longitudinally polarized electron beam is incident on an unpolarized target. The sign of the longitudinal polarization is changed (making a parity transformation), and the fractional rate difference between right and left helicity states, dσ_R and dσ_L, is measured. An interference between the electromagnetic and weak amplitudes, Mγ and MZ respectively, gives rise to a parity violating asymmetry A_PV =more »« less
https://doi.org/10.2172/1574125

Full Text Available
γZ corrections to forward-angle parity-violating ep scattering

Journal Article Alex Sibirtsev ; Blunden, Peter G. ; Melnitchouk, Wally ; ... - Physical Review. D, Particles, Fields, Gravitation and Cosmology

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.
Cited by 58
https://doi.org/10.1103/PhysRevD.82.013011

Full Text Available

Similar Records