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Title: Neutral-current weak interactions at an EIC

Abstract

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 γZ 1, F γZ 3, g γZ 1, g γZ 5 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 of the weak mixing angle sin 2θ W using electron-deuteron collisions which cover a much higher Q 2 than that accessible in fixed target measurements. QED and QCD radiative corrections and effects of detector smearing are included with the calculations.

Authors:
 [1];  [1];  [2];  [1];  [1]
  1. Stony Brook Univ., Stony Brook, NY (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1351738
Report Number(s):
BNL-113728-2017-JA
Journal ID: ISSN 1434-6001
Grant/Contract Number:  
SC00112704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
European Physical Journal. A
Additional Journal Information:
Journal Volume: 53; Journal Issue: 3; Journal ID: ISSN 1434-6001
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Zhao, Y. X., Deshpande, A., Huang, J., Kumar, K. S., and Riordan, S. Neutral-current weak interactions at an EIC. United States: N. p., 2017. Web. doi:10.1140/epja/i2017-12245-2.
Zhao, Y. X., Deshpande, A., Huang, J., Kumar, K. S., & Riordan, S. Neutral-current weak interactions at an EIC. United States. doi:10.1140/epja/i2017-12245-2.
Zhao, Y. X., Deshpande, A., Huang, J., Kumar, K. S., and Riordan, S. Tue . "Neutral-current weak interactions at an EIC". United States. doi:10.1140/epja/i2017-12245-2. https://www.osti.gov/servlets/purl/1351738.
@article{osti_1351738,
title = {Neutral-current weak interactions at an EIC},
author = {Zhao, Y. X. and Deshpande, A. and Huang, J. and Kumar, K. S. and Riordan, S.},
abstractNote = {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, FγZ1, FγZ3, gγZ1, gγZ5 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 of the weak mixing angle sin2θW using electron-deuteron collisions which cover a much higher Q2 than that accessible in fixed target measurements. QED and QCD radiative corrections and effects of detector smearing are included with the calculations.},
doi = {10.1140/epja/i2017-12245-2},
journal = {European Physical Journal. A},
number = 3,
volume = 53,
place = {United States},
year = {Tue Mar 21 00:00:00 EDT 2017},
month = {Tue Mar 21 00:00:00 EDT 2017}
}

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