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Title: Implications of current constraints on parton charge symmetry

Abstract

For the first time, charge symmetry breaking terms in parton distribution functions have been included in a global fit to high energy data. We review the results obtained for both valence and sea quark charge symmetry violation and compare these results with the most stringent experimental upper limits on charge symmetry violation for parton distribution functions, as well as with theoretical estimates of charge symmetry violation. The limits allowed in the global fit would tolerate a rather large violation of charge symmetry. We discuss the implications of this for various observables, including extraction of the Weinberg angle in neutrino DIS and the Gottfried and Adler sum rules.

Authors:
;
Publication Date:
Research Org.:
Office of Scientific and Technical Information, Oak Ridge, TN
Sponsoring Org.:
USDOE
OSTI Identifier:
860885
Report Number(s):
JLAB-THY-05-448; DOE/ER/40150-3636
Journal ID: JPGNE7; TRN: US0504968
DOE Contract Number:
AC05-84ER40150
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Physics. G, Nuclear and Particle Physics. Supplement; Journal Volume: 31; Journal Issue: 11
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; DISTRIBUTION FUNCTIONS; NEUTRINOS; PARTONS; QUARKS; SEAS; SUM RULES; SYMMETRY; SYMMETRY BREAKING; VALENCE; WEINBERG ANGLE

Citation Formats

J. T. Londergan, and A. W. Thomas. Implications of current constraints on parton charge symmetry. United States: N. p., 2005. Web. doi:10.1088/0954-3899/31/11/003.
J. T. Londergan, & A. W. Thomas. Implications of current constraints on parton charge symmetry. United States. doi:10.1088/0954-3899/31/11/003.
J. T. Londergan, and A. W. Thomas. Tue . "Implications of current constraints on parton charge symmetry". United States. doi:10.1088/0954-3899/31/11/003. https://www.osti.gov/servlets/purl/860885.
@article{osti_860885,
title = {Implications of current constraints on parton charge symmetry},
author = {J. T. Londergan and A. W. Thomas},
abstractNote = {For the first time, charge symmetry breaking terms in parton distribution functions have been included in a global fit to high energy data. We review the results obtained for both valence and sea quark charge symmetry violation and compare these results with the most stringent experimental upper limits on charge symmetry violation for parton distribution functions, as well as with theoretical estimates of charge symmetry violation. The limits allowed in the global fit would tolerate a rather large violation of charge symmetry. We discuss the implications of this for various observables, including extraction of the Weinberg angle in neutrino DIS and the Gottfried and Adler sum rules.},
doi = {10.1088/0954-3899/31/11/003},
journal = {Journal of Physics. G, Nuclear and Particle Physics. Supplement},
number = 11,
volume = 31,
place = {United States},
year = {Tue Nov 01 00:00:00 EST 2005},
month = {Tue Nov 01 00:00:00 EST 2005}
}