Implications of current constraints on parton charge symmetry

Journal Article · Tue Nov 01 00:00:00 EST 2005 · Journal of Physics. G, Nuclear and Particle Physics. Supplement

DOI:https://doi.org/10.1088/0954-3899/31/11/003· OSTI ID:860885

Londergan, J T; Thomas, A W

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.

• Research Organization: Office of Scientific and Technical Information (OSTI), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 860885
• Report Number(s): JLAB-THY-05-448; DOE/ER/40150-3636; TRN: US0504968
• Journal Information: Journal of Physics. G, Nuclear and Particle Physics. Supplement, Vol. 31, Issue 11
• Country of Publication: United States
• Language: English

Related Subjects

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