Nucleon charge symmetry breaking and parity violating electron-proton scattering

Journal Article · Sun Mar 01 00:00:00 EST 1998 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.57.1492· OSTI ID:580061

Miller, G A ^[1]

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1. Department of Physics, University of Washington, Box 351560, Seattle, Washington 98195 (United States)

The consequences of the charge symmetry breaking effects of the mass difference between the up and down quarks and electromagnetic effects for searches for strangeness form factors in parity violating electron scattering from the proton are investigated. The formalism necessary to identify and compute the relevant observables is developed by separating the Hamiltonian into charge symmetry conserving and breaking terms. Using a set of SU(6) nonrelativistic quark models, the effects of the charge symmetry breaking Hamiltonian are considered for experimentally relevant values of the momentum transfer and found to be less than about 1{percent}. The charge symmetry breaking corrections to the Bjorken sum rule are also studied and shown to vanish in first-order perturbation theory. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 580061
• Journal Information: Physical Review, C, Vol. 57, Issue 3; Other Information: PBD: Mar 1998
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
NUCLEONS
C INVARIANCE
SYMMETRY BREAKING
P INVARIANCE
ELECTRON-PROTON INTERACTIONS
MASS DIFFERENCE
QUARKS
STRANGENESS
FORM FACTORS
HAMILTONIANS
SU-6 GROUPS
QUARK MODEL
MOMENTUM TRANSFER
PERTURBATION THEORY
SUM RULES
SPACE-TIME
Z NEUTRAL BOSONS