Parity violation in electron--deutron scattering. II. Break-up channels

Journal Article · Tue Dec 01 00:00:00 EST 1981 · Ann. Phys. (N.Y.); (United States)

DOI:https://doi.org/10.1016/0003-4916(81)90201-3· OSTI ID:5608225

Hwang, W P; Henley, E M; Miller, G A

Parity violation in electron--deutron inelastic scattering is described. An impulse approximation, modified to incorporate gauge invariance, is employed. Additional meson-exchange currents are included. Normal-parity and abnormal-parity wave function components are generated numerically with a Reid soft-core potential for the former and a general parity-violating weak potential with adjustable coupling constants for the latter. Numerical results for parity-conserving differential cross sections are in good agreement with existing data. For low n--p excitation energies and medium-energy electrons, we find that parity-violating asymmetries are dominated by contributions from neutral weak currents so that the Weinberg--Salam theory can be tested. For low-energy electrons, 5 MeV< or approx. =E/sub e/< or approx. =50 MeV, our results indicate that the asymmetry caused by nuclear parity violation is roughly as important as that due to neutral weak currents. The pion--nucleon parity-violating couplings, may be determinable from such experiments. Further, it is possible to check the experiment of Lobashov et al., which detects circular polarization in the thermal-neutron capture reaction.

• Research Organization: Institute for Nuclear Theory, Department of Physics, FM-15, University of Washington, Seattle, Washington 98195
• OSTI ID: 5608225
• Journal Information: Ann. Phys. (N.Y.); (United States), Vol. 137:2
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DEUTERIUM TARGET
ELECTRON REACTIONS
BREAKUP REACTIONS
ELECTRON-DEUTERON INTERACTIONS
P INVARIANCE
ANGULAR DISTRIBUTION
COUPLING CONSTANTS
DIFFERENTIAL CROSS SECTIONS
GAUGE INVARIANCE
IMPULSE APPROXIMATION
INELASTIC SCATTERING
MEV RANGE
REID POTENTIAL
WAVE FUNCTIONS
WEAK NEUTRAL CURRENTS
WEINBERG-SALAM GAUGE MODEL
ALGEBRAIC CURRENTS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
CURRENTS
DISTRIBUTION
ENERGY RANGE
FUNCTIONS
INTERACTIONS
INVARIANCE PRINCIPLES
LEPTON REACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
MATHEMATICAL MODELS
NEUTRAL CURRENTS
NUCLEAR REACTIONS
NUCLEON-NUCLEON POTENTIAL
PARTICLE INTERACTIONS
PARTICLE MODELS
POTENTIALS
SCATTERING
TARGETS
UNIFIED GAUGE MODELS
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