Relativistic corrections to the neutron electric dipole moment in valence quark models
Costella, J P; McKellar, B H.J.
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; NEUTRONS; ELECTRIC DIPOLE MOMENTS; QUARK MODEL; SU GROUPS; BAG MODEL; CORRECTIONS; MEAN-FIELD THEORY; WAVE FUNCTIONS; 662240; 662410; MODELS FOR STRONG INTERACTIONS; PROPERTIES OF BARYONS AND BARYON RESONANCES
It is shown that, in valence quark models, the relativistic corrections to the SU(6) relation for the contribution of the electric dipole moments of the quarks to the electric dipole moment of the neutron can be expressed as a multiplicative correction factor. The correction factor is evaluated in light cone wavefunction models, in the bag model, and in relativistic mean-field models, and is found to lie between 1/3 and 1. It is also demonstrated that in these models, there is a linear relation between correction to the SU(6) value for g{sub A} and that for the electric dipole moment. 14 refs.
Melbourne Univ., Parkville, VIC (Australia). School of Physics
OSTI; NTIS (US Sales Only); INIS
Australian Research Council, Canberra, ACT (Australia); USDOE, Washington, DC (United States)
Australia
1993-12-31
English
Technical Report
Other Information: PBD: [1992]
Medium: X; Size: [9] p.
ON: DE93609954; CNN: Grant DOE/ER40561
UM-P-92/42
Other: ON: DE93609954; CNN: Grant DOE/ER40561; TRN: AU9212948003545
INIS; SCA: 662240; 662410; PA: AIX-24:003545; SN: 93000913806
2008-02-12
10109116