Neutrino neutral current isoscalar excitations in /sup 12/C-isospin mixing, II
Journal Article
·
· Ann. Phys. (N.Y.); (United States)
The neutrino-neutral current isoscalar excitation of /sup 12/C( (1/sup +/; T = 0; 12.71 MeV) is investigated systematically to examine the specific roles of the various pieces of the neutral current. An effective Hamiltonian for the (isoscalar) neutrino-nucleus neutral current interaction is derived, within the context of the standard electroweak theory. The hadronic part of the neutral current interaction is found to be vectorial. Numerical results for the isoscalar total cross sections are found to satisfy the Primakoff inequality. The T = 1 admixture into the /sup 12/C( (1/sup +/; T = 0; 12.71 MeV) from the /sup 12/C( (1/sup +/; T = 1; 15.1 MeV) is taken into account. It is found that the isospin admixtures makes the total cross sections for the neutrino and antineutrino excitation of the 1/sup +/; 12.71 MeV in /sup 12/C different. The asymmetry R is thus a direct measure of T = 1 admixture. When the T-1 admixture is large (0.2), the Primakoff inequality is disturbed. Further effects of isospin mixing on the total cross sections are discussed.
- Research Organization:
- Institute of Mathematical Sciences, Madras 600 113, India
- OSTI ID:
- 5763970
- Journal Information:
- Ann. Phys. (N.Y.); (United States), Journal Name: Ann. Phys. (N.Y.); (United States) Vol. 167:1; ISSN APNYA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
651315* -- Nuclear Properties & Reactions
A=6-19
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ASYMMETRY
CARBON 12
CARBON 12 TARGET
CARBON ISOTOPES
CROSS SECTIONS
ENERGY DEPENDENCE
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITATION
FUNCTIONS
HAMILTONIANS
INTERACTIONS
ISOSPIN
ISOTOPES
LEPTON REACTIONS
LIGHT NUCLEI
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MEV RANGE
MEV RANGE 10-100
MEV RANGE 100-1000
NEUTRAL-CURRENT INTERACTIONS
NEUTRINO REACTIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PARTICLE-HOLE MODEL
PRIMAKOFF THEORY
QUANTUM OPERATORS
STABLE ISOTOPES
TARGETS
TOTAL CROSS SECTIONS
WAVE FUNCTIONS
WEINBERG ANGLE
A=6-19
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ASYMMETRY
CARBON 12
CARBON 12 TARGET
CARBON ISOTOPES
CROSS SECTIONS
ENERGY DEPENDENCE
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITATION
FUNCTIONS
HAMILTONIANS
INTERACTIONS
ISOSPIN
ISOTOPES
LEPTON REACTIONS
LIGHT NUCLEI
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MEV RANGE
MEV RANGE 10-100
MEV RANGE 100-1000
NEUTRAL-CURRENT INTERACTIONS
NEUTRINO REACTIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PARTICLE-HOLE MODEL
PRIMAKOFF THEORY
QUANTUM OPERATORS
STABLE ISOTOPES
TARGETS
TOTAL CROSS SECTIONS
WAVE FUNCTIONS
WEINBERG ANGLE