Neutrino physics in the Majoron models
Thesis/Dissertation
·
OSTI ID:5192202
Several results related to the Majoron models are presented. Based on a model Lagrangian, the emission of majorons from the supernova SN1987A is analyzed. By requiring the emission not to cool the supernova too rapidly, a constraint is obtained on a combination of the majoron-neutrino coupling constants. A window for this coefficient h, 2 {times} 10{sup {minus}5} {le} h {le} 3 {times} 10{sup {minus}4}, is excluded. Effects on this bound due to interactions not included in the model Lagrangian are also discussed. A novel matter-induced neutrino decay into majorons is described. The decay rate and spectrum are presented in some detail. The significance of this process and its relation with other matter-induced effects are elucidated. Some related remarks are also made about neutrino decay in vacuum. A new Majoron model with very interesting properties is proposed and analyzed. The model has a low-lying symmetry breaking scale, but partly as a result of an unusual symmetry breaking pattern, there is no hierarchy problem and all Higgs particles are heavy. The couplings of the majoron with other particles are suppressed and all the phenomenological bounds, including the constraint from the recent Z{sup 0} decay width measurements, can be easily satisfied.
- Research Organization:
- Johns Hopkins Univ., Baltimore, MD (United States)
- OSTI ID:
- 5192202
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
662200 -- Specific Theories & Interaction Models
662370* -- Decays of Leptons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
COUPLING CONSTANTS
DECAY
ELEMENTARY PARTICLES
ERUPTIVE VARIABLE STARS
FERMIONS
FUNCTIONS
HIGGS BOSONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LAGRANGIAN FUNCTION
LEPTONS
LIMITING VALUES
MASSLESS PARTICLES
MATHEMATICAL MODELS
NEUTRINOS
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PROPERTIES
PARTICLE WIDTHS
POSTULATED PARTICLES
Pa
Particle Systematics-- (1992-)
SPECTRA
STARS
SUPERNOVAE
SYMMETRY BREAKING
VACUUM STATES
VARIABLE STARS
WEAK PARTICLE DECAY
Z NEUTRAL BOSONS
662370* -- Decays of Leptons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
COUPLING CONSTANTS
DECAY
ELEMENTARY PARTICLES
ERUPTIVE VARIABLE STARS
FERMIONS
FUNCTIONS
HIGGS BOSONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LAGRANGIAN FUNCTION
LEPTONS
LIMITING VALUES
MASSLESS PARTICLES
MATHEMATICAL MODELS
NEUTRINOS
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PROPERTIES
PARTICLE WIDTHS
POSTULATED PARTICLES
Pa
Particle Systematics-- (1992-)
SPECTRA
STARS
SUPERNOVAE
SYMMETRY BREAKING
VACUUM STATES
VARIABLE STARS
WEAK PARTICLE DECAY
Z NEUTRAL BOSONS