Affleck–Dine baryogenesis scenarios

E127235

Affleck–Dine baryogenesis scenarios are theoretical models in cosmology and particle physics that explain the universe’s matter–antimatter asymmetry via the dynamics of scalar fields carrying baryon number in the early universe.

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Statements (48)

Predicate Object
instanceOf baryogenesis scenario
particle physics model
theoretical cosmology model
addressesProblem baryon asymmetry of the universe
aimsToExplain observed baryon-to-photon ratio in the cosmic microwave background
assumes out-of-equilibrium evolution of scalar condensate
basedOn Affleck–Dine baryogenesis scenarios self-linksurface differs
surface form: Affleck–Dine mechanism
canLeadTo Q-ball formation
isocurvature perturbations
large baryon-to-entropy ratio
compatibleWith inflationary cosmology
supersymmetric extensions of the Standard Model
dependsOn higher-dimensional baryon-number-violating operators
shape of scalar potential
soft supersymmetry breaking terms
describedIn Affleck and Dine 1985 paper on baryogenesis via flat directions
epoch post-inflationary epoch
field cosmology
early universe cosmology
particle physics
hasPurpose explain matter–antimatter asymmetry of the universe
hasVariant Affleck–Dine baryogenesis scenarios self-linksurface differs
surface form: Affleck–Dine leptogenesis

gauge-mediated Affleck–Dine baryogenesis
gravity-mediated Affleck–Dine baryogenesis
implements C and CP violation
baryon number violation
departure from thermal equilibrium
involvesProcess decay of scalar condensate into baryons
evolution of scalar field along flat directions
generation of net baryon number density
rotation of complex scalar field in field space
namedAfter Ian Affleck
Michael Dine
predicts net baryon asymmetry after reheating
relatedTo electroweak baryogenesis
leptogenesis
requires CP-violating phases in scalar potential
complex scalar field with baryon charge
satisfiesCondition Sakharov conditions
studiedIn supersymmetric Standard Model flat directions
timePeriod early universe
usesConcept baryon number carrying scalar fields
coherent scalar field condensate
flat directions in scalar potential
scalar field dynamics
spontaneous baryogenesis
supersymmetry
yearProposed 1985

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Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Q-balls predictedIn Affleck–Dine baryogenesis scenarios
Affleck–Dine baryogenesis scenarios basedOn Affleck–Dine baryogenesis scenarios self-linksurface differs
this entity surface form: Affleck–Dine mechanism
Affleck–Dine baryogenesis scenarios hasVariant Affleck–Dine baryogenesis scenarios self-linksurface differs
this entity surface form: Affleck–Dine leptogenesis