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Unified origin for baryonic visible matter and antibaryonic dark matter

Davoudiasl, Hooman ; Morrissey, David E ; Sigurdson, Kris ; Tulin, Sean

Physical review letters, 2010-11, Vol.105 (21), p.211304-211304, Article 211304 [Periódico revisado por pares]

United States

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Título:
Unified origin for baryonic visible matter and antibaryonic dark matter
Autor: Davoudiasl, Hooman ; Morrissey, David E ; Sigurdson, Kris ; Tulin, Sean
Assuntos: ANTIBARYONS ; ANTIMATTER ; ANTIPARTICLES ; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ; BARYON NUMBER ; BARYONS ; CP INVARIANCE ; DECAY ; ELEMENTARY PARTICLES ; ENERGY RANGE ; FERMIONS ; FIELD THEORIES ; GEV RANGE ; GRAND UNIFIED THEORY ; HADRONS ; INELASTIC SCATTERING ; INVARIANCE PRINCIPLES ; MATHEMATICAL MODELS ; MATTER ; NONLUMINOUS MATTER ; NUCLEONS ; PARTICLE DECAY ; PARTICLE MODELS ; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ; QUANTUM FIELD THEORY ; QUARKS ; SCATTERING ; STANDARD MODEL ; TEMPERATURE RANGE ; TEMPERATURE RANGE 0065-0273 K ; UNIFIED GAUGE MODELS ; UNIVERSE
É parte de: Physical review letters, 2010-11, Vol.105 (21), p.211304-211304, Article 211304
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: We present a novel mechanism for generating both the baryon and dark matter densities of the Universe. A new Dirac fermion X carrying a conserved baryon number charge couples to the standard model quarks as well as a GeV-scale hidden sector. CP-violating decays of X, produced nonthermally in low-temperature reheating, sequester antibaryon number in the hidden sector, thereby leaving a baryon excess in the visible sector. The antibaryonic hidden states are stable dark matter. A spectacular signature of this mechanism is the baryon-destroying inelastic scattering of dark matter that can annihilate baryons at appreciable rates relevant for nucleon decay searches.
Editor: United States
Idioma: Inglês

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Unified origin for baryonic visible matter and antibaryonic dark matter

Davoudiasl, Hooman ; Morrissey, David E ; Sigurdson, Kris ; Tulin, Sean

United States

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