Unified origin for baryonic visible matter and antibaryonic dark matter
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-tem...
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| Veröffentlicht in: | Physical review letters 2010-11, Vol.105 (21), p.211304-211304, Article 211304 |
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| container_issue | 21 |
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| container_title | Physical review letters |
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| creator | Davoudiasl, Hooman Morrissey, David E Sigurdson, Kris Tulin, Sean |
| description | 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. |
| doi_str_mv | 10.1103/physrevlett.105.211304 |
| format | Article |
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| identifier | ISSN: 0031-9007 |
| ispartof | Physical review letters, 2010-11, Vol.105 (21), p.211304-211304, Article 211304 |
| issn | 0031-9007 1079-7114 |
| language | eng |
| recordid | cdi_osti_scitechconnect_21541714 |
| source | American Physical Society Journals |
| subjects | 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 |
| title | Unified origin for baryonic visible matter and antibaryonic dark matter |
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