Journal article
Baryogenesis via particle-antiparticle oscillations
- Abstract:
- CP violation, which is crucial for producing the baryon asymmetry of the Universe, is enhanced in particle-antiparticle oscillations. We study particle-antiparticle oscillations [of a particle with mass O(100 GeV)] with CP violation in the early Universe in the presence of interactions with O(ab-fb) cross sections. We show that if baryon-number-violating interactions exist, a baryon asymmetry can be produced via out-of-equilibrium decays of oscillating particles. As a concrete example we study a U(1)R-symmetric, R-parity-violating supersymmetry model with pseudo-Dirac gauginos, which undergo particle-antiparticle oscillations. Taking bino to be the lightest U(1)R-symmetric particle, and assuming it decays via baryon-number-violating interactions, we show that bino-antibino oscillations can produce the baryon asymmetry of the Universe.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Publisher copy:
- 10.1103/PhysRevD.93.123528
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review D More from this journal
- Volume:
- 93
- Issue:
- 123528
- Publication date:
- 2016-06-29
- Acceptance date:
- 2016-04-14
- DOI:
- EISSN:
-
1550-2368
- ISSN:
-
1550-7998
- Keywords:
- Pubs id:
-
pubs:614613
- UUID:
-
uuid:c807113e-6518-4851-adb6-52861b31aa1a
- Local pid:
-
pubs:614613
- Source identifiers:
-
614613
- Deposit date:
-
2016-08-17
Terms of use
- Copyright holder:
- © 2016 American Physical Society
- Copyright date:
- 2016
- Notes:
- © 2016 American Physical Society. Published by Physical Review D.
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