Affleck-Dine baryogenesis withR-parity violation

2014/04/30 by Tetsutaro Higaki, Kazunori Nakayama, Ken'ichi Saikawa +3 · 13 citations
Physics and Astronomy · #Asymmetry #Baryogenesis #Baryon #Baryon asymmetry #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Coupling (piping) #Electron #Lambda #Lepton #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #R-parity #Supersymmetry #astro-ph.CO #hep-ph

paper · pdf · doi:10.1103/physrevd.90.045001

published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 90(4) (American Physical Society) · 25 pages, 5 figures; revised version of the manuscript, accepted for publication in PRD

openalex publication_date 2014/08/01 · arxiv created 2014/08/03 · arxiv updated 2014/08/05 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We investigate whether the baryon asymmetry of the Universe is explained in the framework of the supersymmetric extension of the Standard Model with R-parity violating interactions. It is shown that the Affleck-Dine mechanism naturally works via a trilinear interaction LLE^c, LQD^c, or U^cD^cD^c, if the magnitude of the coupling corresponding to the operator \ensuremathλ, \ensuremathλ^\ensuremath', or \ensuremathλ^\ensuremath'\ensuremath' is sufficiently small. The formation of Q-balls and their subsequent evolution are also discussed. The present baryon asymmetry can be explained in the parameter region where R-parity is mildly violated 10^\ensuremath-9\ensuremath\lesssim\ensuremathλ,\ensuremathλ^\ensuremath',\ensuremathλ^\ensuremath'\ensuremath'\ensuremath\lesssim10^\ensuremath-6 and the mass of the gravitino is relatively heavy m_3/2\ensuremath\gtrsim10⁴ GeV. On the other hand, it is difficult to explain the present baryon asymmetry for larger values of R-parity violating couplings \ensuremathλ,\ensuremathλ^\ensuremath',\ensuremathλ^\ensuremath'\ensuremath'\ensuremath\gtrsim10^\ensuremath-5, since Q-balls are likely to be destructed in the thermal environment and the primordial baryon number is washed away.

Citations

• Six-Quark Decays of the Higgs Boson in Supersymmetry withR-Parity Violation
• Review of Particle Physics
• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• The minimal supersymmetric leptogenesis
• Cosmological implications of dynamical supersymmetry breaking
• A new mechanism for baryogenesis
• Model-independent analysis of soft terms in effective supergravity and in string theory
• Formation of theQball in the thermal logarithmic potential and its properties
• Particle Physics Models of Inflation and the Cosmological Density Perturbation
• Detection ofB-Mode Polarization at Degree Angular Scales by BICEP2
• Thermodynamics of non-topological solitons
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• On anomalous electroweak baryon-number non-conservation in the early universe

Cited by

• Exploring the hadronic axion window via delayed neutralino decay to axinos at the LHC
• Observational implications of mattergenesis during inflation
• Revisiting gravitino dark matter in thermal leptogenesis