Dark matter, mu problem and neutrino mass with gauged R-symmetry
arXiv:1002.4791 · doi:10.1103/PhysRevD.82.105028
Abstract
We show that the mu problem and the strong CP problem can be resolved in the context of the gauged U(1)_R symmetry, realizing an automatic Peccei-Quinn symmetry. In this scheme, right-handed neutrinos can be introduced to explain small Majorana or Dirac neutrino mass. The U(1)_R D-term mediated SUSY breaking, called the U(1)_R mediation, gives rise to a specific form of the flavor-conserving superpartner masses. For the given solution to the mu problem, electroweak symmetry breaking condition requires the superpartners of the Standard Model at low energy to be much heavier than the gravitino. Thus dark matter candidate can be either gravitino or right-handed sneutrino. In the Majorana neutrino case, only gravitino is a natural dark matter candidate. On the other hand, in the Dirac neutrino case, the right-handed sneutrino can be also a dark matter candidate as it gets mass only from SUSY breaking. We discuss the non-thermal production of our dark matter candidates from the late decay of stau and find that the constraints from the Big Bang Nucleosynthesis can be evaded for a TeV-scale stau mass.
26 pages, 8 figures, Version to be published in Phys. Rev. D
References in corpus (19)
- Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
- Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
- Particle physics catalysis of thermal Big Bang Nucleosynthesis
- Comments on Supercurrent Multiplets, Supersymmetric Field Theories and Supergravity
- Big Bang Nucleosynthesis with Long Lived Charged Massive Particles
- Stau-catalyzed Li Production in Big-Bang Nucleosynthesis
- Notes on SUSY and R-Symmetry Breaking in Wess-Zumino Models
- Sidestepping the Cosmological Constant with Football-Shaped Extra Dimensions
- Comments on the Fayet-Iliopoulos Term in Field Theory and Supergravity
- Bounds on long-lived charged massive particles from Big Bang nucleosynthesis
- Big Bang Nucleosynthesis with Bound States of Long-lived Charged Particles
- Right-Handed Sneutrino as Cold Dark Matter of the Universe
- Big-Bang Nucleosynthesis with Long-Lived Charged Slepton
- Implications of Catalyzed BBN in the CMSSM with Gravitino Dark Matter
- On the Inconsistency of Fayet-Iliopoulos Terms in Supergravity Theories
- A Bound on the Superpotential
- The degenerate gravitino scenario
- Supersymmetric codimension-two branes in six-dimensional gauged supergravity
- Right-handed sneutrino dark matter and big-bang nucleosynthesis