Supersymmetric dark matter and lepton flavor violation

Journal Article · Thu Oct 01 00:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.80.076004· OSTI ID:21325285

Barger, Vernon ^[1]; Marfatia, Danny; Mustafayev, Azar; Soleimani, Ali ^[2]

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1. Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States)
2. Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045 (United States)

We study lepton flavor-violating (LFV) processes within a supersymmetric type-I seesaw framework with flavor-blind universal boundary conditions, properly accounting for the effect of the neutrino sector on the dark matter relic abundance. We consider several possibilities for the neutrino Yukawa coupling matrix and show that in regions of SUSY parameter space that yield the correct neutralino relic density, LFV rates can differ from naive estimates by up to 2 orders of magnitude. Contrary to common belief, we find that current LFV limits do not exclude neutrino Yukawa couplings larger than top Yukawa couplings. We introduce the ISAJET-M program that was used for the computations.

• OSTI ID: 21325285
• Journal Information: Physical Review. D, Particles Fields, Vol. 80, Issue 7; Other Information: DOI: 10.1103/PhysRevD.80.076004; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOUNDARY CONDITIONS
COUPLING
DENSITY
FLAVOR MODEL
NEUTRINOS
NONLUMINOUS MATTER
SIMULATION
SUPERSYMMETRY
YUKAWA POTENTIAL