期刊
PHYSICAL REVIEW D
卷 80, 期 9, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.80.095003
关键词
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资金
- Spanish Grants [FPA200800319/FPA]
- Accion Integrada [HA-2007-0090]
- Fundacao para a Ciencia e a Tecnologia [SFRH/BD/29642/2006, CFTP-FCT UNIT 777, CERN/FP/83503/2008]
- RTN Network [MRTN-CT-2006-035505]
- German Ministry of Education and Research (BMBF) [05HT6WWA]
- DAAD [D/07/13468]
- Fundação para a Ciência e a Tecnologia [CERN/FP/83503/2008, SFRH/BD/29642/2006] Funding Source: FCT
We calculate the relic density of the lightest neutralino in a supersymmetric seesaw type-II (triplet seesaw) model with minimal supergravity boundary conditions at the grand unified theory (GUT) scale. The presence of a triplet below the GUT scale, required to explain measured neutrino data in this setup, leads to a characteristic deformation of the sparticle spectrum with respect to the pure minimal supergravity (mSUGRA) expectations, affecting the calculated relic dark matter (DM) density. We discuss how the DM allowed regions in the (m(0),M-1/2) plane change as a function of the (type-II) seesaw scale. We also compare the constraints imposed on the models parameter space form upper limits on lepton flavor violating decays to those imposed by DM. Finally, we briefly comment on uncertainties in the calculation of the relic neutralino density due to uncertainties in the measured top and bottom masses.
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