Gamma-ray lines constraints in the NMSSM
arXiv:1204.4591
Abstract
We present the computation of the loop-induced self-annihilation of dark matter particles into two photons in the framework of the NMSSM. This process is a theoretically clean observable with a "smoking-gun" signature but is experimentally very challenging to detect. The rates were computed with the help of the SloopS program, an automatic code initially designed for the evaluation of processes at the one-loop level in the MSSM. We focused on a light neutralino scenario and discuss how the signal can be enhanced in the NMSSM with respect to the MSSM and then compared with the present limits given by the dedicated search of the FERMI-LAT satellite on the monochromatic gamma lines.
4 pages, 3 figures, talk at Moriond 2012 conference on EW Interactions and Unified Theories
References in corpus (13)
- Results from the Final Exposure of the CDMS II Experiment
- Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector
- Results from 730 kg days of the CRESST-II Dark Matter Search
- Search for an Annual Modulation in a P-type Point Contact Germanium Dark Matter Detector
- A Tentative Gamma-Ray Line from Dark Matter Annihilation at the Fermi Large Area Telescope
- Fermi LAT Search for Photon Lines from 30 to 200 GeV and Dark Matter Implications
- Full one-loop corrections to the relic density in the MSSM: A few examples
- Can neutralinos in the MSSM and NMSSM scenarios still be light?
- Automatised full one-loop renormalisation of the MSSM I: The Higgs sector, the issue of tan(beta) and gauge invariance
- Automatised full one-loop renormalisation of the MSSM II: The chargino-neutralino sector, the sfermion sector and some applications
- Relic density at one-loop with gauge boson pair production
- Astrophysical limits on light NMSSM neutralinos
- Loop-induced photon spectral lines from neutralino annihilation in the NMSSM