Light neutralino dark matter in light Higgs scenario related with the CoGeNT and DAMA/LIBRA results
arXiv:1011.6377
Abstract
Recently, the CoGeNT collaboration reported the WIMP candidate signal events exceeding the known backgrounds where the light WIMP with large cross section is supported. Motivated by this issue, we analyze a light neutralino dark matter scenario with a very light CP-even Higgs mediation in the elastic scattering process, which provides the mass and direct detection cross section to explain the CoGeNT result. To be compatible with the result of other experiments such as LEP and B-factories, the light CP-even Higgs is favored to be in 9 to 10 GeV. Such a scenario can be realized in the "Beyond the MSSM" context. The relic abundance consistent with the WMAP result can be obtained when twice of neutralino mass is close to the light Higgs mass via the resonance enhancement of the annihilation cross section. As a result, the neutralino mass is predicted to be at around 5 to 6 GeV.
arXiv commentTalk given at the IDM 2010 conference JUL 26-30 2010, Montpellier, France
References in corpus (25)
- Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector
- First Dark Matter Results from the XENON100 Experiment
- CoGeNT Interpretations
- Higgs Physics as a Window Beyond the MSSM (BMSSM)
- Implications of CoGeNT and DAMA for Light WIMP Dark Matter
- Singlet fermionic dark matter
- A light scalar WIMP through the Higgs portal and CoGeNT
- XENON10/100 dark matter constraints in comparison with CoGeNT and DAMA: examining the Leff dependence
- Complex Scalar Dark Matter vis-à-vis CoGeNT, DAMA/LIBRA and XENON100
- Low Mass Neutralino Dark Matter in the MSSM with Constraints from and Higgs Search Limits
- Light Neutralinos with Large Scattering Cross Sections in the Minimal Supersymmetric Standard Model
- Singlet Fermionic Dark Matter explains DAMA signal
- CoGeNT, DAMA, and Light Neutralino Dark Matter
- Channeling in direct dark matter detection II: channeling fraction in Si and Ge crystals
- A CoGeNT confirmation of the DAMA signal
- Comments on "First Dark Matter Results from the XENON100 Experiment"
- Channeling in direct dark matter detection III: channeling fraction in CsI crystals
- Light neutralino dark matter with a very light Higgs for CoGeNT and DAMA/LIBRA data
- CoGeNT, DAMA, and Neutralino Dark Matter in the Next-To-Minimal Supersymmetric Standard Model
- Response to arXiv:1005.2615
- Higgs Phenomenology of Scalar Sequestering
- Wrong-Higgs Interactions without Flavor Problems and their Effects on Physical Observables
- Light Higgs Scenario in BMSSM and LEP Precision Data
- Higgs decays in supersymmetric models with light neutralinos
- Singlet fermionic dark matter as a natural higgs portal model