CoGeNT, DAMA, and Light Neutralino Dark Matter

@article{Belikov2011CoGeNTDA,
  title={CoGeNT, DAMA, and Light Neutralino Dark Matter},
  author={A. Belikov and John F. Gunion and D. W. Hooper and Tim M. P. Tait},
  journal={Physics Letters B},
  year={2011},
  volume={705},
  pages={82-86}
}
Abstract Recent observations by the CoGeNT collaboration (as well as long standing observations by DAMA/LIBRA) suggest the presence of a ∼ 5 – 10 GeV dark matter particle with a somewhat large elastic scattering cross section with nucleons ( σ ∼ 10 − 40 cm 2 ). Within the context of the minimal supersymmetric standard model (MSSM), neutralinos in this mass range are not able to possess such large cross sections, and would be overproduced in the early universe. Simple extensions of the MSSM… Expand
The Higgs Sector and CoGeNT/DAMA-Like Dark Matter in Supersymmetric Models
Recent data from CoGeNT and DAMA are roughly consistent with a very light dark matter particle with m ~ 4 − 10 GeV and spin-independent cross section of order σSI ~ (1 − 3) × 10−4 pb. An importantExpand
Light neutralino dark matter in light Higgs scenario related with the CoGeNT and DAMA/LIBRA results
FPRD and Department of Physics and Astronomy, Seoul National University,Seoul 151-747, KoreaE-mail:sshin@phya.snu.ac.krRecently, the CoGeNT collaboration reported the WIMP candidate signal eventsExpand
Cosmic-ray antiproton constraints on light singlino-like dark matter candidates
Abstract The CoGeNT experiment, dedicated to direct detection of dark matter, has recently released excess events that could be interpreted as elastic collisions of ∼ 10 GeV dark matter particles,Expand
LHC constraints on light neutralino dark matter in the MSSM
Abstract Light neutralino dark matter can be achieved in the Minimal Supersymmetric Standard Model if staus are rather light, with mass around 100 GeV. We perform a detailed analysis of the relevantExpand
Light NMSSM neutralino dark matter in the wake of CDMS II and a 126 GeV Higgs boson
Recent results from the Cryogenic Dark Matter Search (CDMS) experiment have renewed interest in light (5{15 GeV) dark matter (DM) with a large spin-independent neutralino-nucleon scatteringExpand
Light neutralino dark matter in the MSSM and its implication for LHC searches for staus
A bstractIt was shown in a previous study that a lightest neutralino with mass below 30 GeV was severely constrained in the minimal supersymmetric standard model (MSSM), unless it annihilates via aExpand
A Comparative Study of Dark Matter in the MSSM and Its Singlet Extensions: A Mini Review
In this note we briefly review the recent studies of dark matter in the MSSM and its singlet extensions: the NMSSM, the nMSSM, and the general singlet extension. Under the new detection results ofExpand
Dark matter attempts for CoGeNT and DAMA
Recently, the CoGeNT collaboration presented a positive signal for an annual modulation in their data set. In light of the long standing annual modulation signal in DAMA/LIBRA, we analyze theExpand
Light dark matter and Z′ dark force at colliders
A bstractLight DM, < 10 GeV, with sizeable direct detection rate is an interesting and less explored scenario. Collider searches can be very powerful, such as through the channel in which a pair ofExpand
XENON100 implications for naturalness in the MSSM, NMSSM, and $\lambda$-supersymmetry model
In a recent paper arXiv:1107.5048, we discussed the correlation between the elastic neutralino-nucleon scattering cross section, constrained by dark matter direct detection experiments, andExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 63 REFERENCES
Implications of CoGeNT and DAMA for Light WIMP Dark Matter
In this paper, we study the recent excess of low energy events observed by the CoGeNT Collaboration, and discuss the possibility that these events originate from the elastic scattering of a lightExpand
Light neutralino dark matter with a very light Higgs boson for CoGeNT and DAMA/LIBRA data
Recently, the CoGeNT collaboration reported weakly interacting massive particle candidate-signal events exceeding the known backgrounds where the light WIMP with large cross section is supported.Expand
Light scalar WIMP through the Higgs portal and CoGeNT
If dark matter (DM) simply consists in a scalar particle interacting dominantly with the Higgs boson, the ratio of its annihilation cross section---which is relevant both for the relic abundance andExpand
Dark light-Higgs bosons.
TLDR
A limit of the nearly Peccei-Quinn-symmetric next-to-minimal supersymmetric standard model possessing novel Higgs and dark matter properties, consistent with experimental constraints from LEP, the Tevatron, Υ, and flavor physics is studied. Expand
Light dark matter in the NMSSM: upper bounds on direct detection cross sections
In the Next-to-Minimal Supersymmetric Standard Model, a bino-like LSP can be as light as a few GeV and satisfy WMAP constraints on the dark matter relic density in the presence of a light CP-oddExpand
On the Origin of Light Dark Matter Species
TeV-mass dark matter charged under a new GeV-scale gauge force can explain electronic cosmic-ray anomalies. We propose that the CoGeNT and DAMA direct detection experiments are observing scatteringExpand
Neutralino dark matter searches
We consider the lightest neutralino, a general combination of photino, zino and higgsinos in the minimal supersymmetric extension of the standard model, as a component of the dark matter in the haloExpand
Deducing the nature of dark matter from direct and indirect detection experiments in the absence of collider signatures of new physics
Despite compelling arguments that significant discoveries of physics beyond the standard model are likely to be made at the Large Hadron Collider, it remains possible that this machine will make noExpand
Indirect detection of light neutralino dark matter in the next-to-minimal supersymmetric standard model
We explore the prospects for indirect detection of neutralino dark matter in supersymmetric models with an extended Higgs sector (next-to-minimal supersymmetric standard model, or NMSSM). We compute,Expand
CoGeNT Interpretations
Recently, the CoGeNT experiment has reported events in excess of expected background. We analyze dark matter scenarios which can potentially explain this signal. Under the standard case of spinExpand
...
1
2
3
4
5
...