383 research outputs found
Indirect Detection of Neutralino Dark Matter with Neutrino Telescopes
Principle of neutralino dark matter detection with neutrino telescopes and
predictions are reviewed. The future Antares detector is described. Prospection
in the CMSSM is exposed including comparison with experiment sensitivities of
both neutrino indirect detection and direct detection experiments. Results in
other frameworks are shortly surveyed. Models with a non negligible neutralino
higgsino fraction are promising for neutrino telescopes detection.Comment: Talk given at SUSY02, Desy, Hambourg, Germany June 17-2
Neutrino Indirect Detection of Neutralino Dark Matter in the CMSSM
We study potential signals of neutralino dark matter indirect detection by
neutrino telescopes in a wide range of CMSSM parameters. We also compare with
direct detection potential signals taking into account in both cases present
and future experiment sensitivities. Only models with neutralino annihilation
into gauge bosons can satisfy cosmological constraints and current neutrino
indirect detection sensitivities. For both direct and indirect detection, only
next generation experiments will be able to really test this kind of models.Comment: 16 pages, 19 figures; v4: a few clarifications and significant
improvement of reference
Indirect Detection of CMSSM Neutralino Dark Matter with Neutrino Telescopes
We review the prospects of detecting supersymmetric dark matter in the
framework of the Constrained Minimal Supersymmetric Standard Model, and compare
indirect with direct detection capabilities.Comment: 6 pages, 4 figures, presented by J. Orloff at the York IDM02 workshop
(http://www.shef.ac.uk/~phys/idm2002
Neutrino Mass Patterns within the See-saw Model from Multi-localization along Extra Dimensions
We study a multi-localization model for charged leptons and neutrinos,
including the possibility of a see-saw mechanism. This framework offers the
opportunity to allow for realistic solutions in a consistent model without
fine-tuning of parameters, even if quarks are also considered. Those solutions
predict that the large Majorana mass eigenvalues for right-handed neutrinos are
of the same order of magnitude, although this almost common mass can span a
large range (bounded from above by ). The model also
predicts Majorana masses between and $\sim 5 \
10^{-2}{\rm eV}\beta\theta_{13}10^{-2} \lesssim
\sin \theta_{13} \lesssim 10^{-1}$, but smaller values are not totally excluded
by the model.Comment: 36 pages, 8 figure
Decaying dark matter: a stacking analysis of galaxy clusters to improve on current limits
We show that a stacking approach to galaxy clusters can improve current
limits on decaying dark matter by a factor , with respect to a
single source analysis, for all-sky instruments such as Fermi-LAT. Based on the
largest sample of X-ray-selected galaxy clusters available to date (the MCXC
meta-catalogue), we provide all the astrophysical information, in particular
the astrophysical term for decaying dark matter, required to perform an
analysis with current instruments.Comment: 6 pages, 3 figures, supplementary file available on demand, accepted
for publication in PR
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