Light neutralino as dark matter
نویسندگان
چکیده
منابع مشابه
NMSSM neutralino dark matter
We study the viability of the lightest neutralino as a dark matter candidate in the Nextto-Minimal Supersymmetric Standard Model. Taking into account accelerator constraints as well as bounds on low-energy observables, and imposing consistency with present bounds on the neutralino relic density, we address the prospects for the direct detection of neutralino dark matter. We find regions of the ...
متن کاملClumpy Neutralino Dark Matter
We investigate the possibility to detect neutralino dark matter in a scenario in which the galactic dark halo is clumpy. We find that under customary assumptions on various astrophysical parameters, the antiproton and continuum γ-ray signals from neutralino annihilation in the halo put the strongest limits on the clumpiness of a neutralino halo. We argue that indirect detection through neutrino...
متن کاملOn the Neutralino as Dark Matter Candidate. I. Relic Abundance.
The neutralino relic abundance is evaluated for a wide range of the neutralino mass, 20 GeV ≤ mχ ≤ 1 TeV, by taking into account the full set of final states in the neutralino-neutralino annihilation. The analysis is performed in the Minimal SuSy Standard Model; it is not restricted by stringent GUT assumptions but only constrained by present experimental bounds. We also discuss phenomenologica...
متن کاملCosmic antiprotons as a probe for neutralino dark matter?
The flux of cosmic ray antiprotons from neutralino annihilations in the galactic halo is computed for a large sample of models in the Minimal Supersymmetric extension of the Standard Model. We also revisit the problem of estimating the background of low-energy cosmic ray induced secondary antiprotons, taking into account their subsequent interactions (and energy loss) and the presence of nuclei...
متن کاملNeutralino Event Rates in Dark Matter Detectors
The expected event rates for ~ Z1 dark matter for a variety of dark matter detectors are studied over the full parameter space with tan 20 for supergravity grand uni ed models. Radiative breaking constraints are implemented and e ects of the heavy netural Higgs included as well as loop corrections to the neutral Higgs sector. The parameter space is restricted so that the ~ Z1 relic density obey...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics Letters B
سال: 1991
ISSN: 0370-2693
DOI: 10.1016/0370-2693(91)90643-5