We investigate the phenomenology of a wino LSP as obtained in AMSB and some string models. The WMAP constraint on the DM relic density implies a wino LSP mass of 2.0-2.3 TeV. We find a viable signature for such a heavy wino at CLIC, operating at its highest CM energy of 5 TeV. One also expects a viable monochromatic γ-ray signal from its pair-annihilation at the galactic centre at least for cuspy DM halo profiles.
@article{arxiv.hep-ph/0610077,
title = {Looking for a heavy wino LSP in collider and dark matter experiments},
author = {Utpal Chattopadhyay and Debottam Das and Partha Konar and D. P. Roy},
journal= {arXiv preprint arXiv:hep-ph/0610077},
year = {2008}
}
Comments
A discussion on non-perturbative effects on annihilation cross section of TeV scale wino LSP added. Version to appear in Phys. Rev. D.