Impact of squark flavour violation on neutralino dark matter

Details Impact of squark flavour violation on neutralino dark matter Impact of squark flavour violation on neutralino dark matter

2011-06-30

arxiv.org/abs/1106.6229v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 11 figures. One figure added, wording improved. Version as published in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.84.095007

We discuss the possibility of new sources of flavour violation in the squark sector of supersymmetric models in the context of the dark matter relic density. We show that the corresponding non-minimal flavour violation terms in the squark mass matrices can have an important impact on the thermally averaged (co)annihilation cross section of the neutralino, and in consequence can modify its predicted relic density. We discuss in detail the relevant effects and present a numerical study of neutralino annihilation and coannihilation in this context. We also comment on the LHC phenomenology of the corresponding scenarios.

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