Dark and visible matter with broken R-parity and the axion multiplet

Details Dark and visible matter with broken R-parity and the axion multiplet Dark and visible matter with broken R-parity and the axion multiplet

2011-03-31

arxiv.org/abs/1103.6193v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages + refs, 1 table, v2: refs added, minor changes in presentation, v3: refs added, added discussion of decays into Higgs

Scientific paper

A small breaking of R-parity reconciles thermal leptogenesis, gravitino dark matter and primordial nucleosynthesis. We find that the same breaking relaxes cosmological bounds on the axion multiplet. Naturally expected spectra become allowed and bounds from late particle decays become so weak that they are superseded by bounds from non-thermal axion production. In this sense, the strong CP problem serves as an additional motivation for broken R-parity.

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