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A model-independent method and a model-dependent result in direct dark matter detection

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If you have a question about this talk, please contact Marco Nardecchia .

In order to favor the comparison of the different direct dark matter search data, the experimental collaborations typically translate their results into bounds or allowed regions within a specific model of dark matter interactions. The resulting claim of incompatibility between the 9.3 sigma evidence for dark matter in the DAMA experiment and the null result of other experiments is itself model dependent. In the first part of this talk we will propose a simple method (and a code) to translate bounds from one dark matter model to another, thus going beyond the usual assumption of spin-independent or spin-dependent interactions. In the second part we will show that a fermion dark matter interacting through a light pseudoscalar mediator can reconcile DAMA with the null experiments. In this model, the DAMA excess is also seen to be compatible with the gamma-ray excess in the galactic center while reproducing the correct relic density.

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

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