Events Calendar
Multicomponent Dark Matter; Correlating Scattering Rates with Dark Sector Instability
Tuesday November 5, 2013
| 2:00 pm
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Presenter: | David Yaylali (University of Hawaii, Manoa) |
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| Series: | Nuclear, Particle, Astroparticle and Cosmology (NUPAC) Seminars | |
| Abstract: |
Recent developments have suggested that the dark sector may be much more complex than previously imagined. As a result, models such as Dynamical Dark Matter --- in which there are multiple semi-stable dark matter components which contribute non-trivially to $Omega_{rm CDM}$ --- merit further study. One interesting potential signal which arises in such contexts stems from the possibility of the inelastic scattering of heavier states into lighter states at direct-detection experiments. The operators which allow such behavior also permit heavier dark-matter states to decay to lighter dark-matter states plus visible matter. Thus, these models offer the intriguing possibility of actually correlating the bounds from direct detection (scattering) and indirect detection (decay). In this talk I will describe the results of a model-independent analysis of the constraints on decaying dark matter within the region of parameter space relevant for inelastic scattering. I will also briefly discuss how one uses chiral perturbation theory to bridge the gap from the high energy DM-quark theory to the low energy regime of dark matter decay.
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| Host: | Rouzbeh Allahverdi | |
| Location: | PAIS-2540, PAIS | |
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