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Add to Calendar 11/22/2019 12:00 pm 11/22/2019 America/Chicago High Energy Phenomenology Seminar: Josh Ruderman (New York University) "Dark Matter Targets with Exponentially Small Couplings" DESCRIPTION:

Dark matter may be a thermal relic with energy density determined by its measurable interactions.  If the dark matter energy density comes from its annihilations into ordinary particles, as for the Weakly Interacting Massive Particle (WIMP), then there is a sharp target for the size of its coupling to ordinary particles.  I will review the zoology of dark matter models beyond the WIMP.  I will highlight “coscattering,” where the dark matter abundance follows from inelastic scattering instead of annihilations.  I will show that coscattering allows for an exponentially smaller coupling to ordinary particles than is needed for annihilations, opening up vast new parameter space for direct detection experiments to probe thermal relic dark matter.

\n\nSPEAKER: Josh Ruderman (New York University)
464 Loomis false

High Energy Phenomenology Seminar: Josh Ruderman (New York University) "Dark Matter Targets with Exponentially Small Couplings"

Speaker Josh Ruderman (New York University)
Date: 11/22/2019
Time: 12 p.m.
Location: 464 Loomis
Event Contact: Brandy Shier
BSHIER@ILLINOIS.EDU
Sponsor: Department of Physics
Event Type: Seminar/Symposium
 

Dark matter may be a thermal relic with energy density determined by its measurable interactions.  If the dark matter energy density comes from its annihilations into ordinary particles, as for the Weakly Interacting Massive Particle (WIMP), then there is a sharp target for the size of its coupling to ordinary particles.  I will review the zoology of dark matter models beyond the WIMP.  I will highlight “coscattering,” where the dark matter abundance follows from inelastic scattering instead of annihilations.  I will show that coscattering allows for an exponentially smaller coupling to ordinary particles than is needed for annihilations, opening up vast new parameter space for direct detection experiments to probe thermal relic dark matter.

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