Getting a THUMP from a WIMP
Hooman Davoudiasl, Gopolang Mohlabeng

TL;DR
This paper introduces a new mechanism for producing ultra massive dark matter particles, called THUMPs, through a two-stage process involving GeV-scale states and a light scalar, with potential detectable signals in experiments.
Contribution
It proposes the THUMP model, a novel approach to generate ultra massive dark matter via a two-step thermal relic process involving GeV-scale states and a light scalar.
Findings
THUMP particles can have large scattering cross sections with Standard Model particles.
The model predicts detectable signals for GeV-scale states at accelerator experiments.
It offers a solution for dark matter masses greater than 100 TeV.
Abstract
Producing an acceptable thermal relic abundance of dark matter with masses TeV is a challenge. We propose a novel mechanism where GeV-scale states establish a tiny thermal relic abundance for dark matter, which is later promoted to ultra massive status by a very light scalar. We refer to this dark matter as a THermal Ultra Massive Particle (THUMP). Direct detection of THUMPs can be naturally expected due to large scattering cross sections mediated by low mass states that couple THUMPs to the Standard Model. Our model generically leads to signals for the associated GeV-scale states at accelerator experiments.
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