Speaker
Description
Multiply-Interacting Massive Particles (MIMPs) are ultraheavy dark matter particles with mass in the $10^{10}-10^{20}$ GeV range, which interact strongly with baryonic matter but may have evaded detection due to the low density required to form the local dark matter halo. MIMPs arise naturally in unifying theories that predict colored and electroweak-stable states, as well as in supersymmetric models, and can be produced out of thermal equilibrium in the early Universe.
Considering their large kinetic energy and per-nucleon cross-sections in the $10^{-40}-10^{-20}$ cm$^2$ range, MIMPs are expected to undergo multiple scatterings while traversing a detector, thus making their analysis viable in the COSINE-100 experiment, which searches for dark matter directly through three detectors: muon panels, scintillating liquid and NaI(Tl) crystals.
In this work, we present the apparent MIMP signal at COSINE-100 modeled by means of GEANT4 simulations that incorporate the full detector geometry. Furthermore, we discuss the future analysis based on 5.8 years of COSINE-100 data, along with parameter space prospects on MIMP search.
| Main Contribution topic | Direct detection |
|---|---|
| Secondary contribution topic | Theory / Phenomenology |