Simon Knapen

TL;DR: FIPs 2020 as mentioned in this paper was the first workshop dedicated to the physics of feebly-interacting particles and was held virtually from 31 August to 4 September 2020 at CERN, where experts from collider, beam dump, fixed target experiments, as well as from astrophysics, axions/ALPs searches, current/future neutrino experiments, and dark matter direct detection communities participated.

TL;DR: In this article, the authors presented the first complete derivation of the Migdal effect from dark matter-nucleus scattering in semiconductors, which also accounts for multiphonon production.

TL;DR: In this article, an alternate formulation of the dark matter-electron scattering in terms of the dielectric response of a material was presented, which automatically accounts for in-medium screening effects, which were not included in previous rate calculations for semiconductor targets.

TL;DR: In this article, the authors present a python package to calculate interaction rates of light dark matter in dielectric materials, including screening effects, by parametrized in terms of the energy loss function (ELF) of material.

TL;DR: In this article, the authors provide five benchmark hidden valley models with perturbative parton showers, which span a wide range of dark shower phenomenology, and consider production through an $s$-channel, heavy mediator, which can be identified with the SM Higgs.