Contributor info: Mr Peter Reimitz

Martin Bauer, Patrick Foldenauer, Peter Reimitz, Tilman Plehn

SciPost Phys. 10, 030 (2021) · published 5 February 2021 | Toggle abstract · pdf

We systematically study models with light scalar and pseudoscalar dark matter candidates and their potential signals at the LHC. First, we derive cosmological bounds on models with the Standard Model Higgs mediator and with a new weak-scale mediator. Next, we study two processes inspired by the indirect and direct detection process topologies, now happening inside the LHC detectors. We find that LHC can observe very light dark matter over a huge mass range if it is produced in mediator decays and then scatters with the detector material to generate jets in the nuclear recoil.

Tilman Plehn, Peter Reimitz, Peter Richardson

SciPost Phys. 8, 092 (2020) · published 24 June 2020 | Toggle abstract · pdf

GeV-scale dark matter is an increasingly attractive target for direct detection, indirect detection, and collider searches. Its annihilation into hadronic final states produces a challenging zoo of light hadronic resonances. We update Herwig7 to study the photon and positron spectra from annihilation through a vector mediator. It covers dark matter masses between 250 MeV and 5 GeV and includes an error estimate.