Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

Z'-mediated Majorana dark matter: complementarity of direct-detection and LHC searches

Jul 7, 2022, 6:20 PM
Room 11 (Magenta A)

Room 11 (Magenta A)

Parallel Talk Beyond the Standard Model Dark Matter


Dr Juri Fiaschi (University of Liverpool)


We consider the direct-detection rate for Majorana dark matter scattering
off nuclei in an SU(2) × U(1) invariant effective theory and we compare it against the LHC reach. Current constraints from direct detection experiments are already bounding the mediator mass to be well into the TeV range for WIMP-like scenarios. This motivates a consistent and systematic exploration of the parameter space to map out possible regions where the direct detection rates could be suppressed.
We identify such regions and we construct consistent UV models that generate the relevant effective theory.
We then discuss the corresponding constraints from both collider and direct-detection experiments on the same parameter space. We then explore a benchmark scenario where compared to future XENONnT experiment, LHC constraints will have a greater sensitivity to the mediator mass.

In-person participation Yes

Primary authors

Dr Fady Bishara (Deutsches Elektronen-Synchrotron DESY) Dr Juri Fiaschi (University of Liverpool) Martin Gorbahn (University of Liverpool) Dr Oliver Fischer (University of Liverpool) Dr Tommi Alanne (University of Liverpool) Dr Ulserik Moldanazarova (University of Liverpool)

Presentation materials