Taylor Gray - Producing Dark Matter at Particle Accelerators

Thursday 30 Jan 2025, 11:00 → 12:00 Europe/Stockholm

AlbaNova A5:1041 - CoPS grupprum (AlbaNova Main Building)

Christian Ohm (KTH Royal Institute of Technology), Milena Crnogorcevic (Stockholm University), Thong Nguyen (Stockholm University), Timothy Linden (Stockholm University)

Producing Dark Matter at Particle Accelerators: Extending the landscape and performing global fits of Light Dark Matter theories

Taylor Gray

Sub-GeV dark matter (DM) has been gaining significant interest in recent years, since it can account for the thermal relic abundance while evading nuclear recoil direct detection constraints. Light DM does not carry enough momentum to be probed optimally via nuclear recoils, other search strategies such as direct detection via electron recoils and accelerators are ideal for this mass range.

In the first part of this talk, we investigate the vast theory potential of accelerator based experiments, in particular fixed target experiments such as LDMX, on motivated sub-GeV DM models. In particular, we consider dark photons with additional loop induced interactions – leading to different signatures at LDMX than the ordinary kinetic mixing electromagnetic-type interaction.

In the second part, global fits of constraints from laboratory experiments, and from astrophysical and cosmological observations on two sub-GeV DM models are performed, both with frequentist and Bayesian analyses.

 

---

This is the bi-weekly meeting of the OKC-BSM group.

Those who are at AlbaNova are very welcome to join in the room, but there is also a zoom connection: Zoom link (room 104 167 778, password 737501)