July 28, 2020 to August 6, 2020
virtual conference
Europe/Prague timezone

Colliding light to make dark matter at the LHC

Jul 31, 2020, 1:30 PM
virtual conference

virtual conference


Jesse Liu (University of Chicago)


Dark matter is mysterious because it doesn't interact with light. How remarkable it would be if we made it in the lab by colliding light. Electromagnetic fields surrounding protons at the LHC source the world's highest energy beam of photons. Interestingly, the photon-photon collision rate is sufficiently high for pair production of new heavy states such as supersymmetric particles decaying to dark matter. Importantly, the protons remain intact and can be tagged using recently installed Roman Pot detectors, allowing complete initial state and missing momentum 4-vector reconstruction. This proposal opens a new class of dark matter search at accelerators with sensitivity to current blind spots that excitingly could be realised with today's dataset. Based on Phys. Rev. Lett. 123 (2019) 141801

Primary author

Jesse Liu (University of Chicago)


Lydia Audrey Beresford (University of Oxford (GB))

Presentation materials