VIII International Conference "Models in Quantum Field Theory"

The rare events at fixed target experiments

Oct 7, 2025, 4:00 PM

30m

Main hall

Session talk Section B: Quantum field theory methods in elementary particle physics Section B: Quantum field theory methods in elementary particle physics

Speaker

Dmitry Kirpichnikov (INR RAS)

Description

The connection between Standard Model (SM) particles and light dark matter (DM) can be introduced via spin-0, spin-1, and spin-2 mediators. Moreover, in a mediator mass range from sub-MeV to sub-GeV, fixed-target facilities such as NA64e, LDMX, E137, NA64mu, and M3 can potentially probe such particles of the hidden sector via missing energy signatures that are described by the bremsstrahlung-like process involving leptons. We discuss current and prospect experimental reaches for hidden mediators in the light of regarding fixed-target experiments. In addition for NA64mu and LDMX we address the prospect sensitivity to millicharged particles, that can be associated with DM fraction.

Presentation materials

Kirpichnikov_MQFT2025_Oct_07_2025-1.pdf