Speaker
Nathalie Ziehl
Description
Mirror-particles as hidden-sector copies of standard model particles could provide answers for several standing issues in particle physics. Mirror neutrons, for instance, could provide baryon number violation and be viable candidates for dark matter.
The mirror-neutron experiment at PSI was designed to search for anomalous disappearances of ultracold neutrons in the presence of varying non-zero magnetic field. It completed operation in 2021, testing a mirror magnetic field from 5 $\mu$T to 109 $\mu$T, and found no evidence for anomalous neutron losses. We provide an in-depth look at the data analysis based on Monte Carlo simulations and precise magnetic field maps and present new limits on the oscillation time.
Author
Nathalie Ziehl
Co-author
on behalf of the nn' collaboration at PSI
