July 31, 2017 to August 4, 2017
Fermi National Accelerator Laboratory
US/Central timezone

New Search for Mirror Neutrons at HFIR

Aug 3, 2017, 2:18 PM
1 West (Fermi National Accelerator Laboratory)

1 West

Fermi National Accelerator Laboratory

Presentation Beyond Standard Model Beyond Standard Model


Dr Leah Broussard (Oak Ridge National Laboratory)


The theory of ``mirror matter'' predicts a hidden sector made up of a copy of the Standard Model particles and interactions but with opposite Parity. If mirror matter interacts with ordinary matter, there would be experimentally accessible implications in the form of neutral particle oscillations. Direct searches for neutron oscillations into mirror neutrons in a controlled magnetic field have previously been performed using ultracold neutrons in storage/disappearance measurements, with some inconclusive results for oscillation times of T ~ 10 s. We will describe a proposed disappearance and regeneration experiment in which the neutron oscillates to and from a mirror neutron state. This experiment will be performed using the existing GP-SANS instrument at the High Flux Isotope Reactor at Oak Ridge National Laboratory with modest modifications, and could have the sensitivity to exclude up to T < 15 s.

Primary author

Dr Leah Broussard (Oak Ridge National Laboratory)

Presentation materials