Light collection system calibration of the nEDM@SNS experiment using cosmic muons

The neutron Electric Dipole Moment experiment at the Spallation Neutron Source (nEDM@SNS) is a novel experiment that aims to push the upper limit of the measured nEDM down to $2-3 imes 10^{-28} ecdot cm$. In order to achieve this, precise calibration of the light collection system has to be performed. In the nEDM@SNS experiment, neutrons are captured by ${}^3He$ which deposits energy into the surrounding superfluid helium which produces a burst of photons. Depending on where this capture event happens in the measurement cell of the nEDM@SNS experiment, a slightly differing number of photons can be detected. By using a pair of detectors called the Mini Muon Trackers (MMTs) developed at LANL, cosmic muons can be tracked as they travel through and scintillate in different locations around the measurement cell. By tracking cosmic muons, we can calibrate the light collection system of the nEDM@SNS experiment. This talk will discuss the ongoing work with refurbishing MMTs along with the simulation of cosmic muons interacting with the measurement cell of the nEDM@SNS experiment.