Speaker
Prof.
Russell Neilson
(Drexel University)
Description
The PICO-60 experiment, located in the SNOLAB underground laboratory, is the largest bubble chamber operated to date by the PICO collaboration, filled with 52 kg of superheated C$_3$F$_8$. Initial dark matter search results were reported in 2017 based on operation at a 3.3 keV threshold. I will report new dark matter search results from increased exposure and lowered operational threshold, with improved sensitivity to low-mass WIMPs. I will also report on a new analysis of neutron calibration experiments performed by the PICO collaboration using neutron beams and low-energy ($\gamma$,n) sources, resulting in an improved measurement of the energy dependence of the nuclear recoil detection efficiency.
Author
Prof.
Russell Neilson
(Drexel University)
