Dark Matter Search Results from the PICO-60 C_3F_8 Bubble Chamber

New results are reported from the operation of the PICO-60 dark matter detector, a bubble chamber filled with 52 kg of C_3F_8 located in the SNOLAB underground laboratory. As in previous PICO bubble chambers, PICO-60 C_3F_8 exhibits excellent electron recoil and alpha decay rejection, and the observed multiple-scattering neutron rate... Show more