# IDM 2018

Jul 22 – 27, 2018
MacMillian
US/Eastern timezone

## Updated Dark Matter Search Results from the PICO-60 Bubble Chamber

Jul 24, 2018, 11:50 AM
25m
117 (MacMillian)

### 117

#### MacMillian

Brown University Providence, Rhode Island, USA
Talk Direct Detection

### 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.

### Primary author

Prof. Russell Neilson (Drexel University)