# 2019 Meeting of the Division of Particles & Fields of the American Physical Society

29 July 2019 to 2 August 2019
Northeastern University
US/Eastern timezone

## Direct detection limits on sub-GeV Dark Matter from the DAMIC@Snolab experiment

1 Aug 2019, 14:51
17m
West Village G 102 (Northeastern University)

### West Village G 102

#### Northeastern University

Oral Presentation Dark Matter

### Speaker

Karthik Ramanathan (University of Chicago)

### Description

We present direct detection constraints on sub-GeV dark matter interacting with electrons using the DAMIC@Snolab experiment – which utilizes high resistivity, scientific grade CCDs to image ionization deposits produced by particle interactions within the devices. Using a relatively novel methodology of placing constraints based on leakage current, we report preliminary limits probing new parameter space for dark matter-electron scattering for masses roughly between 0.6 MeV $c^{-2}$ to 5 MeV $c^{-2}$, along with limits on the flux of Lightly Ionizing Particles from fractional charge e$^-$/30 to e$^-$/10000 using a similar analysis.

### Primary author

Karthik Ramanathan (University of Chicago)