20–25 Aug 2023
Universität Hamburg
Europe/Berlin timezone

Light Dark Matter Analysis Using NO$\nu$A Near Detector

25 Aug 2023, 09:30
20m
Raum O221 (East Wing)

Raum O221

East Wing

Edmund-Siemers-Allee 1 Flügelbau Ost
Parallel session talk Dark Matter T03 Dark Matter

Speaker

Barnali Brahma (Indian Institute of Technology Hyderabad)

Description

Dark matter is believed to account for 85$\%$ of the matter of the Universe. The lead dark matter candidate is the WIMP (weakly interacting massive particles). Light dark matter refers to WIMP candidates with a mass of less than 1 GeV. The concept of light DM has been developed in order to explain the 511 keV $\gamma$-ray from the galactic bulge, as observed by the INTEGRAL satellite. There are a lot of candidates for light DM, and these candidates span a wide range of potential masses and couplings to the visible sector. Probing the vast parameter space of light-dark matter requires a correspondingly broad experimental program which includes neutrino fixed target experiments. NO$\nu$A is a high luminosity long-baseline fixed-target accelerator neutrino experiment at Fermilab that can provide a potentially interesting probe in searching for signatures of DM scattering with electrons in its near detectors. We aim to search for the MeV-scale dark matter particles that might be generated within the NuMI beam and produce detectable electron scattering signals in NO$\nu$A near detector. In this talk, we present our analysis of the single electron events using a simulated sample and show the sensitivity of the NO$\nu$A experiment.

Collaboration / Activity NOvA Collaboration

Primary author

Barnali Brahma (Indian Institute of Technology Hyderabad)

Co-authors

Alexander Himmel (Fermi National Accelerator Laboratory) Anjan Giri (Indian Institute of Technology Hyderabad) Wei Mu (Fermi National Accelerator Laboratory)

Presentation materials