Constraining neutrino-dark matter scattering with blazar TXS 0506+056

by Mr Matteo Puel (McGill University)

Wednesday 12 Oct 2022, 10:00 → 12:00 Asia/Shanghai

Meeting Room N631 (Tsung-Dao Lee Institute)

Abstract:

Neutrino emission in coincidence with gamma rays has been observed from the blazar TXS 0506+056 by the IceCube telescope. Neutrinos from the blazar had to pass through a dense spike of dark matter (DM) surrounding the central black hole before being able to reach Earth. The observation of such a neutrino implies new upper bounds on the neutrino-DM scattering cross section as a function of DM mass.

In this talk, I will show that the constraint is stronger than existing ones for a range of DM masses, if the cross section rises linearly with energy. For constant cross sections, competitive bounds are also possible depending on details of the DM spike.

 

Biography:

McGill University, Montréal, Canada      September 2018 – Present
Teaching assistant

University of Trento, Trento, Italy      May 2018 – August 2018
Research collaborator in the LIMADOU analysis team

CERN, Geneva, Switzerland      January 2018 – April 2018
Research physicist in the SMU-ATLAS group

University of Trento, Trento, Italy      March 2017 – December 2017
Research collaborator in the LIMADOU analysis team

Stockholms Universitet, Stockholm, Sweden      January 2016 – April 2016
Internee in the Conrad’s DMAP group
 

Join Zoom Meeting
https://cern.zoom.us/j/66752053079?pwd=czB3S3c5NGNScEV4VmRvNGI0bkRmZz09

Meeting ID: 667 5205 3079
Passcode: 226256

DM-nu-Forum_slides_MP.pdf