28 July 2020 to 6 August 2020
virtual conference
Europe/Prague timezone

Neutrino Portals to Dark Matter

28 Jul 2020, 16:45
15m
virtual conference

virtual conference

Talk 02. Neutrino Physics Neutrino Physics

Speaker

Salvador Rosauro Alcaraz (Universidad Autónoma de Madrid)

Description

We explore the possibility that dark matter interactions with Standard Model particles are dominated by interactions with neutrinos. We examine whether it is possible to construct such a scenario in a gauge invariant manner. We first study the coupling of dark matter to the full lepton doublet and confirm that this generally leads to the dark matter phenomenology being dominated by interactions with charged leptons. We then explore two different implementations of the neutrino portal in which neutrinos mix with a Standard Model singlet fermion that interacts directly with dark matter through either a scalar or vector mediator. In the latter cases we find that the neutrino interactions can dominate the dark matter phenomenology. Present neutrino detectors can probe dark matter annihilations into neutrinos and already set the strongest constraints on these realisations. Future experiments such as Hyper-Kamiokande, MEMPHYS, DUNE, or DARWIN could allow to probe dark matter-neutrino cross sections down to the value required to obtain the correct thermal relic abundance.

Primary author

Salvador Rosauro Alcaraz (Universidad Autónoma de Madrid)

Co-authors

Enrique Fernandez Martinez Mattias Blennow (KTH Royal Institute of Technology) Silvia Pascoli (University of Durham (GB)) Arsenii Titov (IPPP, Durham University) Andres Olivares (IPPP, Durham University)

Presentation Materials