# Probing the properties of neutrinos and the mechanism behind the baryon asymmetry

- Institution: CERN
- Department: Theory Colloquia
- Speaker: Julia Harz
- Year: 2021
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3006149)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

With neutrino oscillations pointing us towards massive neutrinos, they are a clear hint towards physics beyond the standard model. With a bright and diverse landscape of current and future experiments, novel approaches are being developed to probe the nature and interactions of neutrinos. First, I will talk about possible dim-5 interactions, in particular transition magnetic moments, and will discuss the sensitivity of coherent elastic neutrino-nucleus scattering experiments to probe those. In this context, I will present a new smoking gun signature that can probe sterile neutrinos in an unexplored parameter space and can be used to distinguish between a Dirac or Majorana nature. I will then continue with possible dim-7 and dim-9 lepton-number violating interactions. I will discuss the interesting interplay between different observables such as meson decays, neutrinoless double beta decay and LHC searches. Finally, I will demonstrate the far-reaching implications of such an observation for cosmology: the potential to render standard thermal leptogenesis unviable.

TH colloquia: https://cern.zoom.us/j/67346292748?pwd=ZnRkQWh0ZXVFQTc5K256QW5NcEcrdz09.

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## Lectures

1. [Probing the properties of neutrinos and the mechanism behind the baryon asymmetry](https://invisiblenetwork.ai/learn/cern/3006149/4da5f107adbd), 1 h 15 min (CERN's player)