Documents de présentation
The structure of the earth interior and in particular the earth's core is still a big puzzle. Propagation of seismic waves allow us to infer properties of the mantle and the superficial layers, but the core and the inner core remain almost unmeasured directly. In this talk I will show the first sensitive neutrino earth tomography result using one year of IceCube atmospheric neutrinos data.
Heavy neutral leptons, such as massive sterile neutrinos, are introduced in many beyond the Standard Model theories. Our aim is to study the potential of the LHC to produce and discover this kind of new particles. Moreover, and depending on their masses and couplings, they can be long-lived and lead to signatures with displaced vertices.
The simplest extension of the SM that can account for neutrino masses consists in the addition of 2 right-handed neutrinos to the SM field content. In addition to the generation of the light neutrino mass and mixing pattern measured in neutrino oscillations, the low scale realization of the model provides an explanation for the matter-antimatter asymmetry of the Universe via ARS leptogenesis,...
Daya Bay reactor neutrino experiment has been taking data since the year of 2012 with eight antineutrino detectors deployed at three underground experimental halls at distances of ~400 m - 2000 m away from the six 2.9 GWth nuclear reactors. With millions of inverse beta decay candidate events and well controlled systematics, Daya Bay has measured the neutrino mixing angle theta13 at 4%...
The observed antineutrino flux from nuclear reactors is consistently lower than predicted. This anomaly could hint at oscillations of active neutrinos into a new sterile neutrino species, or it could simply be a reflection of underestimated systematic uncertainties in the theoretical flux prediction. We review the status of both hypothesis in view of recent developments. In particular, we...
