GPPU Seminar

Date

15:00-17:00, March 05th, 2019

Place

Room 745, Science Complex B (H-03) map

Abstract

The neutrino is a mysterious elementary particle playing a crucial role in our Universe. Since its invention by Wolfgang Pauli, more than 80 year ago, and despite the difficulty to detect the neutrinos, some of its intrinsic properties has been measured such as neutrino flavor oscillations and the neutrinos are currently used to study the core of the supernovae and the Sun.

However, the neutrino keeps some intriguing mysteries. One of the most important questions for particle physics and cosmology, nowadays, is the nature of the neutrino. It could be its own anti-particle. If it is the case, such property has very strong impact on the model of creation of the matter at the early stage of the Universe. After a short presentation of the history of the neutrino and the most important discoveries in this domain, we will be focused on the experimental search of the determination of the neutrino nature.

Presently, the only way to determine the nature of neutrino is to look for a very rare decay, the neutrinoless double beta decay. This process, if it exists, would have the longest decay period in the Universe (> 10²⁴ years) and it could also allow to access to the absolute mass of the neutrino and some other properties.

The physics case related to the double beta decay will be described as well as the experimental challenges to design and to build a double beta decay detector. The state of the art and the future perspectives will be presented.

Point

GSP 1