18-23 March 2018
Florianopolis, Brazil
America/Sao_Paulo timezone

Searching for coherent neutrino-nucleus interaction (CENNS) with M\"ossbauer Spectroscopy

20 Mar 2018, 16:00
1h
Florianopolis, Brazil

Florianopolis, Brazil

Speakers

Sergio Barbosa Duarte (Brazilian Center of Physics Research) Célio Marques (Instituto Federal de Ciencia e Tecnologia do Espirito Santo)

Description

In this work we study the viability of the Mossbauer technique to measure neutrino-nucleus
interaction, specifically Coherent Elastic Neutrino Nucleus Scattering.
To describe the neutrino-nucleus interaction we propose a simple collective model in which the M\"ossbauer-nucleus is considered as an inert core with $A-1$ nucleons, and valence
neutron. The core is slightly deformed in the direction of the transferred momentum by the
weak process involving the $Z_{0}$ exchange with the core. Independent
particles transitions are Pauli-blocked and only collective transitions are permitted to the core.
The very small deformation of the core imposes a perturbative change in the effective
potential of the valence neutron. The non perturbed neutron s-state, which is spherically symmetric, is split into two energy level with has a narrow separation. Now the valence neutron
can explore energy transition between the $1/2$ and $3/2$ spin states. We show that the
M\"ossbauer spectroscopy is able to detect accurately this nuclear state change and it can be used as a new observable associated to CENNS.

Summary

In this work we study the viability of the M\"ossbauer technique to measure neutrino-nucleus
interaction, specifically Coherent Elastic Neutrino Nucleus Scattering.

Primary authors

Sergio Barbosa Duarte (Brazilian Center of Physics Research) Dr Gilmar Souza Dias (Federal Institute of Science and Tecnology of Espirito Santo) Dr Helder H. C. Sanchez (East Center Faculty(UCL)) Célio Marques (Instituto Federal de Ciencia e Tecnologia do Espirito Santo)

Presentation materials