1–4 Jul 2024
Crowne Plaza Bucharest
Europe/Bucharest timezone

Advances in atomic electron capture as a tool for neutrino mass determination

1 Jul 2024, 12:15
30m
Crowne Plaza Bucharest

Crowne Plaza Bucharest

Speaker

Vasile-Alin Sevestrean (CIFRA)

Description

We present the normalized distributions of released energy in electron capture (EC) decay as a method for determining the neutrino mass. Our calculations account for exchange and overlap corrections, shake-up and shake-off atomic effects, electron screening effects, and the intrinsic line-widths of Breit-Wigner resonances.

The wave functions of the electrons were computed using the Dirac-Hartree-Fock-Slater self-consistent method, validated in prior studies for similar calculations. Our analysis focuses on two transitions of 95Tc to two excited states of 95Mo, utilizing the first direct measurement of the ground state to ground state EC Q-value of 95Tc performed with the JYFLTRAP Penning trap mass spectrometer.

Author

Presentation materials