SOLAR NEUTRINO CAPTURE CROSS-SECTION FOR Ge-76 NUCLEI

Not scheduled
15m
Kongresshaus Stadthalle Heidelberg (Heidelberg)

Kongresshaus Stadthalle Heidelberg

Heidelberg

Neckarstaden 24 69117 Heidelberg Germany
Poster 0vbb Poster (participating in poster prize competition)

Speaker

Mr Andrey Vyborov (Master student of Moscow institute of physics and technology)

Description

In GERDA and LEGEND experiments, a solar neutrino absorption by Ge-76 isotope induces a background event which is indistinguishable from beta decay signal. We estimate cross sections for solar neutrino capture by Ge-76 nucleus for various excited states of daughter nucleus As-76. The Gamow-Teller transitions to the low-lying excited states and the Fermi transitions to the resonance states of this nucleus were taken into account. We demonstrate that these resonant excitations couldn't be neglected for calculating the interaction cross-section. Influence of these resonances enhances total count of neutrino-induced events by $\sim$ 40%.
Session and Location Monday Session, Poster Wall #58 (Auditorium Gallery Right)
Poster included in proceedings: yes

Primary authors

Mr Almaz Fazliakhmetov (Moscow Institute of Physics and Technology, Institute for Nuclear Research of the Russian Academy of Sciences) Mr Andrey Vyborov (Master student of Moscow institute of physics and technology) Mr Gregory Koroteev (Moscow Institute of Physics and Technology, Russia) Dr Lev Inzhechik (Moscow Institute of Physics and Technology, Russia) Dr Victor Tikhonov (National Research Center "Kurchatov Institute", Russia) Dr Yury Lutostansky (National Research Center "Kurchatov Institute", Russia)

Presentation materials