Please read these instructions before posting any event on Fermilab Indico

Indico search will be reestablished in the next version upgrade of the software: https://getindico.io/roadmap/


   

This search is only for public events. Restricted events are not available.

June 22, 2020 to July 2, 2020
US/Central timezone

Modeling of GERDA Phase II data

Not scheduled
10m

Speakers

Dr Katharina von Sturm (Universita degli Studi di Padova) Mr Luigi Pertoldi (Universita degli Studi di Padova)

Description

The GERDA experiment is searching for neutrinoless double-beta ($0\nu\beta\beta$) decay of the germanium isotope $^{76}$Ge. Isotopically enriched germanium diode detectors are operated submersed and in direct contact with liquid argon (LAr). Passive and active background suppression techniques such as shielding, pulse shape discrimination and vetoing are adopted to lower the rate of events that can mimic a $0\nu\beta\beta$ signal as much as possible. A good understanding of these backgrounds is essential in order to identify hardware components with particularly high residual radioactive impurities and improve material selection, detector design and active suppression techniques in future experiments. For this purpose, the full-range energy spectra of single- and two-detector events are studied before applying active background suppression. We present the simultaneous decomposition of 60.2 kg$\cdot$yr of GERDA Phase II data using a Bayesian maximum likelihood approach.

Mini-abstract

Background decomposition of single- and two-detector data in Gerda Phase II

Experiment/Collaboration GERDA Collaboration

Primary authors

Dr Katharina von Sturm (Universita degli Studi di Padova) Mr Luigi Pertoldi (Universita degli Studi di Padova)

Co-authors

Dr Ann-Kathrin Schütz (Eberhard Karls Universität Tübingen) Dr Thomas Wester (Technische Universität Dresden)

Presentation Materials