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

Statistical methods for the new data release of GERDA

Not scheduled
10m

Speaker

Mr Lolian Shtembari (Max Planck Institute for Physics)

Description

The GERDA experiment investigates lepton-number violation and whether neutrinos have a Majorana nature by searching for a rare nuclear transition called neutrinoless double beta decay (0vbb).
The statistical challenges that arise in the search for rare-processes: evaluating the discovery power, the limit setting power on the signal rate and the goodness of fit of the background for models with data sets consisting of a small number of events are discussed.
The topics selected include the systematic variations in the results due to the choice of fit models. This is investigated through Bayesian Hierarchical modelling. Order statistics and the Bayes factor are used as tools to study the background goodness of fit and the signal discovery power.

Mini-abstract

Comparison of Bayesian models for signal discovery and limit setting for the GERDA experiment

Experiment/Collaboration GERDA

Primary author

Mr Lolian Shtembari (Max Planck Institute for Physics)

Co-authors

Prof. Allen Caldwell (Max Planck Institute for Physics) Dr Matteo Agostini (Technische Universität München) Dr Oliver Schulz

Presentation Materials