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

The Electron Capture in Ho-163 experiment - ECHo

Not scheduled
10m

Speaker

Dr Loredana Gastaldo (Kirchhoff-Institute for Physics, Heidelberg University)

Description

The goal for the ECHo experiment is the determination of the effective electron neutrino mass by analyzing the electron capture (EC) spectrum of $^{163}$Ho. Metallic magnetic calorimeters enclosing $^{163}$Ho, achieved very good performance to conduct such an experiment. During the first phase of the experiment, ECHo-1k, the detector production and the implantation process of high purity $^{163}$Ho have been optimized. Large detector arrays have been developed, featuring energy resolution below 5eV and activity of about 1Bq per pixel. High statistics and high resolution $^{163}$Ho spectra have been acquired and analyzed in light of new theoretical description of the spectral shape, considering the independently determined Q$_{\mathrm{EC}}$-value, and a dedicated background model. In this contribution, we present preliminary results obtained in the first phase of ECHo. At the same time, we discuss the necessary upgrades towards the second phase of the experiment, ECHo-100k.

Mini-abstract

Recent results from the ECHo experiment and plans for the coming phase ECHo-100k will be discussed

Experiment/Collaboration ECHo Collaboration

Primary author

Dr Loredana Gastaldo (Kirchhoff-Institute for Physics, Heidelberg University)

Co-authors

Mr Alexander Goeggelmann (University Tuebingen) Dr Alexander Rischka (Max-Planck-Institut für Kernphysik) Dr Andreas Fleischmann (Kirchhoff Institute for Physics, Heidelberg University) Dr Andreas Reifenberger (Kirchhoff Institute for Physics, Heidelberg University) Mr Arnulf Barth (Kirchhoff Institute for Physics, Heidelberg University) Dr Bruce Marsh (ISOLDE, CERN) Prof. Christian Enss (Kirchhoff Institute for Physics, Heidelberg University) Prof. Christoph E. Duellmann (Johannes Gutenberg-Universität Mainz, Department Chemie) Mr Christoph Schweiger (Max-Planck-Institut für Kernphysik) Dr Clemens Velte (Kirchhoff Institute for Physics, Heidelberg University) Dr Daniel Hengstler (Kirchhoff Institute for Physics, Heidelberg University) Mr Daniel Richter (Kirchhoff Institute for Physics, Heidelberg University) Ms Federica Mantegazzini (Kirchhoff Institute for Physics, Heidelberg University) Mr Felix Ahrens (Kirchhoff Institute for Physics, Heidelberg University) Mr Holger Dorrer (Johannes Gutenberg-Universität Mainz, Department Chemie) Prof. Josef Jochum (Physikalisches Institut, Eberhard Karls Universität Tübingen) Dr Karl Johnston (ISOLDE, CERN) Prof. Klaus Blaum (Max-Planck-Institut für Kernphysik) Prof. Klaus Wendt (Johannes Gutenberg-Universität Mainz, Institut für Physik) Prof. Marc Weber (Institut für Prozessdatenverarbeitung und Elektronik, Karlsruher Institut für Technologie) Mr Martin Brass (Institute for theoretical physics, Heidelberg University) Dr Mathias Wegner (Kirchhoff Institute for Physics, Heidelberg University) Prof. Maurits Haverkort (Institute for theoretical physics, Heidelberg University) Mr Menno Door (Max-Planck-Institut für Kernphysik) Mr Nick Karcher (Institut für Prozessdatenverarbeitung und Elektronik, Karlsruher Institut für Technologie) Mrs Nina Kneip (Johannes Gutenberg-Universität Mainz, Institut für Physik) Dr Oliver Sander (Institut für Prozessdatenverarbeitung und Elektronik, Karlsruher Institut für Technologie) Dr Pavel Filianin (Max-Planck-Institut für Kernphysik) Dr Rima Schuessler (Max-Planck-Institut für Kernphysik) Mr Robert Hammann (Kirchhoff Institute for Physics, Heidelberg University) Prof. Sebastian Kempf (Kirchhoff Institute for Physics, Heidelberg University) Dr Sebastian Rothe (ISOLDE, CERN) Dr Sergey Eliseev (Max-Planck-Institut für Kernphysik) Dr Thierry Stora (ISOLDE, CERN) Dr Tom Kieck (Helmholtz-Institut Mainz) Mr Tom Wickenhaeuser (Kirchhoff Institute for Physics, Heidelberg University) Dr Ulli Koester (Institut Laue-Langevin, Grenoble) Prof. Yuri Novikov (Petersburg Nuclear Physics Institute, Gatchina)

Presentation materials