Heidelberg 2015 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 68: Invited Talks 5
HK 68.3: Hauptvortrag
Freitag, 27. März 2015, 12:20–13:00, T/HS1
Penning-trap mass spectrometry for neutrino physics — •Sergey Eliseev1, Klaus Blaum1, Michael Block2, Christine Böhm1, Andreas Dörr1, Christian Droese3, Pavel Filianin4, Mikhail Goncharov1, Enrique Minaya Ramirez1, Dmitriy Nesterenko4, Yuri Novikov4, Alexander Rischka1, and Lutz Schweikhard3 — 1Max-Planck Institute for Nuclear Physics, Heidelberg, Germany — 2GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany — 3Institut für Physik, Ernst-Moritz-Arndt-Universität, Greifswald, Germany — 4Petersburg Nuclear Physics Institute, St. Petersburg, Russia
The discovery of neutrino oscillations has proven neutrinos are massive particles. However, this does not provide information on the type of the neutrino and its mass. An answer to these questions lies in a study of beta transitions, i.e., beta- and double-beta- decays as well as electron and double-electron captures. A crucial parameter in this study is the Q-value of the beta transitions, which has to be measured with an accuracy of 100 eV in the case of the determination of the neutrino type and better than 1 eV if the neutrino mass is concerned. Tremendous progress in Penning traps has finally allowed such high precision Q-value measurements. This contribution will be an overview of the results of the measurements performed with the Penning-trap mass spectrometer SHIPTRAP and present a physical program for the next generation Penning-trap mass spectrometer PENTATRAP, which is under construction at Max-Planck Institute for Nuclear Physics/Germany.