Hannover 2013 – scientific programme

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MS: Fachverband Massenspektrometrie

MS 2: Precision Mass Spectrometry and Fundamental Applications II

MS 2.1: Invited Talk

Monday, March 18, 2013, 14:00–14:30, F 442

The application of high-precision atomic masses in neutrino physics — •Szilard Nagy — Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg — ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, 64291 Darmstadt

The rest mass and the Majoranna or Dirac nature of neutrinos are still open questions in physics. By searching for neutrinoless double-beta decay or neutrinoless double-electron-capture transitions and studying the kinematics of beta-decays the true identity of neutrinos is expected to be uncovered. In these decay processes the mass difference of the mother and daughter atoms plays a key role therefore its accurate and precise knowledge is important. Penning-trap mass spectrometers are the most suitable tools for such measurements. Due to the contribution of Penning traps in the past years the interest in this field has been revived triggering also new theoretical calculations. Our latest results including the masses of several Cd, Pd, Os and W isotopes measured with TRIGA-TRAP will be presented [1,2].

[1] C. Smorra. et al., Phys. Rev. C 85, 027601 (2012)

[2] C. Smorra. et al., Phys. Rev. C 86, 044604 (2012)