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Abteilung für gespeicherte und gekühlte Ionen
Max-Planck-GesellschaftMax-Planck-Institut für KernphysikUniversität Heidelberg Abteilung für gespeicherte und gekühlte Ionen
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Tel.: +49 6221 516-851
Fax: +49 6221 516-852
Max-Planck-Institut für Kernphysik
Postfach 10 39 80
69029 Heidelberg
Max-Planck-Institut für Kernphysik
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69117 Heidelberg


Master-Pflichtseminar, SS11

Physik mit gespeicherten und gekühlten Ionen

Seminarraum Blaum (MPI Kphys / kHS)
14tägig, Mi. 15.30 - 17.30


Datum: 20.04.2011
Sprecher: Christoph Diehl
Titel: First mass measurements with the MPIK/UW-PTMS


Datum: 04.05.2011
Sprecher: Bertram Blank / Universität Bordeaux
Titel: Studies with proton-rich nuclei: From super-allowed beta decay to two-proton radioactivity


Datum: 18.05.2011
kein Vortrag!


Datum: 01.06.2011
Sprecher: Felix Berg
Titel: The CSR Injection Beamlines


Datum: 15.06.2011
Sprecher: Holger Kreckel
Titel: Nuclear spin of interstellar H3+ and H2


Datum: 29.06.2011
Sprecher: Sayyora Artikova
Titel: Beam dynamics studies and deceleration experiments with stored ion beam


Datum: 13.07.2011
Sprecher: Michael Kamp-Froese
Titel: Advantages of ion bunching in a cryogenic EIBT


Datum: 21.07.2011, bitte Terminänderung beachten!
Sprecher: Fedor Simkovic, Comeniu University, Bratislava
Titel: Massive neutrinos in nuclear processes


The properties of the neutrinos have been the most important issue in particle physics, astrophysics and cosmology. More than 60 years after discovery of neutrinos we do not know their basisproperties, in particular absolute mass, CP properties, magnetic moment, nature (Dirac or Majorana), statistical properties, number of massive neutrinos etc. Neutrinos are elementary neutralparticles and participate in the weak nuclear processes. The measurement of the electron spectrumin the sigle \beta-decay of tritium and 187Re is discussed in the context of the KATRIN and MAREexperiments looking for an absolute mass of neutrinos. A possibility to detect cosmological relicneutrinos in these experiments is also addressed. After neutrino oscillations discovery, search forneutrinoless double beta decay (0\nu\beta\beta-decay) represents the new frontiers of neutrino physics, allowing in principle to fix the neutrino mass scale, the neutrino nature (the Dirac or Majorana particles)and possible CP violation effects. Many next generation 0\nu\beta\beta-decay experiments are in preparation or under consideration. In this presentation the development in the field of nuclear doublebeta decay is reviewed. A connection of the 0\nu\beta\beta-decay to neutrino oscillations and other leptonnumber violating processes is established. The light and sterile neutrino exchange mechanisms aswell as R-parity breaking mechanisms of the 0\nu\beta\beta-decay are analyzed. The problem of the reliabledetermination of the 0\nu\beta\beta-decay nuclear matrix elements is addressed. The possibility of bosonneutrino and partially boson neutrino is studied in light of the 2\nu\beta\beta-decay data. A new possibilityfor study of lepton number non-conservation is proposed, namely oscillations plus deexcitations ofneutral atoms. A phenomenological analysis of this process lead to a resonant enhancement of theneutrinoless double electron capture that has a Breit-Wigner form. Finally, the perspective of thefield of the single \beta and the double \beta-decays in the context of massive neutrinos is outlined.