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  Novel Frameworks for Dark Matter and Neutrino Masses

Schmidt, D. (2013). Novel Frameworks for Dark Matter and Neutrino Masses. PhD Thesis, Ruprecht-Karls-Universität, Heidelberg.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0014-C6AC-2 Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-0014-C6AD-F
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Phd_Thesis_D_Schmidt.pdf (Verlagsversion), 3MB
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 Urheber:
Schmidt, Daniel1, Autor           
Lindner, Manfred, Gutachter
Plehn, Tilman, Gutachter
Affiliations:
1Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society, ou_904549              

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 Zusammenfassung: The established light neutrino masses and the Dark Matter of the Universe both require physics beyond the Standard Model for their theoretical explanation. Models that provide a common framework for these two issues are very attractive. In particular, radiative mechanisms naturally yield light neutrino masses due to loop suppression factors. These corrections can comprise a link to the physics of Dark Matter. In most considerations, the Dark Matter relic density is produced by freeze-out. This thesis contributes to the elds of radiative neutrino masses and frozen-out Dark Matter. In detail, it is shown that in the Ma-model, right-handed neutrino Dark Matter can be directly detected by photon exchange at one-loop level. The Zee-Babu-model is extended such that it enjoys a global symmetry based on baryon and lepton number. This symmetry generates light neutrino masses and a mass for a stable Dark Matter particle by its spontaneous breaking. Moreover, this thesis provides a new production mechanism for keV sterile neutrino Dark Mattetr, which is based on the freeze-in scenario. In particular, keV sterile neutrino Dark Matter produced by the decay of a frozen-in scalar is investigated.

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 Datum: 2013-12-18
 Publikationsstatus: Angenommen
 Seiten: XV, 155 S. : Ill., graph. Darst.
 Ort, Verlag, Ausgabe: Heidelberg : Ruprecht-Karls-Universität
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 Art des Abschluß: Doktorarbeit

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