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Dark matter and U(1)' symmetry for the right-handed neutrinos
Manfred Lindner, Daniel Schmidt, Atsushi Watanabe
We consider a U(1)' gauge symmetry acting on three generations of right-handed neutrinos. The U(1)' symmetry is broken at the TeV scale and its remnant discrete symmetry makes one…
Electroweak and Conformal Symmetry Breaking by a Strongly Coupled Hidden Sector
Martin Holthausen, Jisuke Kubo, Kher Sham Lim +1
The LHC and other experiments show so far no sign of new physics and long-held beliefs about naturalness should be critically reexamined. We discuss therefore in this paper a model…
Results on neutrinoless double beta decay of 76Ge from GERDA Phase I
M. Agostini, M. Allardt, E. Andreotti +112
Neutrinoless double beta decay is a process that violates lepton number conservation. It is predicted to occur in extensions of the Standard Model of particle physics. This Letter…
Pulse shape discrimination for GERDA Phase I data
M. Agostini, M. Allardt, E. Andreotti +111
The GERDA experiment located at the LNGS searches for neutrinoless double beta (0νββ) decay of ^{76}Ge using germanium diodes as source and detector. In Phase I of the experiment e…
Left-Right Symmetric Theory with Light Sterile Neutrinos
Michael Duerr, Pavel Fileviez Perez, Manfred Lindner
A simple theoretical framework for the spontaneous breaking of parity, baryon and lepton numbers is proposed. In this context, the baryon and lepton numbers are independent local g…
Improving Electro-Weak Fits with TeV-scale Sterile Neutrinos
Evgeny Akhmedov, Alexander Kartavtsev, Manfred Lindner +2
We study the impact of TeV-scale sterile neutrinos on electro-weak precision observables and lepton number and flavour violating decays in the framework of a type-I see-saw extensi…