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21 papers · 2 filters
Electroweak Absolute, Meta-, and Thermal Stability in Neutrino Mass Models
Manfred Lindner, Hiren H. Patel, Branimir Radovčić
We analyze the stability of the electroweak vacuum in neutrino mass models containing right handed neutrinos or fermionic isotriplets. In addition to considering absolute stability…
Singlet-Doublet Dirac Dark Matter
Carlos E. Yaguna
We analyze a simple extension of the Standard Model where the dark matter particle is a Dirac fermion that is mixture of a singlet and an SU(2) doublet. The model contains only fou…
Gamma-Ray Excess and the Minimal Dark Matter Model
Michael Duerr, Pavel Fileviez Perez, Juri Smirnov
We point out that the gamma-ray excesses in the galactic center and in the dwarf galaxy Reticulum II can both be well explained within the simplest dark matter model. We find that…
Scalar dark matter in the B-L model
Werner Rodejohann, Carlos E. Yaguna
The B-L extension of the Standard Model requires the existence of right-handed neutrinos and naturally realizes the seesaw mechanism of neutrino mass generation. We study the possi…
Scalar Dark Matter: Direct vs. Indirect Detection
Michael Duerr, Pavel Fileviez Perez, Juri Smirnov
We revisit the simplest model for dark matter. In this context the dark matter candidate is a real scalar field which interacts with the Standard Model particles through the Higgs…
New physics effects on neutrinoless double beta decay from right-handed current
Shao-Feng Ge, Manfred Lindner, Sudhanwa Patra
We study the impact of new physics contributions to neutrinoless double beta decay arising from right-handed current in comparison with the standard mechanism. If the light neutrin…