11 Result(s)
within
Alexander Merle
English
Elementary Particles, Quantum Field Theory
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Article
Open AccessConsistency of WIMP Dark Matter as radiative neutrino mass messenger
The scotogenic scenario provides an attractive approach to both Dark Matter and neutrino mass generation, in which the same symmetry that stabilises Dark Matter also ensures the radiative seesaw origin of neut...
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Article
Open AccessProbing flavor models with \(^{\text {76}}\) Ge-based experiments on neutrinoless double- \(\beta \) decay
The physics impact of a staged approach for double- \(\beta \) β ...
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Article
Open AccessRunning of radiative neutrino masses: the scotogenic model — revisited
A few years ago, it had been shown that effects stemming from renormalisation group running can be quite large in the scotogenic model, where neutrinos obtain their mass only via a 1-loop diagram (or, more gen...
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Article
Open AccessRenormalisation group corrections to neutrino mass sum rules
Neutrino mass sum rules are an important class of predictions in flavour models relating the Majorana phases to the neutrino masses. This leads, for instance, to enormous restrictions on the effective mass as ...
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Article
Open AccessEffective theory of a doubly charged singlet scalar: complementarity of neutrino physics and the LHC
We consider a rather minimal extension of the Standard Model involving just one extra particle, namely a single SU(2) L singlet scalar S ++ and its antiparticle
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Article
Open AccessCommon origin of reactor and sterile neutrino mixing
If the hints for light sterile neutrinos from short-baseline anomalies are to be taken seriously, global fits indicate active-sterile mixings of a magnitude comparable to the known reactor mixing. We therefore...
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Article
The power of neutrino mass sum rules for neutrinoless double beta decay experiments
Neutrino mass sum rules relate the three neutrino masses within generic classes of flavour models, leading to restrictions on the effective mass parameter measured in experiments on neutrinoless double beta de...
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Article
Running of radiative neutrino masses: the scotogenic model
We study the renormalization group equations of Ma’s scotogenic model, which generates an active neutrino mass at 1-loop level. In addition to other benefits, the main advantage of the mechanism exploited in t...
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Article
Explicit and spontaneous breaking of SU(3) into its finite subgroups
We investigate the breaking of SU(3) into its subgroups from the viewpoints of explicit and spontaneous breaking. A one-to-one link between these two approaches is given by the complex spherical harmonics, whi...
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Article
On the quantitative impact of the Schechter-Valle theorem
We evaluate the Schechter-Valle (Black Box) theorem quantitatively by considering the most general Lorentz invariant Lagrangian consisting of point-like operators for neutrinoless double beta decay. It is well...
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Article
Constraining new physics with a positive or negative signal of neutrino-less double beta decay
We investigate numerically how accurately one could constrain the strengths of different short-range contributions to neutrino-less double beta decay in effective field theory. Depending on the outcome of near...
