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Constraints on the neutrino extension of the Standard Model and baryon asymmetry of the Universe
Volodymyr Gorkavenko, Oleksandr Khasai, Oleg Ruchayskiy +1
Heavy neutral leptons (HNLs) can cause new effective interactions of Standard Model particles, particularly charged lepton flavour violation (cLFV) processes. The non-observation o…
Extension of the Standard Model with Chern-Simons type interaction
V. Gorkavenko, I. Hrynchak, O. Khasai +1
Extension of the Standard Model with Chern-Simons type interaction contains a new vector massive boson (Chern-Simons boson) that couples to electroweak gauge bosons by the so-calle…
Constraints on the parameters of the neutrino extension of the Standard Model
Volodymyr Gorkavenko, Oleksandr Khasai, Oleg Ruchayskiy +1
Heavy neutral leptons (HNLs) are hypothetical particles proposed as a potential explanation for neutrino oscillations and the generation of the baryon asymmetry in the Universe. Th…
Divergences in the effective loop interaction of the Chern-Simons bosons with leptons. The unitary gauge case
Yuliia Borysenkova, Volodymyr Gorkavenko, Ivan Hrynchak +2
In this paper, we consider the extension of the Standard Model with Chern-Simons type interaction. There is a new vector massive boson (Chern-Simons bosons) in this extension. Usin…
Production of Chern-Simons bosons in decays of mesons
Yuliia Borysenkova, Pavlo Kashko, Mariia Tsarenkova +2
We consider the effective interaction of quarks with a new GeV-scale vector particle that couples to electroweak gauge bosons by the so-called effective Chern-Simons interaction. W…
Production of GeV-scale heavy neutral leptons in 3-body decays. Comparison with the PYTHIA approach
Volodymyr M. Gorkavenko, Yuliia R. Borysenkova, Mariia S. Tsarenkova
Despite the undeniable success of the Standard Model of particle physics (SM), there are some phenomena that the SM can't explain. These phenomena indicate that the SM has to be mo…