211 citations · 1.1k across the 18 of their papers we have counts for
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Breit-Wigner approximation for propagators of mixed unstable states
Elina Fuchs, Georg Weiglein
For systems of unstable particles that mix with each other, an approximation of the fully momentum-dependent propagator matrix is presented in terms of a sum of simple Breit-Wigner…
Phenomenology of relaxion-Higgs mixing
Thomas Flacke, Claudia Frugiuele, Elina Fuchs +2
We show that the relaxion generically stops its rolling at a point that breaks CP leading to relaxion-Higgs mixing. This opens the door to a variety of observational probes since t…
Constraining New Physics Models with Isotope Shift Spectroscopy
Claudia Frugiuele, Elina Fuchs, Gilad Perez +1
Isotope shifts of transition frequencies in atoms constrain generic long- and intermediate-range interactions. We focus on new physics scenarios that can be most strongly constrain…