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16 papers · 2 filters
Searching for New Physics with processes
Bernat Capdevila, Andreas Crivellin, Sébastien Descotes-Genon +2
In recent years, intriguing hints for the violation of Lepton Flavour Universality (LFU) have been accumulated in semileptonic decays, both in the neutral-current transitions $…
A no-go theorem for non-standard explanations of the CP asymmetry
Vincenzo Cirigliano, Andreas Crivellin, Martin Hoferichter
The CP asymmetry in , as measured by the BaBar collaboration, differs from the Standard Model prediction by . Most non-standard interactions do not allow for th…
The HiggsTools Handbook: Concepts and observables for deciphering the Nature of the Higgs Sector
M. Boggia, J. M. Cruz-Martinez, Hjalte Frellesvig +15
This Report summarizes some of the activities of the HiggsTools Initial Training Network working group in the period 2015-2017. The main goal of this working group was to produce a…
in FDH
C. Gnendiger, A. Signer
We investigate the regularization-scheme dependent treatment of in the framework of dimensional regularization, mainly focusing on the four-dimensional helicity scheme (FDH…
Large in generic two-Higgs-doublet models
Andreas Crivellin, Julian Heeck, Dario Mueller
We investigate the possible size of in two-Higgs-doublet models with generic Yukawa couplings. Even though the corresponding rates are in general expected to be small due…
Search for axion-like dark matter through nuclear spin precession in electric and magnetic fields
C. Abel, N. J. Ayres, G. Ban +45
We report on a search for ultra-low-mass axion-like dark matter by analysing the ratio of the spin-precession frequencies of stored ultracold neutrons and Hg atoms for an a…