3 papers
hep-ph2021
Light-cone sum rules for proton decay
Ulrich Haisch, Amando Hala
We estimate the form factors that parametrise the hadronic matrix elements of proton-to-pion transitions with the help of light-cone sum rules. These form factors are relevant for…
hep-ph2019
Bounds on CP-violating Higgs-gluon interactions: the case of vanishing light-quark Yukawa couplings
Ulrich Haisch, Amando Hala
We investigate CP-violating interactions involving the Higgs boson and gluons within an effective field theory approach, focusing on the specific class of new-physics scenarios whe…
hep-ph2019
Sum rules for CP-violating operators of Weinberg type
Ulrich Haisch, Amando Hala
We estimate the size of the hadronic matrix elements of CP-violating three-gluon and four-gluon Weinberg operators using sum-rule techniques. In the three-gluon case, we are able t…