204 citations · 2k across the 61 of their papers we have counts for
4 papers · 1 filter
Evading death by vacuum
A. Barroso, P. M. Ferreira, I. P. Ivanov +2
In the Standard Model, the Higgs potential allows only one minimum at tree-level. But the open possibility that there might be two scalar doublets enriches the vacuum structure, al…
Mass-degenerate Higgs bosons at 125 GeV in the Two-Higgs-Doublet Model
P. M. Ferreira, Howard E. Haber, Rui Santos +1
The analysis of the Higgs boson data by the ATLAS and CMS Collaborations appears to exhibit an excess of h --> gammaγevents above the Standard Model (SM) expectations; whereas no s…
A resource for signs and Feynman diagrams of the Standard Model
Jorge C. Romao, Joao P. Silva
When performing a full calculation within the Standard Model or its extensions, it is crucial that one utilizes a consistent set of signs for the gauge couplings and gauge fields.…
Probing the scalar-pseudoscalar mixing in the 125 GeV Higgs particle with current data
A. Barroso, P. M. Ferreira, Rui Santos +1
LHC has found hints for a Higgs particle of 125 GeV. We investigate the possibility that such a particle is a mixture of scalar and pseudoscalar states. For definiteness, we concen…