676 citations · 5.8k across the 102 of their papers we have counts for
102 papers
Analytic Approximations for Fermionic Preheating
Heather E. Logan, Daniel Stolarski, Fazlul Yasin
Non-thermal fermions can be produced non-perturbatively in the early universe during coherent oscillations of a scalar field. We explore fermion production in inflation th…
Unavoidable Higgs coupling deviations in the -symmetric Georgi-Machacek model
Carlos Henrique de Lima, Heather E. Logan
The -symmetric version of the Georgi-Machacek model does not possess a decoupling limit in which all the new particles can be made arbitrarily heavy, opening the possibility…
Lectures on perturbative unitarity and decoupling in Higgs physics
Heather E. Logan
These lectures are a pedagogical introduction to the application of perturbative unitarity to Higgs physics within and beyond the Standard Model (SM). I begin with a review of how…
CP-Violation in the 3-Higgs Doublet Model: CP-Asymmetries from Charged Higgs Bosons and Electric Dipole Moments
Andrew G. Akeroyd, Heather E. Logan, Stefano Moretti +3
We propose a CP-violating source in the charged Higgs sector of a 3-Higgs Doublet Model (3HDM) that will contribute to three CP-asymmetry observables for low energy processes. In t…
Vacuum structure of the symmetric Georgi-Machacek model
Duarte Azevedo, Pedro M. Ferreira, Heather E. Logan +1
We discuss the vacuum structure of a version of the Georgi-Machecek model with an exact symmetry acting on the triplet fields. Besides the usual custodial-symmetric…
CP violation from charged Higgs bosons in the three Higgs doublet model
Heather E. Logan, Stefano Moretti, Diana Rojas-Ciofalo +1
We demonstrate a new type of cancellation of contributions to the electron and neutron electric dipole moments (EDMs) that occurs in three Higgs doublet models (3HDMs) when CP viol…