5 papers
Pseudo-Nambu-Goldstone inflation with symmetric waterfall fields
Hyun Min Lee, Adriana G. Menkara
We propose a hybrid inflation model where a pseudo-Nambu-Goldstone boson inflaton couples to waterfall scalar fields respecting a symmetry. We identify the phases for the…
pNGB Higgs Naturalness at a Tipping Point
Matthew McCullough, Adriana Menkara, Ennio Salvioni
In scenarios where the Higgs is viewed as a pseudo Nambu-Goldstone boson (pNGB) the question of naturalness finds itself, from a phenomenological perspective, at a tipping point be…
Inflation models with Peccei-Quinn symmetry and axion kinetic misalignment
Hyun Min Lee, Adriana G. Menkara, Myeong-Jung Seong +1
We propose a consistent framework with the Peccei-Quinn (PQ) symmetry for obtaining the initial condition for axion kinetic misalignment from inflation. We introduce a PQ co…
Towards self-consistent models for Inflation and Early Universe Cosmology
Adriana Menkara
In this PhD thesis we take smalls steps towards linking our knowledge of the Early Universe with our knowledge of particle physics. Chapters 3, 4 and 5 deal with Higgs inflation UV…
Peccei-Quinn Inflation at the Pole and Axion Kinetic Misalignment
Hyun Min Lee, Adriana G. Menkara, Myeong-Jung Seong +1
We propose a minimal extension of the Standard Model with the Peccei-Quinn (PQ) scalar field and explain the relic density of the QCD axion through the kinetic misalignment with a…