Zobrazeno 1 - 10
of 172
pro vyhledávání: '"Menkara A"'
Autor:
Menkara, Adriana
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 completions and their phenomenology. In Chapter 6 we consider a model
Externí odkaz:
http://arxiv.org/abs/2409.02129
We propose a consistent framework with the $U(1)$ Peccei-Quinn (PQ) symmetry for obtaining the initial condition for axion kinetic misalignment from inflation. We introduce a PQ complex scalar field and an extra Higgs doublet, which are conformally c
Externí odkaz:
http://arxiv.org/abs/2408.17013
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 relatively small axion decay constant. To this purpose, we consider a
Externí odkaz:
http://arxiv.org/abs/2310.17710
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 12, Pp 1-19 (2024)
Abstract We propose a consistent framework with the U(1) Peccei–Quinn (PQ) symmetry for obtaining the initial condition for axion kinetic misalignment from inflation. We introduce a PQ complex scalar field and an extra Higgs doublet, which are conf
Externí odkaz:
https://doaj.org/article/8524b8ccb20247aca1ab51ee1c8dafef
We propose a novel possibility for Higgs inflation where the perturbative unitarity below the Planck scale is ensured by construction and the successful predictions for inflation are accommodated. The conformal gravity coupling for the Higgs field le
Externí odkaz:
http://arxiv.org/abs/2306.07767
Autor:
Lee, Hyun Min, Menkara, Adriana
We study the hybrid inflation with a pseudo-Nambu-Goldstone boson inflaton and two waterfall scalar fields. The $Z_2$ symmetry for the waterfall fields keeps inflaton potential flat against quantum corrections coming from the waterfall couplings, and
Externí odkaz:
http://arxiv.org/abs/2304.08686
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-26 (2024)
Abstract 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 relatively small axion decay constant. To this purpose, we co
Externí odkaz:
https://doaj.org/article/6c860b0d148f447784c38c3fa54f99c7
We propose a novel model which extends the Standard Model (SM) by introducing a $SU(2)_D$ gauge symmetry. In this model, a dark $SU(2)_D$ Higgs doublet and a Higgs bi-doublet can contribute to the muon $g-2$ anomaly and the $W$ boson mass, remaining
Externí odkaz:
http://arxiv.org/abs/2208.12430
Autor:
Lee, Hyun Min, Menkara, Adriana
We propose a pseudo-Nambu-Goldstone inflation where twin waterfall fields coupled to the inflaton are responsible for the graceful exit from inflation by a waterfall transition. In this scenario, the $Z_2$ symmetry for the waterfall fields and the in
Externí odkaz:
http://arxiv.org/abs/2206.05523
We study the post-inflationary dynamics for reheating and freeze-in dark matter in the Higgs-$R^2$ inflation model. Taking the perturbative approach for reheating, we determine the evolution of the temperature for radiation bath produced during rehea
Externí odkaz:
http://arxiv.org/abs/2202.13063