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On preheating in higgs inflation

Web17 de ago. de 2024 · The conditions are investigated under which this model can simultaneously ensure Higgs vacuum stability up to the Planck scale, successful inflation, non-thermal Leptogenesis via the pendulum mechanism, and light neutrino masses. These can be simultaneously achieved when the scalar lepton is minimally coupled to gravity, … Web6 de set. de 2024 · We study preheating following Higgs inflation in the Palatini formulation of gravity. We numerically evolve perturbations of the radial mode of the Higgs field …

CosmoLattice implementation of Higgs-Palatini preheating

WebThe International Conference "Dark Matter and Stars: Multi-Messenger Probes of Dark Matter and Modified Gravity" aims to bring together scientists working across the different research fields of astrophysics, cosmology, and modified gravity. We want to look at the dark matter problem from different perspectives, considering it to be of particle nature, as well … Web8 de mar. de 2024 · We propose a scenario of spontaneous leptogenesis in Higgs inflation with help from two additional operators: the Weinberg operator (Dim 5) and the derivative coupling of the Higgs field and the current of lepton number (Dim 6). The former is responsible for lepton number violation and the latter induces chemical potential for … sacred heart miramar beach https://bablito.com

Violent preheating in inflation with nonminimal coupling

Web18 de mai. de 2024 · We study the post-inflationary dynamics for reheating and freeze-in dark matter in the Higgs-R2 inflation model. Taking the perturbative approach for reheating, we determine the evolution of the temperature for radiation bath produced during reheating and determine the maximum and reheating temperatures of the Universe. … WebWe consider the preheating in the Higgs inflation. We argue that the choice of the higher dimensional operator affects the dynamics of the preheating. 2. Talk Plan 1. Higgs inflaiton 2. Preheating and higher dim. op. 3. Standard Model The Higgs boson is only elementary scalar in the Standard Model. sacred heart milwaukee wisconsin

A heatwave affair: mixed Higgs-R2 preheating on the lattice

Category:[1810.01304] Preheating after Higgs Inflation: Self-Resonance …

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On preheating in higgs inflation

On preheating in Higgs inflation - NASA/ADS

Web11 de jul. de 2024 · During inflation, we investigated the effect of the large/small on the non-gaussianity. We found that large/small could not provide the large non-gaussianity. In this paper, we divided the preheating stage to be quadratic regime and quartic regime. During the quadratic regime, the gauge bosons production is the most dominant. Web24 de mar. de 2024 · We study preheating following Higgs inflation in the Palatini formulation of gravity. We numerically evolve perturbations of the radial mode of the …

On preheating in higgs inflation

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Web1 de fev. de 2024 · We study particle production at the preheating era in inflation models with nonminimal coupling ξφ{sup 2} R and quartic potential λφ{sup 4}/4 for several cases: real scalar inflaton, complex scalar inflaton and Abelian Higgs inflaton. We point out that the preheating proceeds much more violently than previously thought. Web17 de abr. de 2015 · In the Palatini formulation, the field re-enters the very flat inflationary plateau during preheating, leading to new periods of inflation, and preheating takes less than one e-fold [194,195]. ...

Web12 de abr. de 2024 · We study the details of preheating in Palatini Higgs inflation. We show, that contrary to what happens in the metric formulation of the model, the Universe does not reheat through the creation of gauge bosons only, but also through the tachyonic production of Higgs excitations. Web9 de jul. de 2024 · Correspondingly, the typical energy of particles produced during the first stage of preheating can remain comparable to or below the cutoff scale of the theory. As …

WebOn Preheating in Higgs Inflation - CORE Reader WebWe consider the preheating in the Higgs inflation. We argue that the choice of the higher dimensional operator affects the dynamics of the preheating. 2. Talk Plan 1. Higgs …

WebMotivated by a recent discussion about the role of flat directions, a typical feature of supersymmetric models, in the process of particle production in the early universe a consistent model of inflation and preheating in supergravity with MSSM fields has been built. It is based on a model proposed by M. Kawasaki, M. Yamaguchi and T. Yanagida. …

WebThe meaning of PREHEAT is to heat (something) beforehand; especially : to heat (an oven) to a designated temperature before using for cooking. How to use preheat in a sentence. sacred heart ministries ohioWebRecently, the problem of unitarity violation during the preheating stage of Higgs inflation with a large non-minimal coupling has been much discussed in the literature. We point out that this problem can be translated into a strong coupling problem for the dimensionless effective coupling, and that the existence of these problems is highly dependent on the … isc beaumont txWeb1 de out. de 2024 · Download PDF Abstract: We perform an extensive analysis of linear fluctuations during preheating in Higgs inflation in the Einstein frame, where the fields … isc bill c-92Web11 de jul. de 2024 · During inflation, we investigated the effect of the large/small on the non-gaussianity. We found that large/small could not provide the large non-gaussianity. … isc bcsWeb4 de out. de 2013 · The preheating in the model was analysed in [37, 38]. After the end of inflation, χ < M P (), the potential can be approximated by a quadratic function (with just a small quartic part around the origin corresponding to the SM potential for χ < M P /ξ). sacred heart mondovi find a graveWeb6 de set. de 2024 · Our results provide further evidence that preheating in Palatini Higgs inflation happens within a single oscillation of the Higgs field about the bottom of its potential, consistent with the approximation of an instantaneous preheating. Export citation and abstract BibTeX RIS. isc baxterWebSudhakantha Girmohanta, Seung J. Lee, Yuichiro Nakai, Motoo Suzuki. Subjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO); High Energy Physics - Theory (hep-th) sacred heart mn liquor store