Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Electroweak epoch"'
Autor:
A. A. Araújo Filho, A. Yu. Petrov
Publikováno v:
International Journal of Modern Physics A. 36
We develop a thermal description for photon modes within the context of bouncing universe. Within this study, we start with a Lorentz-breaking dispersion relation which accounts for modified Friedmann equations with a bounce solution. We calculate th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb62313b56d76243129ac4bc2c6ca0be
https://doi.org/10.1142/s0217751x21502420
https://doi.org/10.1142/s0217751x21502420
Publikováno v:
European Physical Journal
European Physical Journal C: Particles and Fields, Vol 81, Iss 9, Pp 1-11 (2021)
European Physical Journal C: Particles and Fields, Vol 81, Iss 9, Pp 1-11 (2021)
Baryon inhomogeneities can be generated very early in the universe. These inhomogeneities then decay by particle diffusion in an expanding universe. We study the decay of these baryon inhomogeneities in the early universe using the diffusion equation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a70e4228cfc82927cdf80b31f85330d
https://doi.org/10.1140/epjc/s10052-021-09561-3
https://doi.org/10.1140/epjc/s10052-021-09561-3
Autor:
A. A. Araújo Filho, A. Yu. Petrov
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 9, Pp 1-16 (2021)
European Physical Journal
European Physical Journal
This paper is devoted to study the thermal aspects of a photon gas within the context of Planck-scale-modified dispersion relations. We study the spectrum of radiation and the correction to the \textit{Stefan$-$Boltzmann} law in different cases when
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e907bf7e105b3b3e8ef43ce28b0d33c
https://doi.org/10.1140/epjc/s10052-021-09639-y
https://doi.org/10.1140/epjc/s10052-021-09639-y
Autor:
Massimo Giovannini
The diffuse backgrounds of relic gravitons with frequencies ranging between the aHz band and the GHz region encode the ultimate information on the primeval evolution of the plasma and on the underlying theory of gravity well before the electroweak ep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef645da09182cabb292642181fe74a93
http://arxiv.org/abs/1912.07065
http://arxiv.org/abs/1912.07065
Publikováno v:
Physical Review
Precision cosmology provides a sensitive probe of extremely weakly coupled states due to thermal freeze-in production, with subsequent decays impacting physics during well-tested cosmological epochs. We explore the cosmological implications of the fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::960b06246038c037e120c4fb090b4561
https://doi.org/10.1103/physrevd.99.075004
https://doi.org/10.1103/physrevd.99.075004
Autor:
Massimo Giovannini
The maximally gyrotropic configurations of the hypermagnetic field at the electroweak epoch can induce a stochastic background of relic gravitational waves with comoving frequencies ranging from the $\mu$Hz to the kHz. Using two complementary approac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec72feb3c73a88bc52ce8e0a0ac3a194
http://arxiv.org/abs/1702.04293
http://arxiv.org/abs/1702.04293
Autor:
B. M. Barbashov, Andrzej Borowiec, Alexander F. Zakharov, K. N. Pichugin, V. N. Pervushin, Andrej Arbuzov, R. G. Nazmitdinov
Publikováno v:
Physics Letters B. 691:230-233
The General Relativity formulated with the aid of the spin connection coefficients is considered in the finite space geometry of similarity with the Dirac scalar dilaton. We show that the redshift evolution of the General Relativity describes the vac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39e33ee753595cac652c8bdd51ceca2f
https://doi.org/10.1016/j.physletb.2010.06.042
https://doi.org/10.1016/j.physletb.2010.06.042
Autor:
Massimo Giovannini
Publikováno v:
Physical Review D. 92
We investigate the production of the hypermagnetic gyrotropy when the electric and magnetic gauge couplings evolve at different rates, as it happens in the the relativistic theory of the Van der Waals forces. If a pseudo-scalar interaction breaks the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a214b2473f2a4ee452a422c289b21b53
https://doi.org/10.1103/physrevd.92.121301
https://doi.org/10.1103/physrevd.92.121301
We extend our recent derivation of the time evolution equations for the energy content of magnetic fields and turbulent motions for incompressible, homogeneous, and isotropic turbulence to include the case of nonvanishing helicity. These equations ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0751ef7818d4531586dd4d0bbb3bf1a2
http://arxiv.org/abs/1304.3621
http://arxiv.org/abs/1304.3621
Publikováno v:
Physical Review Letters. 77:2887-2890
We provide non-perturbative evidence for the fact that there is no hot electroweak phase transition at large Higgs masses, mH = 95, 120 and 180 GeV. This means that the line of first order phase transitions separating the symmetric and broken phases
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e8d5bd6697ed4ec8d6d3cef2b063d60
https://doi.org/10.1103/physrevlett.77.2887
https://doi.org/10.1103/physrevlett.77.2887