Results 21 to 30 of about 84,152 (313)

The supercooling window at weak and strong coupling

open access: yesJournal of High Energy Physics, 2023
Supercooled first order phase transitions are typical of theories where conformal symmetry is predominantly spontaneously broken. In these theories the fate of the flat scalar direction is highly sensitive to the size and the scaling dimension of the ...
Noam Levi   +2 more
doaj   +1 more source

Fate of electroweak symmetry in the early Universe: non-restoration and trapped vacua in the N2HDM [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2021
Extensions of the Higgs sector of the Standard Model allow for a rich cosmological history around the electroweak scale. We show that besides the possibility of strong first-order phase transitions, which have been thoroughly studied in the literature ...
T. Biekötter   +4 more
semanticscholar   +1 more source

First Order Phase Transitions in a Bianchi type-I universe [PDF]

open access: yes, 2000
Considering the theory of induced gravity coupled to matter fields, taking the $\phi ^6$ interaction potential model we evaluate the one-loop effective potential in a (3+1)dimensional Bianchi type-I spacetime.
Joy, Minu, Kuriakose, V. C.
core   +3 more sources

Multi-brane cosmology

open access: yesJournal of High Energy Physics, 2023
5D warped extra dimension models with multiple 3-branes can naturally realize multiple hierarchical mass scales which are ubiquitous in physics beyond the Standard Model.
Sudhakantha Girmohanta   +3 more
doaj   +1 more source

Finite-Size Effects on Nucleation in a First-Order Phase Transition [PDF]

open access: yes, 2003
We discuss finite-size effects on homogeneous nucleation in first-order phase transitions. We study their implications for cosmological phase transitions and to the hadronization of a quark-gluon plasma generated in high-energy heavy ion collisions. Very
Fraga, Eduardo S., Venugopalan, Raju
core   +2 more sources

First-Order Phase Transitions in an Early-Universe Environment [PDF]

open access: yes, 2000
In first-order phase transitions in the early universe, the bubble wall is expected to be significantly slowed-down by its interaction with the surrounding plasma.
Lilley, Matthew
core   +3 more sources

Inflationary Gravitational Waves and the Evolution of the Early Universe [PDF]

open access: yes, 2013
We study the effects of various phenomena which may have happened in the early universe on the spectrum of inflationary gravitational waves. The phenomena include phase transitions, entropy productions from non-relativistic matter, the production of dark
Jinno, Ryusuke   +2 more
core   +1 more source

Boosted dark matter from primordial black holes produced in a first-order phase transition

open access: yesJournal of High Energy Physics, 2023
During a cosmological first-order phase transition in a dark sector, fermion dark matter particles χ can form macroscopic Fermi balls that collapse to primordial black holes (PBHs) under certain conditions.
Danny Marfatia, Po-Yan Tseng
doaj   +1 more source

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