Results 31 to 40 of about 84,152 (313)

Topological String Defect Formation During the Chiral Phase Transition [PDF]

open access: yes, 2001
We extend and generalize the seminal work of Brandenberger, Huang and Zhang on the formation of strings during chiral phase transitions(berger) and discuss the formation of abelian and non-abelian topological strings during such transitions in the early ...
A. P. BALACHANDRAN   +9 more
core   +5 more sources

Phase Transitions in the Early and Present Universe [PDF]

open access: yes, 2006
▪ Abstract The evolution of the universe is the ultimate laboratory for studying fundamental physics across energy scales that span approximately 25 orders of magnitude.
D. Boyanovsky   +2 more
semanticscholar   +1 more source

Primordial Black Hole Formation during First-Order Phase Transitions [PDF]

open access: yes, 1999
Primordial black holes (PBHs) may form in the early universe when pre-existing adiabatic density fluctuations enter into the cosmological horizon and recollapse. It has been suggested that PBH formation may be facilitated when fluctuations enter into the
B. D. Fields   +30 more
core   +2 more sources

Topological Defects and Cosmology [PDF]

open access: yes, 1998
Many particle physics models of matter admit solutions corresponding to stable or long-lived topological defects. In the context of standard cosmology it is then unavoidable that such defects will form during phase transitions in the very early Universe.
A Abrikosov   +99 more
core   +2 more sources

Searching for heavy leptophilic Z′: from lepton colliders to gravitational waves

open access: yesJournal of High Energy Physics, 2023
We study the phenomenology of leptophilic Z′ gauge bosons at the future high-energy e + e − and μ + μ − colliders, as well as at the gravitational wave observatories.
Arnab Dasgupta   +5 more
doaj   +1 more source

Relevant dilaton stabilization

open access: yesJournal of High Energy Physics, 2023
We propose a simple modification of the Goldberger-Wise mechanism for stabilizing the scale of spontaneously broken conformal theories. The source of explicit conformal symmetry breaking is a relevant operator with a small coefficient, as opposed to the ...
Csaba Csáki   +3 more
doaj   +1 more source

Quark-Gluon Plasma in the Early Universe [PDF]

open access: yes, 2001
A QCD phase transition in the early universe could have left inhomogeneities in the baryon to photon ratio and in isospin that might have affected nucleosynthesis later on.
Kapusta, Joseph I
core   +3 more sources

Axionic domain walls at Pulsar Timing Arrays: QCD bias and particle friction

open access: yesJournal of High Energy Physics, 2023
The recent results from the Pulsar Timing Array (PTA) collaborations show the first evidence for the detection of a stochastic background of gravitational waves at the nHz frequencies.
Simone Blasi   +3 more
doaj   +1 more source

The scalar singlet extension of the Standard Model: gravitational waves versus baryogenesis

open access: yesJournal of High Energy Physics, 2023
We study the possible gravitational wave signal and the viability of baryogenesis arising from the electroweak phase transition in an extension of the Standard Model (SM) by a scalar singlet field without a ℤ2 symmetry.
John Ellis   +4 more
doaj   +1 more source

Gravitational Waves from Phase Transitions at the Electroweak Scale and Beyond [PDF]

open access: yes, 2006
If there was a first order phase transition in the early universe, there should be an associated stochastic background of gravitational waves. In this paper, we point out that the characteristic frequency of the spectrum due to phase transitions which ...
Grojean, Christophe, Servant, Geraldine
core   +2 more sources

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