Results 1 to 10 of about 547 (88)

Quantum scale of inflation and particle physics of the early universe [PDF]

open access: yesPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 1994
The quantum gravitational scale of inflation is calculated by finding a sharp probability peak in the distribution function of chaotic inflationary cosmologies driven by a scalar field with large negative constant $ξ$ of nonminimal interaction. In the case of the no-boundary state of the universe this peak corresponds to the eternal inflation, while ...
A Yu Kamenshchik
exaly   +3 more sources

Particle Physics in the Early Universe [PDF]

open access: yes, 1999
23 page LaTeX paper with 12 figures included using \epsf. Requires crckapb.sty. For publication in Proceedings of the NATO Advanced Study Institute on Techniques and Concepts of High-Energy Physics (10th : 1998 : St. Croix, V.I.) Ed.
Edward W Kolb, Kolb Edward W
exaly   +3 more sources

Phase transitions and the birth of early universe particle physics

open access: yesStudies in History and Philosophy of Science Part A
This paper provides a conceptual history of the development of early universe particle physics in the 1970s, focusing on the development of more sophisticated tools for constructing gauge-theories at finite-temperature. I start with a focus on early investigations into spontaneous symmetry restoration, and continue through the development of functional
Adam Koberinski
exaly   +3 more sources

Precision early universe cosmology from stochastic gravitational waves

open access: yesJournal of High Energy Physics, 2022
The causal tail of stochastic gravitational waves can be used to probe the energy density in free streaming relativistic species as well as measure g * (T) and beta functions β(T) as a function of temperature.
Dawid Brzeminski   +2 more
doaj   +1 more source

Probing primordial black holes from a first order phase transition through pulsar timing and gravitational wave signals

open access: yesJournal of High Energy Physics, 2023
In this work, we assess the sensitivity reach of pulsar timing array (PTA) measurements to probe pointlike primordial black holes (PBHs), with an extended mass distribution, which originate from collapsed Fermi balls that are formed through the ...
Jan Tristram Acuña, Po-Yan Tseng
doaj   +1 more source

The Standard Model of Particle Physics as a Conspiracy Theory and the Possible Role of the Higgs Boson in the Evolution of the Early Universe [PDF]

open access: yesActa Physica Polonica B, 2021
I am considering Veltman's 'The Infrared - Ultraviolet Connection' addressing the issue of quadratic divergences and the related huge radiative correction predicted by the electroweak Standard Model (SM) in the relationship between the bare and the renormalized theory, commonly called 'the hierarchy problem' which usually is claimed that this has to be
openaire   +4 more sources

Large primordial fluctuations in gravitational waves from phase transitions

open access: yesJournal of High Energy Physics, 2023
It is well-known that first-order phase transitions in the early universe can be a powerful source of observable stochastic gravitational wave backgrounds.
Arushi Bodas, Raman Sundrum
doaj   +1 more source

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

Doubly peaked induced stochastic gravitational wave background: testing baryogenesis from primordial black holes

open access: yesJournal of High Energy Physics, 2022
Hawking evaporation of primordial black holes (PBHs) can facilitate the generation of matter-antimatter asymmetry. We focus on ultra-low mass PBHs that briefly dominate the universe and evaporate before the big bang nucleosynthesis.
Nilanjandev Bhaumik   +2 more
doaj   +1 more source

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