Results 11 to 20 of about 2,154 (233)

Phase transitions and the birth of early universe particle physics [PDF]

open access: yes, 2023
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.
Koberinski, Adam
core   +2 more sources

Topics in Theoretical Particle Physics and Cosmology [PDF]

open access: yes, 2007
We first delve into particle phenomenology with a study of soft-collinear effective theory (SCET), an effective theory for Quantum Chromodynamics for when all particles are approximately on their light-cones. In particular, we study the matching of SCET(
Salem, Michael Phillip
core   +1 more source

Topics in Theoretical Particle Physics and Cosmology beyond the Standard Model [PDF]

open access: yes, 2006
We review our understanding of spin-1 and spin-2 massless particles as mediators of long-range forces. We discuss how a quantum description of such particles that is compatible with Lorentz covariance leads to gauge invariance, a mathematical redundancy
Jenkins, Alejandro
core   +1 more source

The Lukewarm Frontier: Some Cosmological Consequences of 'Low Energy' Physics [PDF]

open access: yes, 2010
In this thesis, we present four projects featuring low characteristic energy scales relative to the scales relevant for supersymmetric dark matter production or inflation. We present a telescope search for decaying relic axions in the 3 − 8 eV mass range.
Grin, Daniel
core   +1 more source

Inflation, electroweak phase transition, and Higgs searches at the LHC in the two-Higgs-doublet model

open access: yesJournal of High Energy Physics, 2022
Combining the Higgs searches at the LHC, we study the Higgs inflation in the type-I and type-II two-Higgs-doublet models with non-minimally couplings to gravity.
Lei Wang
doaj   +1 more source

Axion inflation in the strong-backreaction regime: decay of the Anber-Sorbo solution

open access: yesJournal of High Energy Physics, 2023
Axion inflation coupled to Abelian gauge fields via a Chern-Simons-like term of the form ϕF F ~ $$ \phi F\overset{\sim }{F} $$ represents an attractive inflationary model with a rich phenomenology, including the production of magnetic fields, black holes,
Richard von Eckardstein   +4 more
doaj   +1 more source

A Review of Neutrino Decoupling from the Early Universe to the Current Universe

open access: yes, 2022
We review the distortions of spectra of relic neutrinos due to the interactions with electrons, positrons, and neutrinos in the early universe. We solve integro-differential kinetic equations for the neutrino density matrix, including vacuum three-flavor
Masahide Yamaguchi, Kensuke Akita
core   +1 more source

Dark matter substructures affect dark matter-electron scattering in xenon-based direct detection experiments

open access: yesJournal of High Energy Physics, 2023
Recent sky surveys have discovered a large number of stellar substructures. It is highly likely that there are dark matter (DM) counterparts to these stellar substructures.
Tarak Nath Maity, Ranjan Laha
doaj   +1 more source

WIMPs, FIMPs, and Inflaton phenomenology via reheating, CMB and ∆N eff

open access: yesJournal of High Energy Physics, 2023
In this paper, we extensively analyzed the reheating dynamics after inflation and looked into its possible implication on dark matter (DM) and inflaton phenomenology.
MD Riajul Haque   +2 more
doaj   +1 more source

On Under-determination in Cosmology [PDF]

open access: yes, 2012
I discuss how modern cosmology illustrates under-determination of theoretical hypotheses by data, in ways that are different from most philosophical discussions.
Butterfield, Jeremy, Jeremy Butterfield
core   +1 more source

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