Results 11 to 20 of about 121,100 (119)
Models of inflation and their predictions [PDF]
, 1999 Taking field theory seriously, inflation model-building is difficult but not impossible. The observed value of the spectral index of the adiabatic density perturbation is starting to discriminate between models, and may well pick out a unique one in the ...
Lyth, David H
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Early Universe models from Noncommutative Geometry [PDF]
, 2009 We investigate cosmological predictions on the early universe based on the noncommutative geometry models of gravity coupled to matter. Using the renormalization group analysis for the Standard Model with right handed neutrinos and Majorana mass terms ...
Marcolli, Matilde, Pierpaoli, Elena
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Dark matter from Affleck-Dine baryogenesis [PDF]
, 1999 Fragmentation of the Affleck-Dine condensate into Q-balls could fill the Universe with dark matter either in the form of stable baryonic balls, or LSP produced from the decay of unstable Q-balls.
Kusenko, Alexander
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First-Order Phase Transitions in an Early-Universe Environment [PDF]
, 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
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The Origin of Cosmic Magnetic Fields
, 2000 In this talk, I review a number of particle-physics models that lead to the creation of magnetic fields in the early universe and address the complex problem of evolving such primordial magnetic fields into the fields observed today.
Tornkvist, Ola
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Axion as a non-WIMP dark matter candidate [PDF]
, 2017 The axion arises in well-motivated extensions of the Standard Model of particle physics and is regarded as an alternative to the weakly interacting massive particle paradigm to explain the nature of dark matter.
Saikawa, Ken'ichi
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A Minimal Supersymmetric Model of Particle Physics and the Early Universe
, 2013 We consider a minimal supersymmetric extension of the Standard Model, with right-handed neutrinos and local B-L, the difference between baryon and lepton number, a symmetry which is spontaneously broken at the scale of grand unification. To a large extent, the parameters of the model are determined by gauge and Yukawa couplings of quarks and leptons ...
Buchmuller, W. +3 more
openaire +3 more sources
Neutrinos And Big Bang Nucleosynthesis
, 2005 The early universe provides a unique laboratory for probing the frontiers of particle physics in general and neutrino physics in particular. The primordial abundances of the relic nuclei produced during the first few minutes of the evolution of the ...
Bonifacio P +8 more
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Supernovae data: Cosmological Constant or ruling out the Cosmological Principle ? [PDF]
, 2000 Analysed in the framework of homogeneous FLRW models, the magnitude-redshift data from high redshift supernovae yield, as a primary result, a strictly positive cosmological constant.
Célérier, Marie-Noëlle
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Theory Challenges of the Accelerating Universe [PDF]
, 2006 The accelerating expansion of the universe presents an exciting, fundamental challenge to the standard models of particle physics and cosmology. I highlight some of the outstanding challenges in both developing theoretical models and interpreting without
+7 more
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