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1781“…Residual late-time dark matter particle annihilations during and after Big Bang Nucleosynthesis (BBN) may alter the predicted cosmological abundances of the light elements. Within the constrained minimal supersymmetric extension of the Standard Model (the CMSSM) with a neutralino LSP, we find negligible effects on the abundances of Deuterium, He3, He4 and Li7 predicted by homogeneous BBN, but potentially a large enhancement in the predicted abundance of Li6. …”
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1782por Berger, AMaterias: “…General Relativity and Cosmology…”
Publicado 1984
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1783por Mavromatos, Nick E.“…As I will argue, there is a Starobinsky-type inflationary era characterising the broken supersymmetry phase in this model, which is compatible with the current cosmological data, provided a given constraint is satisfied among some tree-level parameters of the model and the renormalised cosmological constant of the de Sitter background used in the analysis. …”
Publicado 2015
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1784por Martins, C J A P“…Topological defects – cosmic strings, monopoles, domain walls or others - necessarily form at cosmological (and condensed matter) phase transitions. …”
Publicado 2016
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1785
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1786
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1787
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1788
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1789por Ellis, John, Garcia, Marcos A.G., Nagata, Natsumi, Nanopoulos, Dimitri V., Olive, Keith A.“…We develop a string-inspired model for particle cosmology, based on a flipped SU(5)×U(1) gauge group formulated in a no-scale supergravity framework. …”
Publicado 2019
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1790
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1791“…We argue that in models without a zero-temperature barrier and in scale-invariant models the period during which sound waves generate gravitational waves lasts only for a fraction of a Hubble time after a generic first-order cosmological phase transition, whereas it may last longer in some models with a zero-temperature barrier that feature severe supercooling. …”
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1792
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1793por Romero, Alba, Martinovic, Katarina, Callister, Thomas A., Guo, Huai-Ke, Martínez, Mario, Sakellariadou, Mairi, Yang, Feng-Wei, Zhao, YueMaterias: “…General Relativity and Cosmology…”
Publicado 2021
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1794
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1795
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1796
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1797“…In Pre-Big-Bang and in Ekpyrotic Cosmology, perturbations on cosmological scales today are generated from quantum vacuum fluctuations during a phase when the Universe is contracting (viewed in the Einstein frame). …”
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1798por Dotsenko, V S“…The operator algebra of the discrete state operators is calculated for the theory with non-vanishing cosmological constant.…”
Publicado 1992
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1799
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1800