Matches in SemOpenAlex for { <https://semopenalex.org/work/W4298084507> ?p ?o ?g. }
Showing items 1 to 59 of
59
with 100 items per page.
- W4298084507 abstract "Within the first 20 minutes of the evolution of the hot, dense, early Universe, astrophysically interesting abundances of deuterium, helium-3, helium-4, and lithium-7 were synthesized by the cosmic nuclear reactor. The primordial abundances of these light nuclides produced during Big Bang Nucleosynthesis (BBN) are sensitive to the universal density of baryons and to the early-Universe expansion rate which at early epochs is governed by the energy density in relativistic particles (``radiation'') such as photons and neutrinos. Some 380 kyr later, when the cosmic background radiation (CBR) radiation was freed from the embrace of the ionized plasma of protons and electrons, the spectrum of temperature fluctuations imprinted on the CBR also depended on the baryon and radiation densities. The comparison between the constraints imposed by BBN and those from the CBR reveals a remarkably consistent picture of the Universe at two widely separated epochs in its evolution. Combining these two probes leads to new and tighter constraints on the baryon density at present, on possible new physics beyond the standard model of particle physics, as well as identifying some challenges to astronomy and astrophysics. In this review the current status of BBN will be presented along with the associated estimates of the baryon density and of the energy density in radiation." @default.
- W4298084507 created "2022-10-01" @default.
- W4298084507 creator A5003804613 @default.
- W4298084507 date "2003-07-11" @default.
- W4298084507 modified "2023-09-29" @default.
- W4298084507 title "Big Bang Nucleosynthesis: Probing the First 20 Minutes" @default.
- W4298084507 doi "https://doi.org/10.48550/arxiv.astro-ph/0307244" @default.
- W4298084507 hasPublicationYear "2003" @default.
- W4298084507 type Work @default.
- W4298084507 citedByCount "0" @default.
- W4298084507 crossrefType "posted-content" @default.
- W4298084507 hasAuthorship W4298084507A5003804613 @default.
- W4298084507 hasBestOaLocation W42980845071 @default.
- W4298084507 hasConcept C10138342 @default.
- W4298084507 hasConcept C111309251 @default.
- W4298084507 hasConcept C112473583 @default.
- W4298084507 hasConcept C121332964 @default.
- W4298084507 hasConcept C1276947 @default.
- W4298084507 hasConcept C150846664 @default.
- W4298084507 hasConcept C154153549 @default.
- W4298084507 hasConcept C162324750 @default.
- W4298084507 hasConcept C16743098 @default.
- W4298084507 hasConcept C185544564 @default.
- W4298084507 hasConcept C186453547 @default.
- W4298084507 hasConcept C188386629 @default.
- W4298084507 hasConcept C4397270 @default.
- W4298084507 hasConcept C44870925 @default.
- W4298084507 hasConcept C84999194 @default.
- W4298084507 hasConceptScore W4298084507C10138342 @default.
- W4298084507 hasConceptScore W4298084507C111309251 @default.
- W4298084507 hasConceptScore W4298084507C112473583 @default.
- W4298084507 hasConceptScore W4298084507C121332964 @default.
- W4298084507 hasConceptScore W4298084507C1276947 @default.
- W4298084507 hasConceptScore W4298084507C150846664 @default.
- W4298084507 hasConceptScore W4298084507C154153549 @default.
- W4298084507 hasConceptScore W4298084507C162324750 @default.
- W4298084507 hasConceptScore W4298084507C16743098 @default.
- W4298084507 hasConceptScore W4298084507C185544564 @default.
- W4298084507 hasConceptScore W4298084507C186453547 @default.
- W4298084507 hasConceptScore W4298084507C188386629 @default.
- W4298084507 hasConceptScore W4298084507C4397270 @default.
- W4298084507 hasConceptScore W4298084507C44870925 @default.
- W4298084507 hasConceptScore W4298084507C84999194 @default.
- W4298084507 hasLocation W42980845071 @default.
- W4298084507 hasOpenAccess W4298084507 @default.
- W4298084507 hasPrimaryLocation W42980845071 @default.
- W4298084507 hasRelatedWork W1631378258 @default.
- W4298084507 hasRelatedWork W1635496411 @default.
- W4298084507 hasRelatedWork W1834042463 @default.
- W4298084507 hasRelatedWork W1965082451 @default.
- W4298084507 hasRelatedWork W2033543877 @default.
- W4298084507 hasRelatedWork W2085129044 @default.
- W4298084507 hasRelatedWork W2088894156 @default.
- W4298084507 hasRelatedWork W2092699373 @default.
- W4298084507 hasRelatedWork W4298084507 @default.
- W4298084507 hasRelatedWork W4310025824 @default.
- W4298084507 isParatext "false" @default.
- W4298084507 isRetracted "false" @default.
- W4298084507 workType "article" @default.