Results 111 to 120 of about 20,829 (241)

Big Bang Nucleosynthesis: Consistency or Crisis? [PDF]

, 1995
The early, hot, dense, expanding Universe was a primordial reactor in which the light nuclides D, 3He, 4He and 7Li were synthesized in astrophysically interesting abundances. The challenge to the standard hot big bang model (Big Bang Nucleosynthesis = BBN) is the comparison between the observed and predicted abundances, the latter which depend only on ...
openaire   +3 more sources

Mirror matter can alleviate the cosmological lithium problem

, 2013
The abundance of lithium-7 confronts cosmology with a long lasting problem between the predictions of standard big bang nucleosynthesis and the baryonic density determined from the cosmic microwave background observations.
Coc, Alain, Uzan, Jean-Philippe, Vangioni, Elisabeth   +2 more
core   +3 more sources

From (p)reheating to nucleosynthesis

, 2001
This article gives a brief qualitative description of the possible evolution of the early Universe between the end of an inflationary epoch and the end of Big Bang nucleosynthesis.
Bergstrom L, Birrell N D, Bonifacio P, Bringmann T, Börner G, de Bernardis P, Felder G, Finelli F, Giudice G F, Gruenwald R, Hawking S W, Jedamzik K, Jedamzik K, Karsten Jedamzik, Kolb E W, Kolb E W, Kurki-Suonio H, Kusenko A, Kuzmin V A, Langlois D, Lasenby A, Lasserre T, Levshakov S A, Liddle A, Peloso M, Pryke C, Sarkar S, Sauer D, Stompor R, Tytler D, Wands D, Zel'dovich Ya B   +31 more
core   +1 more source

Big Bang nucleosynthesis

One of the most compelling pieces of evidence of the Hot Big Bang model is the realisation and confirmation that some nuclides were created shortly after the Big Bang. This process is referred to as Big Bang nucleosynthesis (or, sometimes, primordial nucleosynthesis), and is the end-product of putting neutrons and protons in a hot, expanding Universe ...
openaire   +2 more sources

Big Bang Nucleosynthesis and Particle Dark Matter

, 2009
We review how our current understanding of the light element synthesis during the Big Bang Nucleosynthesis era may help shed light on the identity of particle dark matter.Comment: a mini-review for the NJP special issue on dark ...
Adriani O, Asplund M, Bailly S Jedamzik K Moultaka G, Boesgaard A M, Bonifacio P, Burles S, Cayrel R, Cayrel R, Cyburt R H, Cyburt R H Fields B D Olive K A, Dunkley J, Fields B D, Fields B Sarkar S, Fukugita M, Hosford A Ryan S G Perez A E G Norris J E Olive K A, Iocco F Mangano G Miele G Pisanti O Serpico P D, Izotov Y I, Jedamzik K, Jedamzik K, Kamimura M Kino Y Hiyama E, Karsten Jedamzik, Khlopov M Y, Kusakabe M Kajino T Boyd R N Yoshida T Mathews G J, Levitan Y L, Levshakov S A Dessauges-Zavadsky M D'Odorico S Molaro P, Maxim Pospelov, O'Meara J M, Olive K A, Peimbert M Luridiana V Peimbert A, Pettini M Zych B J Murphy M T Lewis A Steidel C C, Porter R L, Pospelov M, Pospelov M, Prantzos N, Primas F Asplund M Nissen P E Hill V, Richard O, Ryan S G, Sarkar S   +37 more
core   +3 more sources

86th Annual Meeting of the Meteoritical Society (2024)

Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source

Neutrino at Different Epochs of the Friedmann Universe

Universe
At least two relics of the Big Bang have survived: the cosmological microwave background (CMB) and the cosmological neutrino background (CνB). Being the second most abundant particle in the universe, the neutrino has a significant impact on its evolution
Alexandre V. Ivanchik, Oleg A. Kurichin, Vlad Yu. Yurchenko   +2 more
doaj   +1 more source

From deep earth to deep stars: A different nuclear reaction path to generate calcium in ancient stars. [PDF]

Innovation (Camb), 2023
Yan H, Shi J, Hou S.
europepmc   +1 more source

Generalized limits to the number of light particle degrees of freedom from big bang nucleosynthesis [PDF]

, 1999
Keith A. Olive, David D. Thomas
openalex   +1 more source

Big Bang Nucleosynthesis: Reprise

, 1999
23 pages (uses iopconf1.sty) including 8 figures (epsf); updated version of invited talk at the Second International Workshop on Dark Matter in Astro- and Particle Physics, Heidelberg, 20-25 July ...
openaire   +3 more sources