Results 101 to 110 of about 21,366 (192)

Assessing Big-Bang Nucleosynthesis [PDF]

, 1995
Craig J. Copi, David N. Schramm, Michael S. Turner   +2 more
openalex   +1 more source

Bounds on variations of the strange quark mass from Big Bang nucleosynthesis

Journal of High Energy Physics
We analyze the effect of a variation of the strange nucleon matrix element N m s s ¯ s N $$ \left\langle N|{m}_s\overline{s}s|N\right\rangle $$ on the abundances of the light elements produced in the Big Bang.
Ulf-G. Meißner, Bernard Metsch, Helen Meyer   +2 more
doaj   +1 more source

Big-bang nucleosynthesis revisited [PDF]

The homogeneous big-bang nucleosynthesis yields of D, He-3, He-4, and Li-7 are computed taking into account recent measurements of the neutron mean-life as well as updates of several nuclear reaction rates which primarily affect the production of Li-7 ...
Olive, Keith A., Schramm, David N., Steigman, Gary, Walker, Terry P.   +3 more
core   +1 more source

Big bang nucleosynthesis: an accurate determination of light element yields [PDF]

, 2000
S. Esposito, G. Mangano, G. Miele, O. Pisanti   +3 more
openalex   +1 more source

New nuclear physics for big bang nucleosynthesis [PDF]

, 2010
R. N. Boyd, C. R. Brune, George M. Fuller, Christel Smith   +3 more
openalex   +1 more source

86th Annual Meeting of the Meteoritical Society (2024)

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

Big-bang nucleosynthesis and leptogenesis in the CMSSM [PDF]

, 2018
Munehiro Kubo, Joe Sato, Takashi Shimomura, Yasutaka Takanishi, Masato Yamanaka   +4 more
openalex   +1 more source

Updated Big Bang nucleosynthesis bounds on long-lived particles from dark sectors

Physics Letters B
As electromagnetic showers may alter the abundance of Helium, Lithium, and Deuterium, we can place severe constraints on the lifetime and amount of electromagnetic energy injected by long-lived particles.
J.R. Alves, L. Angel, L. Guedes, R.M.P. Neves, F.S. Queiroz, D.R. da Silva, R. Silva, Y. Villamizar   +7 more
doaj   +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

The Origins of Lithium Enhancement in Polluted White Dwarfs

The Astrophysical Journal
The bulk abundances of exoplanetesimals can be measured when they are accreted by white dwarfs. Recently, lithium from the accretion of exoplanetesimals was detected in relatively high levels in multiple white dwarfs.
Benjamin C. Kaiser, J. Christopher Clemens, Simon Blouin, Erik Dennihy, Patrick Dufour, Ryan J. Hegedus, Joshua S. Reding   +6 more
doaj   +1 more source