Results 61 to 70 of about 41,842 (275)

Consequences of neutrino self-interactions for weak decoupling and big bang nucleosynthesis [PDF]

Journal of Cosmology and Astroparticle Physics, 2020
We calculate and discuss the implications of neutrino self-interactions for the physics of weak decoupling and big bang nucleosynthesis (BBN) in the early universe.
E. Grohs, G. Fuller, M. Sen
semanticscholar   +1 more source

Big Bang Nucleosynthesis hunts chameleon dark matter

Journal of High Energy Physics, 2020
We study the chameleon field dark matter, dubbed scalaron, in F (R) gravity in the Big Bang Nucleosynthesis (BBN) epoch. With an R 2-correction term required to solve the singularity problem for F (R) gravity, we first find that the scalaron dynamics is ...
Hua Chen, Taishi Katsuragawa, Shinya Matsuzaki, Taotao Qiu   +3 more
doaj   +1 more source

Underground measurement at LUNA found no evidence for a low-energy resonance in the 6Li(p, γ)7Be reaction [PDF]

EPJ Web of Conferences, 2022
The 6Li(p,γ)7Be reaction is involved in all three main nucleosynthesis scenarios: Big Bang Nucleosynthesis, the interaction of cosmic rays with interstellar matter, and stellar nucleosynthesis.
Piatti Denise
doaj   +1 more source

Big-bang nucleosynthesis with sub-GeV massive decaying particles [PDF]

Journal of Cosmology and Astroparticle Physics, 2020
We consider the effects of the injections of energetic photon and electron (or positron) on the big-bang nucleosynthesis. We study the photodissociation of light elements in the early Universe paying particular attention to the case that the injection ...
M. Kawasaki, K. Kohri, T. Moroi, Kai Murai, H. Murayama   +4 more
semanticscholar   +1 more source

Reheating Temperature and Gauge Mediation Models of Supersymmetry Breaking [PDF]

, 2009
For supersymmetric theories with gravitino dark matter, the maximal reheating temperature consistent with big bang nucleosynthesis bounds arises when the physical gaugino masses are degenerate.
A. Rizzi ., B. Bajc, C. Cheung, C.F. Berger, CDF collaboration, D.G. Cerdeno, D.G. Cerdeno, G. Hiller, G.F. Giudice, J.A. Bagger, J.L. Feng, J.R. Ellis, James D Wells, K. Jedamzik, K. Jedamzik, K.-Y. Choi, Krzysztof Turzyński, L. Covi, L. Roszkowski, L.M. Carpenter, LEP2 SUSY working group, M. Buican, M. Ratz, Marek Olechowski, S. Antusch, S. Bailly, Stefan Pokorski, WMAP collaboration, Z. Lalak   +28 more
core   +2 more sources

Big-bang nucleosynthesis and gravitinos [PDF]

Physical Review D, 2008
27 pages, 16 ...
Kazunori Kohri, Masahiro Kawasaki, Masahiro Kawasaki, Akira Yotsuyanagi, Takeo Moroi   +4 more
openaire   +3 more sources

Big bang nucleosynthesis and entropy evolution in f(R, T) gravity [PDF]

The European Physical Journal Plus, 2020
The present article is devoted to constraining the model parameter χ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek ...
S. Bhattacharjee, P. Sahoo
semanticscholar   +1 more source

THE ²H(alpha, gamma)⁶LI REACTION AT LUNA AND BIG BANG NUCLEOSYNTHETIS

Acta Polytechnica, 2013
The 2H(α, γ)6Li reaction is the leading process for the production of 6Li in standard Big Bang Nucleosynthesis. Recent observations of lithium abundance in metal-poor halo stars suggest that there might be a 6Li plateau, similar to the well-known Spite ...
Carlo Gustavino
doaj   +1 more source

The violent Universe: the Big Bang [PDF]

, 2010
Four lectures on Big Bang cosmology, including microwave background radiation, Big Bang nucleosynthesis, dark matter, inflation, and baryogenesis.Comment: 47 pages, 19 figures, Set of four lectures given at the 2009 European School of High-Energy ...
Olive, Keith A.
core   +1 more source

My Name Is Forrest Mozer

, 2022
Perspectives of Earth and Space Scientists, Volume 3, Issue 1, December 2022.
Forrest Mozer
wiley   +1 more source