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Nuclear astrophysicists at war
Natural Sciences, Volume 4, Issue 1, January 2024.The Manhattan program not only opened the path to the nuclear age for humans, but also triggered a lot of new questions and research directions in nuclear physics and astrophysics that still inform the ideas in these fields today. Abstract The question of energy production in stars stimulated an entire generation of young physicists in the 1930s who ...
Michael Wiescher, Karlheinz Langanke
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Toward a self-consistent and unitary reaction network for big-bang nucleosynthesis
EPJ Web of Conferences, 2014 Unitarity, the mathematical expression of the conservation of probability in multichannel reactions, is an essential ingredient in the development of accurate nuclear reaction networks appropriate for nucleosynthesis in a variety of environments.
Paris Mark W. +8 more
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Big Bang Nucleosynthesis constraints on f(T,T) gravity
Physics Letters BBig Bang Nucleosynthesis provides us with an observational insight into the very early Universe. Since this mechanism of light element synthesis comes out of the standard model of particle cosmology which follows directly from General Relativity, it is ...
Sai Swagat Mishra +2 more
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3He(α,γ)7Be cross section measured using complementary techniques
EPJ Web of Conferences, 2014 The astrophysical S-factor for the 3He(α,γ)7Be reaction plays an important role in the Solar Standard Model and in the Big Bang Nucleosynthesis scenario. The advances from two recent experiments performed using complementary techniques at center of mass (
Carmona-Gallardo M. +8 more
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Spacetime deformation effect on the early universe and the PTOLEMY experiment
Physics Letters B, 2017 Using a fully-fledged formulation of gauge field theory deformed by the spacetime noncommutativity, we study its impact on relic neutrino direct detection, as proposed recently by the PTOLEMY experiment.
Raul Horvat +2 more
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Revisiting big-bang nucleosynthesis constraints on dark-matter annihilation
Physics Letters B, 2015 We study the effects of dark-matter annihilation during the epoch of big-bang nucleosynthesis on the primordial abundances of light elements. We improve the calculation of the light-element abundances by taking into account the effects of anti-nucleons ...
Masahiro Kawasaki +3 more
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Universe, 2020 One of the most important issues in an inflationary theory as standard or quintessential inflation is the mechanism to reheat the universe after the end of the inflationary period in order to match with the Hot Big Bang universe.
Jaume Haro Cases, Llibert Aresté Saló
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Comment on "Measurement of $d + ^7$Be reaction rates for Big-Bang nucleosynthesis" [PDF]
, 2020 A. Coc, B. Davids
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θ-dependence of light nuclei and nucleosynthesis
Physical Review Research, 2020 We investigate the impact of the QCD vacuum at nonzero θ on the properties of light nuclei, Big Bang nucleosynthesis, and stellar nucleosynthesis. Our analysis starts with a calculation of the θ-dependence of the neutron-proton mass difference and ...
Dean Lee +4 more
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EPJ Web of Conferences, 2018 We briefly describe the cosmological lithium problems followed by a summary of our recent theoretical work on the magnitude of the effects of electron screening, thepossible existence of dark matter parallel universes and the use of non-extensive (Tsal ...
Bertulani C.A. +2 more
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