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Big Bang Nucleosynthesis Constraints on f (T, TG) Gravity [PDF]
Universe, 2022 We confront f(T,TG) gravity, with big bang nucleosynthesis (BBN) requirements. The former is obtained using both the torsion scalar, as well as the teleparallel equivalent of the Gauss–Bonnet term, in the Lagrangian, resulting to modified Friedmann ...
Petros Asimakis +3 more
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Constraining f(T) teleparallel gravity by big bang nucleosynthesis [PDF]
European Physical Journal C: Particles and Fields, 2017 We use Big Bang Nucleosynthesis (BBN) observational data on the primordial abundance of light elements to constrain f(T) gravity. The three most studied viable f(T) models, namely the power law, the exponential and the square-root exponential are ...
S. Capozziello +2 more
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Big Bang Nucleosynthesis constraints on space-time noncommutativity [PDF]
European Physical Journal C: Particles and FieldsWe consider the implications of modified dispersion relations, due to the noncommutativity of spacetime, for a photon gas filling the early Universe in the framework of the Big Bang nucleosynthesis (BBN) processes, during the period of light element ...
Teodora M. Matei +2 more
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The Neutron Mean Life and Big Bang Nucleosynthesis [PDF]
Universe, 2023 We explore the effect of neutron lifetime and its uncertainty on standard big bang nucleosynthesis (BBN). BBN describes the cosmic production of the light nuclides, 1H, D, 3H+3He, 4He, and 7Li+7Be, in the first minutes of cosmic time.
Tsung-Han Yeh +2 more
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Compatibility of big bang nucleosynthesis in some modified gravities
European Physical Journal C: Particles and Fields, 2022 This paper is devoted to investigate the implications of Einstein-Aether and modified Hořava–Lifshitz theories of gravity to the formation of light elements in the early universe named as big bang nucleosynthesis.
Abdul Malik Sultan, Abdul Jawad
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Big Bang Nucleosynthesis constraints on Barrow entropy
Physics Letters B, 2021 We use Big Bang Nucleosynthesis (BBN) data in order to impose constraints on the exponent of Barrow entropy. The latter is an extended entropy relation arising from the incorporation of quantum-gravitational effects on the black-hole structure ...
John D. Barrow +2 more
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Constraints on ultralight scalar dark matter with quadratic couplings
Journal of High Energy Physics, 2023 Ultralight dark matter is a compelling dark matter candidate. In this work, we examine the impact of quadratically-coupled ultralight dark matter on the predictions of Big Bang Nucleosynthesis.
Thomas Bouley +2 more
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Big Bang nucleosynthesis as a probe of new physics [PDF]
EPJ Web of Conferences, 2023 The Big Bang Nucleosynthesis (BBN) model is a cornerstone for the understanding of the evolution of the early universe, making seminal predictions that are in outstanding agreement with the present observation of light element abundances in the universe.
Bertulani Carlos A. +2 more
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BBN constraints on universally-coupled ultralight scalar dark matter
Journal of High Energy Physics, 2020 Ultralight scalar dark matter can interact with all massive Standard Model particles through a universal coupling. Such a coupling modifies the Standard Model particle masses and affects the dynamics of Big Bang Nucleosynthesis. We model the cosmological
Sergey Sibiryakov +2 more
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The long-standing connection of BBN and Indirect measurements: The 3He(n,p)3H reaction at Big Bang energies [PDF]
EPJ Web of Conferences, 2023 Nuclear reactions play a key role in the framework of the Big Bang Nucleosynthesis. A network of 12 principal reactions has been identified as the main path which drives the elemental nucleosynthesis in the first twenty minutes of the history of the ...
Pizzone R.G., Spampinato C.
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