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arxiv: astro-ph/0510386 · v1 · submitted 2005-10-13 · 🌌 astro-ph · gr-qc

Lorentz Invariance Breakdown and Constraints from Big-Bang Nucleosynthesis

G. Lambiase This is my paper
classification 🌌 astro-ph gr-qc
keywords lorentzabundancebig-bangboundsbreakdowncoefficientscolladayconstraints
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The Standard Model Extension formulated by Colladay and Kosteleck\'y is reviewed in the framework of the $^4He$ primordial abundance. Upper bounds on coefficients for the Lorentz violation are derived using the present observational data.

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  1. Temperature-Dependent CPT Violation: Constraints from Big Bang Nucleosynthesis

    hep-ph 2026-01 unverdicted novelty 5.0

    Constraints on temperature-dependent CPT-violating electron-positron mass asymmetry b0(T) = α T² from BBN abundances of 4He, D, and Neff give α ≳ 10^{-6} GeV^{-1} for keV-scale effects at BBN.