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Improved constraints on the variation of the weak scale from Big Bang nucleosynthesis.
- Source :
-
Journal of High Energy Physics . Jun2024, Vol. 2024 Issue 6, p1-20. 20p. - Publication Year :
- 2024
-
Abstract
- We present an improved calculation of the light element abundances in the framework of Big Bang nucleosynthesis as a function of the Higgs vacuum expectation value v. We compare the methods of our calculation to previous literature including the recently published work of Burns et al. [1]. The PDG result for the 4He abundance can be explained within 2σ by −0.014 ≤ δv/v ≤ 0.026, for deuterium we find the constraint −0.005 ≤ δv/v ≤ −0.001. These bounds are more stringent than what was found earlier. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 11266708
- Volume :
- 2024
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Journal of High Energy Physics
- Publication Type :
- Academic Journal
- Accession number :
- 179916008
- Full Text :
- https://doi.org/10.1007/JHEP06(2024)074