| Autor: |
Helen Meyer, Ulf-G. Meißner |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Journal of High Energy Physics, Vol 2024, Iss 6, Pp 1-20 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
1029-8479 |
| DOI: |
10.1007/JHEP06(2024)074 |
| Popis: |
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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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