Improved Constraints on the Variation of the Weak Scale from Big Bang Nucleosynthesis
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arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866916289530822656 |
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| author | Meyer, Helen Meißner, Ulf-G. |
| author_facet | Meyer, Helen Meißner, Ulf-G. |
| contents | 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 $^4$He abundance can be explained within $2σ$ by $-0.014 \leq δv / v \leq 0.026$, for deuterium we find the constraint $-0.005 \leq δv / v \leq -0.001$. These bounds are more stringent than what was found earlier. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_09325 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Improved Constraints on the Variation of the Weak Scale from Big Bang Nucleosynthesis Meyer, Helen Meißner, Ulf-G. High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics High Energy Physics - Lattice High Energy Physics - Theory Nuclear Theory 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 $^4$He abundance can be explained within $2σ$ by $-0.014 \leq δv / v \leq 0.026$, for deuterium we find the constraint $-0.005 \leq δv / v \leq -0.001$. These bounds are more stringent than what was found earlier. |
| title | Improved Constraints on the Variation of the Weak Scale from Big Bang Nucleosynthesis |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics High Energy Physics - Lattice High Energy Physics - Theory Nuclear Theory |
| url | https://arxiv.org/abs/2403.09325 |