Improved Constraints on the Variation of the Weak Scale from Big Bang Nucleosynthesis

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 ${}^4$He abundance can be explained within $2\sigma$ by $-0.014\le \delta v/v\le 0.026$, for deuterium we find the constraint $-0.005\le \delta v/v\le -0.001$. These bounds are more stringent than what was found earlier.

Now final version as published in JHEP

References in corpus (9)

• Coupled Variations of Fundamental Couplings and Primordial Nucleosynthesis
• Quark mass dependence of the rho and sigma from dispersion relations and Chiral Perturbation Theory
• Baryon-Baryon Interactions and Spin-Flavor Symmetry from Lattice Quantum Chromodynamics
• Primordial nucleosynthesis as a probe of fundamental physics parameters
• Quark mass variation constraints from Big Bang nucleosynthesis
• Low-energy theorems for nucleon-nucleon scattering at unphysical pion masses
• Anthropic considerations in nuclear physics
• $\theta$-dependence of light nuclei and nucleosynthesis
• Probing nuclear observables via primordial nucleosynthesis

Cited by in corpus (1)

• Baryon-baryon, meson-meson, and meson-baryon interactions in nonrelativistic QCD