Cosmological bounds to the variation of the Higgs vacuum expectation value: BBN constraints

Details Cosmological bounds to the variation of the Higgs vacuum expectation value: BBN constraints Cosmological bounds to the variation of the Higgs vacuum expectation value: BBN constraints

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010nupha.846..157c&link_type=abstract

Nuclear Physics A, Volume 846, Issue 1-4, p. 157-173.

Physics

Nuclear Physics

3

Primordial Nucleosynthesis, Nn-Potential, Varying Fundamental Constants

Scientific paper

We calculate the dependence of the deuterium binding energy upon the Higgs vacuum expectation value (v), by using different effective nucleon-nucleon potentials, and set constraints on the time variation of the Higgs vacuum expectation value from Big Bang Nucleosynthesis. The analysis is based on the calculation of the abundances of primordial D, 4He and 7Li. Results are consistent with variations of v/Λ in the early universe, within 6σ if all available data on primordial abundances are considered in the analysis.

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