NLO Baryon Asymmetry: Closing the Last Numerical Gap

Key Points

• The aim is to derive the next-to-leading-order correction to the UFFT baryon asymmetry formula.
• Derived the next-to-leading-order correction to an existing formula.
• Analyzed 220 independent topological channels affecting baryon asymmetry.
• Calculated results related to the electroweak bubble wall.”
• The leading-order result was 1.8% below the observed value.
• The NLO correction results in a baryon asymmetry of 6.109×10⁻¹⁰, narrowing the gap.
• The new calculation is within 0.09σ of the Planck 2018 results.

Abstract