An interacting sterile neutrino component via pseudoscalar mediator reconciles CMB and DESI DR2 BAO measurements with 2.7 sigma preference and reduces H0 tension to 2.4 sigma.
Diaz et al., arXiv:1906.00045
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A sterile neutrino with a novel density-dependent matter potential Vs resolves multiple oscillation anomalies when Vs is negative and mixing angles are small.
The reactor antineutrino anomaly is revived to 2.2 sigma with the 2023 flux calculation, showing 3.8 sigma tension with gallium data that drops to 1.3 sigma when gallium uncertainties are enlarged.
Updated nuclear calculations lower the gallium anomaly significance to 2.3σ.
Updated global fit of neutrino oscillation data gives precise measurements of mixing parameters with a 2.5 sigma preference for normal mass ordering.
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Recoupled Dark Radiation reconciling CMB and DESI BAO measurements
An interacting sterile neutrino component via pseudoscalar mediator reconciles CMB and DESI DR2 BAO measurements with 2.7 sigma preference and reduces H0 tension to 2.4 sigma.