Quintom-B dark energy relaxes the DESI neutrino-mass tension; normal ordering

Purpose

Show that SVT's quintom-B dark energy relaxes the DESI DR2 cosmological neutrino-mass tension and predicts the normal ordering.

What it proves

The $\Lambda$ CDM bound $\sum m_\nu<0.064$ eV breaches the normal-ordering floor (0.059 eV) at ~3σ. In the SVT $w_0w_a$ CDM background the bound widens to $<0.163$ eV, dropping the tension to ~1.2σ; SVT's chiral-mode sector is a normal hierarchy.

Relation to current theory

DESI itself notes the tension relaxes for evolving dark energy. SVT's dynamical EoS (sim_81) is exactly such a background, tying the dark-energy and neutrino sectors together.

Key equation

\text{tension} = (\,m_\nu^{\rm floor} - \mu_{\rm eff}\,)/\sigma

Interactive visualization

DESI neutrino-mass tension (sim data)

loading interactive visualization…

Plots

Scalar metrics

tension (LambdaCDM)3 sigma

tension (SVT quintom-B)1.18 sigma

stdout tail

==================== VALIDATION ====================
  LCDM 95% UL / FC UL    : 0.064 / 0.053 eV
  w0waCDM (SVT) 95% UL   : 0.163 eV
  NO floor / IO floor    : 0.059 / 0.100 eV
  implied mu_eff         : -0.100 eV   (negative = unphysical pull)
  tension (LambdaCDM)    : 3.00 sigma
  tension (SVT quintom-B): 1.18 sigma
  SVT allowed window     : [0.059, 0.163] eV (non-empty: True)
  LCDM window empty      : True
  SVT predicts NO (sim21): True  (DESI Bayes 10 for NO)
  LCDM in tension >=2sig : PASS
  SVT resolves (<2sigma) : PASS
  Overall                : PASS

  SVT Prediction: Quintom-B dark energy relaxes the DESI neutrino-mass tension; normal ordering
  Matches data:   YES - Validated
====================================================