Papers · Preprint
Six Birds for Neutrino Mass: Lens-Swap Stability and Packaging Audits
A neutrino mass bound that moves when you swap one dataset.
In plain words
Replace one release of a cosmic microwave background likelihood with another, keep everything else fixed, and the upper bound on the summed neutrino mass tightens. By how much depends on which baseline you start from.
The paper treats this as a packaging stability problem. It runs directional cross lens audits, localizes the shift by spectrum and multipole, and adds a common staging control.
The message is about method. When a bound moves under a lens swap, report the bound together with the swap audits. That turns a vague tension into a diagnosable disagreement.
What it shows
- The bound shift measured in two baselines under DESI DR2 BAO.
- Localization of the shift to specific spectra and scales.
- An audit first, reproducible diagnosis.
What it does not claim
No root cause for the pipeline difference and no definitive neutrino mass.
Cite
Tsiokos, I. (2026). Six Birds for Neutrino Mass: Lens-Swap Stability and Packaging Audits. Research Square. https://www.researchsquare.com/article/rs-9009357/v1