Article on Testing Non standard Neutrino Properties at Arxiv

https://www.arxiv.org/abs/2501.04309

Limits on new gauge vector forces and associated mass giving scalars for Z decay

The new paper at ArXiv https://www.arxiv.org/abs/2501.04388 by Peli and Trocsanyi linit show how Higgs Bosons decay measurements can limit new Bosons. The current measurement of Z width is not yet strong enough to limit all new models.

  The SM theoretical prediction for the Higgs boson width is ΓSM
h = 4.07 MeV, with
a relative uncertainty of 4% [3]. The experimental measurements on the other hand are
ΓATLAS
h = 4.5+3.3
−2.5 MeV [17] and ΓCMS
h = 3.2+2.4
−1.7 MeV [18], display a much larger uncertainty
than the SM theoretical prediction allowing for several BSM models to remain compatible
with observations.

Nova and T2K find non unitary mixing 3 sigma - Excess Neutrinos more than expected from oscillations - Neutrino Decay or Neutrino Pair Production

In https://www.arxiv.org/pdf/2501.00146 Yu et al Analysis results from the 295 Kilometer far detector from J-PARC, T2k, and the 810 Kilometer far detector at Fermilab both with Gev Muon Neutrino, both seem to show excess electron neutrinos more than can be expect from Unitary (Preversing Particle Number) Oscillations of Neutrinos, the Nova detector show this much more strongly than T2k. Could Muon Neutinos be pair producing electron neutinos by scattering along the way, v_mu->v_mu + v_e + v-bar_e? As our axial force might do. The amount of extra electron neutrinos is 6% averaged over both experiments.