Erlangen 2026 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 79: Searches/BSM IV
T 79.2: Vortrag
Donnerstag, 19. März 2026, 16:30–16:45, KH 02.018
Constraining a Beyond Standard Model Theory with Neutrino Public Data — •Sofia Lonardi1,2 and Philipp Eller2 — 1Arnold Sommerfeld Center, Ludwig-Maximilians-Universität (LMU), Theresienstraße 37, 80333 Munich, Germany — 2Technical University Munich (TUM), James-Franck-Strasse 1, 85748 Garching, Germany
Neutrino experiments provide a powerful window into physics beyond the Standard Model. While oscillation measurements precisely determine mixing angles and mass splitting parameters, non-oscillation experiments constrain absolute neutrino masses, together offering complementary probes of new physics.
This work relies on a global analysis framework that combines publicly available data from leading experiments: Daya Bay, MINOS, KamLAND, KATRIN, GERDA, and JUNO. These data are used to test the "Nnaturalness" theory, a Beyond Standard Model theory that simultaneously addresses neutrino mass generation and the electroweak hierarchy problem through multiple copies of the Standard Model in hidden sectors with varying Higgs masses.
By fitting the data with this model across different neutrino mass orderings and Majorana or Dirac scenarios, we establish lower bounds on the number of hidden sectors and on the theory's fine-tuning parameter, effectively constraining the parameter space and excluding a class of theory realisations.
Keywords: Beyond Standard Model; Neutrino public data; Joint fit; Parameters constraints