21 October 2026

• Low Primordial Helium as a Probe of Non-Unitary Neutrino MixingShu-Yuan Guo, Jia-Qi Li · first submitted 21 Oct 2026hep-ph
• Heavy Pseudo-Dirac Doublet Dark Matter and Non-Thermal Leptogenesis in Light of the LZ EventMasahiro Ibe, Jun Miyamoto · first submitted 21 Oct 2026hep-ph
• Searches for coincident Gravitational Waves and High-Energy Neutrinos from the KM3NeT and ANTARES telescopes during O3ANTARES Collaboration, KM3NeT Collaboration, O. Adriani et al. · first submitted 21 Oct 2026astro-ph.HE
• Cosmic Ray Observations using Coincident Scintillator and Radio Signals with the Beamforming Elevated Array for COsmic Neutrinos (BEACON)Zachary Martin, Jackson Hinkel, Kira Perna et al. · first submitted 21 Oct 2026astro-ph.IMastro-ph.HE
• Neutrino Transition PolarizabilityMatteo Borrello, Michele Tammaro · first submitted 21 Oct 2026hep-phhep-exhep-th
• Machine Learning Neutrino-Nucleus Cross Sections II: More LeptonsDaniel C. Hackett, Joshua Isaacson, Shirley Weishi Li et al. · first submitted 21 Oct 2026hep-phhep-exnucl-th
• Localized Neutrinos in Two Dark DimensionsWaqas Ahmed, George K. Leontaris · first submitted 21 Oct 2026hep-phhep-th

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