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20172026
most citedThe Present and Future Status of Heavy Neutral Leptons

181 citations · 785 across the 71 of their papers we have counts for

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Showing 2025 · hep-phShow all

7 papers · 2 filters

hep-ph2025

Long-Lived Particles from Meson and Muon Decays at Rest at Spallation Sources

Matheus Hostert, Salvador Urrea

We provide a systematic survey of spallation sources around the world and their potential to search for new light particles. We study the sensitivity of existing neutrino detectors…

hep-ph2025

Long-lived Axion-Like Particles from Tau Decays

Yohei Ema, Patrick J. Fox, Matheus Hostert +4

Axion-like particles (ALPs) are well-motivated examples of light, weakly coupled particles in theories beyond the Standard Model. In this work, we study long-lived ALPs coupled exc…

hep-ph2025

Astrophysical flux of dark particles as a solution to the KM3NeT and IceCube tension over KM3-230213A

Yasaman Farzan, Matheus Hostert

We entertain the possibility that transient astrophysical sources can produce a flux of dark particles that induce ultra-high-energy signatures at neutrino telescopes such as IceCu…

hep-ph2025★ 2 cited

From oversimplified to overlooked: the case for exploring Rich Dark Sectors

Asli Abdullahi, Francesco Costa, Andrea Giovanni De Marchi +9

The Standard Model (SM) of particle physics provides a very successful description of fundamental particles and their interactions but it is incomplete, as neutrino masses, dark ma…

hep-ph2025

Neutrino Theory in the Precision Era

Asmaa Abada, Gabriela Barenboim, Toni Bertólez-Martínez +76

This document summarises discussions on future directions in theoretical neutrino physics, which are the outcome of a neutrino theory workshop held at CERN in February 2025. The st…

hep-ph2025

Neutron portal to ultra-high-energy neutrinos

Gustavo F. S. Alves, Matheus Hostert, Maxim Pospelov

Current data on ultra-high-energy (UHE) cosmic rays suggest they are predominantly made of heavy nuclei. This indicates that the flux of neutrinos produced from proton collisions o…