50 citations · 78 across the 14 of their papers we have counts for
20 papers · 1 filter
New physics in multi-lepton tau decays
Yohei Ema, Patrick J. Fox, Matheus Hostert +4
Dark particles with lepton-flavor-violating couplings to the tau lepton can induce rare neutrinoless decays with large final state multiplicities. We study models where transit…
Kaon decay constraints on vector bosons coupled to non-conserved currents
Matheus Hostert, Maxim Pospelov, Adrian Thompson
We study rare three- and four-body kaon decays as a probe of light vector and axial-vector bosons coupled to non-conserved currents. We find that searches for $K_L \to π^0 π^0 (X\t…
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…
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…
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…
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…