289 citations · 2k across the 89 of their papers we have counts for
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A panorama of new-physics explanations to the MiniBooNE excess
Asli M. Abdullahi, Jaime Hoefken Zink, Matheus Hostert +2
The MiniBooNE low-energy excess stands as an unexplained anomaly in short-baseline neutrino oscillation experiments. It has been shown that it can be explained in the context of da…
New physics in multi-electron muon decays
Matheus Hostert, Tony Menzo, Maxim Pospelov +1
We study the exotic muon decays with five charged tracks in the final state. First, we investigate the Standard Model rate for ( a…
Pion decay constraints on exotic 17 MeV vector bosons
Matheus Hostert, Maxim Pospelov
We derive constraints on the couplings of light vector particles to all first-generation Standard Model fermions using leptonic decays of the charged pion, . In…
Feebly Interacting Particles: FIPs 2022 workshop report
C. Antel, M. Battaglieri, J. Beacham +75
Particle physics today faces the challenge of explaining the mystery of dark matter, the origin of matter over anti-matter in the Universe, the origin of the neutrino masses, the a…
Effective portals to heavy neutral leptons
Enrique Fernández-Martínez, Manuel González-López, Josu Hernández-García +2
The existence of right-handed neutrinos, or heavy neutral leptons (HNLs), is strongly motivated by the observation of neutrino masses and mixing. The mass of these new particles co…
Constraining Light Thermal Inelastic Dark Matter with NA64
Martina Mongillo, Asli Abdullahi, Benjamin Banto Oberhauser +5
A vector portal between the Standard Model and the dark sector is a predictive and compelling framework for thermal dark matter. Through co-annihilations, models of inelastic dark…
Semi-Visible Dark Photon Phenomenology at the GeV Scale
Asli M. Abdullahi, Matheus Hostert, Daniele Massaro +1
In rich dark sector models, dark photons heavier than tens of MeV can behave as semi-visible particles: their decays contain both visible and invisible final states. We present mod…