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Observation of collider neutrinos without final state muons with the SND@LHC experiment
LHC Collaboration
We report the observation of neutrino interactions without final state muons at the LHC, with a significance of 6.4. A data set of proton-proton collisions at …
Tree-level unitarity constraints on heavy neutral leptons
Kevin A. Urquía-Calderón, Inar Timiryasov, Oleg Ruchayskiy
Heavy neutral leptons (HNLs) can explain the origin of neutrino masses and oscillations over a wide range of masses. Direct experimental probes of HNLs become unfeasible for masses…
Constraints on the parameters of the neutrino extension of the Standard Model
Volodymyr Gorkavenko, Oleksandr Khasai, Oleg Ruchayskiy +1
Heavy neutral leptons (HNLs) are hypothetical particles proposed as a potential explanation for neutrino oscillations and the generation of the baryon asymmetry in the Universe. Th…
Reconstruction of 400 GeV/c proton interactions with the SHiP-charm project
SHiP Collaboration
The SHiP-charm project was proposed to measure the associated charm production induced by 400 GeV/c protons in a thick target, including the contribution from cascade production. A…
High-energy neutrino signals from supernova explosions: a new window into dark photon parameter space
Vsevolod Syvolap, Oleg Ruchayskiy
Dark photons, hypothetical feebly interacting massive vector bosons, appear in many extensions of the Standard Model. This study investigates their production and subsequent decay…