17 papers
Search for heavy neutral leptons in decays to positrons
NA62 Collaboration
A search for heavy neutral lepton () production in in-flight decays using data collected by the NA62 experiment at CERN in 2017-2024 is reported. Upper limits fo…
Investigation of Radiation Emitted by Sub GeV Electrons in Oriented Scintillator Crystals
L. Bandiera, R. Camattari, N. Canale +12
The research investigates coherent interactions between sub-GeV electrons and oriented scintillator crystals, leading to enhanced electromagnetic (EM) radiation. Experiments at Mai…
Observation of Fine Structure in Channeling of Particles in Bent Crystals
A. Mazzolari, H. Backe, L. Bandiera +14
We observed highly efficient manipulation of the 530 MeV positron beam at Mainz Microtron via bent crystals. The low beam divergence revealed a fine structure in the angular distri…
Beam Steering and Radiation Generation of Electrons in Bent Crystals in the Sub-GeV Domain
R. Negrello, M. Romagnoni, A. Sytov +15
We present an investigation into beam steering and radiation emission by sub-GeV electrons traversing bent silicon crystals. Using 855, 600, and 300~MeV electron beams at the Mainz…
Strong Enhancement of Electromagnetic Shower Development in Oriented Scintillating Crystals and Implications for Particle Detectors
Mattia Soldani, Pietro Monti-Guarnieri, Alessia Selmi +31
A particle traversing a crystal aligned with one of its crystallographic axes experiences a strong electromagnetic field that is constant along the direction of motion over macrosc…
Searches for hidden sectors using decays
NA62 Collaboration
Results from the study of the rare decays , and at the NA62 experiment at CERN are interpreted…