152 citations · 152 across the 5 of their papers we have counts for
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Improved limits on a new in scenarios with the NA64 experiment at CERN
The NA64 Collaboration, Yu. M. Andreev, A. Antonov +53
Extensions of the Standard Model featuring an additional gauge symmetry provide a compelling framework linking the origin of neutrino masses to possible dark matter ca…
Feasibility of Low-Energy True Muonium Photoproduction
Ivo Schulthess, Benjamin Banto Oberhauser, Paolo Crivelli
True muonium, the bound state of a muon and an antimuon, is a theoretically well-understood but experimentally unobserved exotic atom. Its purely leptonic nature makes it a sensiti…
Axion Searches at the CERN SPS: From Their Dawn to Current Prospects
Paolo Crivelli, Martina Mongillo
This mini-review traces the evolution of axion searches at the CERN Super Proton Synchrotron (SPS), beginning with the early proposal by Guido Barbiellini in 1982 and culminating i…
Hunting down the X17 boson at the CERN SPS
E. Depero, Yu. M. Andreev, D. Banerjee +53
Recently, the ATOMKI experiment has reported new evidence for the excess of events with a mass 17 MeV in the nuclear transitions of He, that they previously obs…
An Improved Limit on Invisible Decays of Positronium
A. Badertscher, P. Crivelli, W. Fetscher +6
The results of a new search for positronium decays into invisible final states are reported. Convincing detection of this decay mode would be a strong evid ence for new physics bey…