5 papers
Energy, time, and position resolution measurements of an array of large tapered LYSO crystals
O. Beesley, J. Carlton, D. Ding +19
We report on the performance of six custom-made tapered LYSO crystals of unprecedented volume, which constitute a sector of the 19 radiation length electromagnetic calorimeter plan…
Exploring Invisible New Physics with Exotic Pion Decays
Wolfgang Altmannshofer, Jeff A. Dror, Pierce Giffin +5
We study the sensitivity of past and future stopped-pion experiments to light, invisible dark sector particles produced in exotic pion decays. We consider two-body decays involving…
European Strategy for Particle Physics Update -- PIONEER: a next generation rare pion decay experiment
PIONEER Collaboration, A. Adelmann, W. Altmannshofer +76
PIONEER is a rapidly developing effort aimed to perform a pristine test of lepton flavour universality (LFU) and of the unitarity of the first row of the CKM matrix by significantl…
Measurements of a LYSO crystal array from threshold to 100 MeV
O. Beesley, J. Carlton, B. Davis-Purcell +16
We report measurements of ten custom-made high-homogeneity LYSO crystals. The investigation is motivated by the need for a compact, high-resolution, and fast electromagnetic calori…
Search for the X17 particle in processes with the MEG II detector
The MEG II collaboration, K. Afanaciev, A. M. Baldini +64
The observation of a resonance structure in the opening angle of the electron-positron pairs in the Li(p,\ee) Be reaction was claimed and interpreted as the production…