Checking the ${}^8$Be anomaly with a two-arm electron positron pair spectrometer

Tran The Anh, Tran Dinh Trong, Attila J. Krasznahorkay +9

We have repeated the experiment performed recently by Krasznahorkay et al., (Phys. Rev. Lett. 116, 042501 (2016)), which may indicate a new particle called X17 in the literature. I…