Checking the $^8$Be anomaly with a two-arm electron positron pair spectrometer
Nuclear Experiment
2024-04-03 v2 Instrumentation and Detectors
Abstract
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. In order to get a reliable, and independent result, we used a different type of electron-positron pair spectrometer which have a more simple acceptance/efficiency as a function of the correlation angle, but the other conditions of the experiment were very similar to the published ones. We could confirm the presence of the anomaly measured at the E=18.15 MeV resonance, and also confirm their absence at the E=17.6 MeV resonance, and at E= 800 keV off resonance energies.
Keywords
Cite
@article{arxiv.2401.11676,
title = {Checking the $^8$Be anomaly with a two-arm electron positron pair spectrometer},
author = {Tran The Anh and Tran Dinh Trong and Attila J. Krasznahorkay and Attila Krasznahorkay and József Molnár and Zoltán Pintye and Nguyen Ai Viet and Nguyen The Nghia and Do Thi Khanh Linh and Bui Thi Hoa and Le Xuan Chung and Nguyen Tuan Anh},
journal= {arXiv preprint arXiv:2401.11676},
year = {2024}
}
Comments
Invited talk at the 52nd ISMD, Gy\"ongy\"os, Hungary, August 2023