Speaker
Prof.
Aleksandrs Aleksejevs
(Memorial University of Newfoundland)
Description
Do we really need a hypothetical gauge boson, "X17", to explain the famous ATOMKI measurements? Or can there be some interplay between the theoretical and experimental effects? We show that the bump in the $^8Be(18.15)\rightarrow ^8Be +e^++e^-$ decay data can be reproduced within the Standard Model by adding the full set of second-order corrections and the interference terms to the Born-level decay amplitudes, and demonstrate how experimental selection and acceptance bias exacerbate the apparent difference between the experimental data and the Born-level prediction.
Authors
Prof.
Aleksandrs Aleksejevs
(Memorial University of Newfoundland)
Svetlana Barkanova
(Grenfell Campus of Memorial University)
Yury G Kolomensky
(University of California, Berkeley)
Benjamin Sheff
(University of Michigan)
