https://doi.org/10.1140/epja/s10050-020-00202-z
Regular Article -Theoretical Physics
Anomalous internal pair creation
Institute of Physics, Budapest University of Technology and Economics, Budafoki út 8. F., Budapest, 1521, Hungary
* e-mail: khelyi@phy.bme.hu
Received:
26
May
2020
Accepted:
16
July
2020
Published online:
17
August
2020
In recent electron-positron angular correlation measurements the observed significant enhancements relative to the internal pair creation at large angles was interpreted as indication of the creation of 
boson called X17 particle. In this paper it is brought up that such enhancements can be generated by higher order processes. It is found that nuclear transitions, the transition energy of which is significantly lower than the whole transition energy, can cause peaked angle dependence in electron-positron angular correlation.
© The Author(s), 2020
