Abstract
The E1 e + e − decay of the 17.2 MeV level in 12C, and the M1 e + e − decay of the 17.6 MeV level in 8Be have been studied in a search for possible signals of short-lived neutral bosons with masses between 5 and 15 MeV/c 2. Whereas for the E1 decay at large correlation angles no deviation is found from internal pair conversion (IPC), surprisingly the M1 angular correlation deviates from IPC at the 4.5σ level.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
