In a measurement of the angular correlation of e+e- pairs in the isovector M1 decay from 1+ level at 17.64 MeV in 8Be, a large deviation was found from quantum electrodynamics(QED)- prediction for internal pair conversion (IPC). By postulating the emission of a neutral particle with a mass of 12 (2.5) MeV/c2 the structure of the angular correlation can be described.
|Number of pages||5|
|Journal||Acta Physica Polonica B|
|Publication status||Published - Feb 1 2008|
|Event||30th Mazurian Lakes Conference on Physics - Nuclear Physics and the Fundamental Processes - Piaski, Poland|
Duration: Sep 2 2007 → Sep 9 2007
ASJC Scopus subject areas
- Physics and Astronomy(all)