Investigations of positronium formation and destruction using 3gamma/2gammaannihilation-ratio measurements.
Kauppila
W E
WE
Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48202, USA.
Miller
E G
EG
Mohamed
H F M
HF
Pipinos
K
K
Stein
T S
TS
Surdutovich
E
E