Direct search for orthopositronium decay into two photons
Phys Rev Lett
.
1991 Mar 11;66(10):1298-1301.
doi: 10.1103/PhysRevLett.66.1298.
Authors
S Asai
,
S Orito
,
T Sanuki
,
M Yasuda
,
T Yokoi
PMID:
10043170
DOI:
10.1103/PhysRevLett.66.1298
No abstract available