Dataset referencing 1986KE20
Yad.Fiz. 44, 842 (1986); Sov.J.Nucl.Phys. 44, 542 (1986)
R.Ya.Kezerashvili
Does a Tetraneutron Exist ( Question )
NUCLEAR REACTIONS 4He(π-, π+), E at 165 MeV/c; calculated σ(Eπ+, θπ+); deduced no evidence for tetraneutron.