On determinations of the pion3He3H coupling constant

Various determinations in the current literature of the π3He3H coupling constant are reexamined, and the ones leading to very low values are shown either to be erroneous or not decisive and implausible. A dispersion relation and the impulse approximation which use the same kind of approximations both lead to Gπ−3He−3H(−m2π) ≈ −1.7, in absolute value higher than the elementary nucleon value gπpn(−m2π)=1.41