REGGE BEHAVIOUR FOR THE SCATTERING UNDER A POTENTIAL WITH A SINGULARITY AT ORIGIN HIGHER THAN z~(-2)
位势在原点有高于二阶的极点时散射振幅的Regge行为

当位势V(z)在原点有高于二阶的极点时(在右半平面V(z)解析,当z→∞时z2V→0),证明了(1)S矩阵元为λ(λ=ι+1/2,ι是角动量)的半纯函数;(2)当λ在右半平面|argλ|<π/2内趋于无穷大时,|S-1|≤C((log|λ|)/|λ|)。