
%0 Journal Article
%A Kondo, Y. 
%A Morimatsu, O. 
%A Nishino, Y. 
%T Hadron-Nucleon Scattering Lengths from QCD Sum Rules
%J Australian Journal of Physics
%D 1997/01/24
%V 50
%N 1
%P 221-232
%K 
%R https://doi.org/10.1071/P96039
%U https://www.publish.csiro.au/paper/P96039 
%X Hadron&#8211;nucleon scattering lengths are studied by the QCD sum rule. First we explain our motivation and present the formulation for calculating hadron-nucleon scattering lengths by the QCD sum rule, where the relation between the hadron mass in the nuclear medium and the hadron&#8211;nucleon scattering length is also clarified. Secondly we discuss two applications, the pion&#8211;nucleon scattering lengths and the nucleon-nucleon scattering lengths. In the case of the pion&#8211;nucleon scattering length we show that the results of the QCD sum rule are consistent with the low-energy theorem. In the case of the nucleon&#8211;nucleon scattering lengths we show that the results of the QCD sum rule are in qualitative agreement with experiment. 
