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REMARK ON PION SCATTERING LENGTHS
Deirdre Black
,
Amir H Fariborz
,
Renata Jora
,
Nae Woong Park
,
Joseph Schechter
,
M Naeem Shahid
Jan 13, 2010
First it is shown that the tree amplitude for pion–pion scattering in the minimal linear sigma model has an exact expression which is proportional to a geometric series in the quantity [Formula: see text], where...
Linear Sigma model
pion-pion scattering lengths
chiral perturbation theory
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