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Sum rules for the determination of s- and p-wave pion-pion scattering lengths

Authors
Journal
Nuclear Physics
0029-5582
Publisher
Elsevier
Publication Date
Volume
87
Issue
5
Identifiers
DOI: 10.1016/0029-5582(66)90307-5

Abstract

Abstract Sum rules for the determination of s- and p-wave ππ scattering lengths are obtained from the dispersion relations for forward scattering. The calculated values of scattering lengths are a 0=−1.3±0.6; a 2=0.38±0.2 and a 1 1=0.037±0.004. The importance of Adler's ππ sum rule for obtaining the information on the a 0 scattering length is briefly discussed.

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