Abstract
The ππ S-wave scattering-length predictions of Weinberg have been tested by using dispersion sum rules for the infinite-energy cross section. Reasonable agreement is obtained with the infinite-energy cross section (≈15 mb) estimated from the factorization theorem for the Pomeranchon Regge residues. Experimental phase-shift data of Gutay et al., Walker et al., and Baton et al. are used in estimating the dispersion integrals. The analysis seems to rule out an I = 0 S-wave scattering length ⪞0.4μ-1.
Recommended Citation
D. J. George et al., "Modified Dispersion Relations and π π Scattering," Physical Review, vol. 172, no. 5, pp. 1740 - 1742, American Physical Society (APS), Aug 1968.
The definitive version is available at https://doi.org/10.1103/PhysRev.172.1740
Department(s)
Physics
International Standard Serial Number (ISSN)
0031-899X
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 1968 American Physical Society (APS), All rights reserved.
Publication Date
01 Aug 1968
