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.

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.

Included in

Physics Commons

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