Title

Simple Description of Pion-Pion Scattering to 1 GeV

Author(s)/Creator(s)

Joseph Schechter, Department of Physics, Syracuse University, Syracuse, NYFollow
Masayasu Harada, Syracuse University
Francesco Sannino, Dipartimento di Scienze Fisiche, Mostra d’Oltremare Pad.19Follow

Document Type

Article

Date

11-16-1995

Language

English

Disciplines

Physics

Description/Abstract

Motivated by the 1/Nc expansion, we present a simple model of pion-pion scattering as a sum of a `current-algebra' contact term and resonant pole exchanges. The model preserves crossing symmetry as well as unitarity up to 1.2 GeV. Key features include chiral dynamics, vector meson dominance, a broad low energy scalar (sigma) meson and a `Ramsauer-Townsend' mechanism for the understanding of the 980 MeV region. We discuss in detail the `regularization' (corresponding to rescattering effects) necessary to make all these nice features work.

Additional Information

35 pages (LaTeX), 13 PostScript figures are included as uuencoded-compressed-tar More information available at http://arxiv.org/abs/hep-ph/9511335

Recommended Citation

Schechter, Joseph; Harada, Masayasu; and Sannino, Francesco, "Simple Description of Pion-Pion Scattering to 1 GeV" (1995). Physics - All Scholarship. 308.
https://surface.syr.edu/phy/308

Source

Harvested from Arxiv.org

Creative Commons License

This work is licensed under a Creative Commons Attribution 3.0 License.