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Peláez Sagredo, José Ramón (2007) Dispersive chiral approach to meson-meson dynamics: Spectroscopy results for light scalars and precision studies. In Quark Confinement and the Hadron Spectrum VII. AIP Conference Proceedings (892). Amer Inst Physics, pp. 72-78. ISBN 978-0-7354-0396-3
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Official URL: http://dx.doi.org/10.1063/1.2714349
Abstract
Dispersive approaches provide model independent description of meson-meson scattering. We first review here the use of dispersion relations to obtain a model independent unitarization of Chiral Perturbation Theory amplitudes, that establish the existence of light scalar mesons and whose leading 1/N_c behavior suggest they ahve a non q q̅ dominant component. We also review the forward dispersion relation checks on conflicting experimental data and the resulting very precise pi pi scattering scattering amplitudes.
| Item Type: | Book Section |
|---|---|
| Additional Information: | ISSN: 0094-243X |
| Uncontrolled Keywords: | Perturbation-theory; π π; Scattering; States |
| Subjects: | Sciences > Physics > Physics-Mathematical models Sciences > Physics > Mathematical physics |
| ID Code: | 35327 |
| Deposited On: | 27 Jan 2016 19:51 |
| Last Modified: | 10 Dec 2018 15:09 |
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