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Precise analysis of π π scattering data from Roy equations and forward dispersion relations



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Peláez Sagredo, José Ramón and Garcia Martin, R. and Kamiński, Robert and Ynduráin, F. J. (2008) Precise analysis of π π scattering data from Roy equations and forward dispersion relations. In Scadron70: Workshop on Scalar Mesons and Related Topics: honoring Michael D. Scadron's 70th birthday. AIP Conference Proceedings (1030). Amer Inst Physics. ISBN 978-0-7354-0899-9

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Official URL: http://dx.doi.org/10.1063/1.2973509


We review our recent analysis of ππ scattering data in terms of Roy equations and Forward Dispersion Relations, and present some preliminary results in terms of a new set of oncesubtracted coupled equations for partial waves. The first analysis consists of independent fits to the different ππ channels that satisfies rather well the dispersive representation. In the second analysis we constrain the fit with the dispersion relations. The latter provides a very precise and model independent description of data using just analyticity, causality and crossing.

Item Type:Book Section
Additional Information:

ISSN: 0094-243X
©2008 American Institute of Physics.
Workshop on Scalar Mesons and Related Topics (2008. Lisboa, Portugal).
J.R.P. thanks the organizers for creating such a stimulating conference.

Uncontrolled Keywords:Phase-shifts
Subjects:Sciences > Physics > Solid state physics
Sciences > Physics > Mathematical physics
ID Code:35282
Deposited On:27 Jan 2016 16:07
Last Modified:10 Dec 2018 15:09

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