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

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http://dx.doi.org/10.1063/1.2973509
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Publication Date
2008
Authors
Garcia Martin, R.
Kamiński, Robert
Ynduráin, F. J.
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Amer Inst Physics
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Abstract
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.
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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.
UCM subjects
Física del estado sólido , Física matemática
Unesco subjects
2211 Física del Estado Sólido
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https://hdl.handle.net/20.500.14352/53481
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