f[sub 0](600) and f[sub 0](980) pole positions from a dispersive ππ scattering data analysis | Zendy

J. Ruiz de Elvira | Zendy; Roland Martin | Zendy; R. Kamiński | Zendy; J. R. Peláez | Zendy

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f[sub 0](600) and f[sub 0](980) pole positions from a dispersive ππ scattering data analysis

Author(s) -

J. Ruiz de Elvira,

Roland Martin,

R. Kamiński,

J. R. Peláez

Publication year - 2011

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.3575010

Subject(s) - consistency (knowledge bases) , physics , dispersion relation , scattering , dispersion (optics) , computational physics , quantum electrodynamics , mathematical analysis , optics , mathematics , discrete mathematics

We show how the new precise data on kaon decays together with forward dispersion relations, sum rules and once- and twice-subtracted Roy equations allow for a precise analysis of π π scattering. The once subtracted Roy equations provide a more stringent consistency check for the parametrizations of the S0- wave data in the region from 450 to 1100 MeV that allows us to present a preliminary determination of the f_0(600) and f_0(980) poles from the constrained dispersive data analysis

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