Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Precise determination of the f0(600) and f0(980) pole parameters from a
  dispersive data analysis   We use our latest dispersive analysis of pion-pion scattering data and the
very recent Kl4 experimental results to obtain the mass, width and couplings of
the two lightest scalar-isoscalar resonances. These parameters are defined from
their associated poles in the complex plane. The analytic continuation to the
complex plane is made in a model independent way by means of once and twice
subtracted dispersion relations for the partial waves, without any other
theoretical assumption. We find the f0(600) pole at
(457^{+14}_{-13})-i(279^{+11}_{-7}) MeV and that of the f0(980) at
(996\pm7)-i(25^{+10}_{-6}) MeV, whereas their respective couplings to two pions
are 3.59^{+0.11}_{-0.13} GeV and 2.3\pm0.2 GeV.

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The categories of this paper are: bayes-an
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The categories of this paper are: atom-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: patt-sol
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The categories of this paper are: gr-qc
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The categories of this paper are: plasm-ph
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The categories of this paper are: stat
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The categories of this paper are: math
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The categories of this paper are: hep-th
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The categories of this paper are: hep-ex
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The categories of this paper are: cmp-lg
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The categories of this paper are: econ
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The categories of this paper are: math-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: dg-ga