Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Consistency checks of pion-pion scattering data and chiral dispersive
  calculations   We have evaluated forward dispersion relations for scattering amplitudes that
follow from direct fits to several sets of pion-pion scattering experiments,
together with the precise K decay results, and high to energy data. We find
that some of the most commonly used experimental sets, as well as some recent
theoretical analyses based on Roy equations, do not satisfy these constraints
by several standard deviations. Finally, we provide a consistent pion-pion
amplitude by improving a global fit to data with these dispersion relations.

35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph