Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Study for a model-independent pole determination of overlapping
  resonances   We apply a model-independent reconstruction method to experimental data in
order to identify complex poles of overlapping resonances. The algorithm is
based on the Schlessinger Point Method where data points are interpolated using
a continued-fraction expression. Statistical uncertainties of the experimental
data are propagated with resampling. In order to demonstrate the feasibility of
this method, we apply it to the $J/\psi \to \gamma \pi^0\pi^0$ decay. We
benchmark the method on known analytic models, which allows us to estimate the
deviation from the true value. We then perform the pole extraction from BESIII
data, and identify the $f_0(1500)$, $f_0(1710)$, and $f_0(2020)$ scalar states.
Our results are in reasonable agreement with recent results, which suggests the
proposed method as a promising model-independent alternative for the
determination of resonance poles solely based on available experimental data.

30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph