Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Eikonal zeros in the momentum transfer space from proton-proton
  scattering: An empirical analysis   By means of improved empirical fits to the differential cross section data on
$pp$ elastic scattering at $19.4 \le\sqrt{s}\le 62.5$ GeV and making use of a
semi-analytical method, we determine the eikonal in the momentum transfer space
(the inverse scattering problem). This method allows the propagation of the
uncertainties from the fit parameters up to the extracted eikonal, providing
statistical evidence that the imaginary part of the eikonal (real part of the
opacity function) presents a zero (change of signal) in the momentum space, at
$q^2 \approx 7 \pm 1$ GeV$^2$. We discuss the implication of this change of
signal in the phenomenological context, showing that eikonal models with one
zero provide good descriptions of the differential cross sections in the full
momentum transfer range, but that is not the case for models without zero.
Empirical connections between the extracted eikonal and results from a recent
global analysis on the proton electric form factor are also discussed, in
special the Wu-Yang conjecture. In addition, we present a critical review on
the $pp$ differential cross section data presently available at high energies.

11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci