Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Schwinger-based QCD formulation's derivation of elastic pp scattering   Using previously described functional techniques for some non-perturbative,
gauge invariant, renormalized QCD processes, a simplified version of the
amplitudes - in which forms akin to Pomerons naturally appear - provides fits
to ISR and LHC-TOTEM pp elastic scattering data. Those amplitudes rely on a
specific function $\phi(b)$ which describes the fluctuations of the transverse
position of quarks inside hadrons.

29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga