Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Impact-parameter analysis of the new TOTEM pp data at 13 TeV: black disk
  limit excess   We revisit a discussion on the impact-parameter dependence of proton-proton
elastic scattering amplitude with improved uncertainty calculation. This
analysis allows to reveal the asymptotic properties of hadron interactions. New
data indicates that the impact-parameter elastic scattering amplitude is
slightly above the black disk limit at 13~TeV c.m.s. energy of the LHC reaching
a value of $\mathrm{Im}\,H(s,0) = 0.512\pm 0.001\ \text{(sys+stat)} \pm 0.004\
\text{(norm)}$ confirming that black disk limit is violated at current
collision energy, however it was not exceeded at 7~TeV. The growth trend of the
impact-parameter amplitude imaginary part, extrapolated from previous and new
data, indicates that it is unlikely that the amplitude is close to saturation.
New analysis is consistent with smooth energy evolution of the elastic
scattering amplitude and supersedes the earlier conclusion on the black disk
limit excess observed at 7~TeV.

37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys