Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of strange baryon-antibaryon interactions with femtoscopic
  correlations   Two-particle correlation functions were measured for $\rm p\overline{p}$,
$\rm p\overline{\Lambda}$, $\rm \overline{p}\Lambda$, and
$\Lambda\overline{\Lambda}$ pairs in Pb-Pb collisions at $\sqrt{s_{\rm
NN}}=2.76$ TeV and $\sqrt{s_{\rm NN}}=5.02$ TeV recorded by the ALICE detector.
From a simultaneous fit to all obtained correlation functions, real and
imaginary components of the scattering lengths, as well as the effective
ranges, were extracted for combined $\rm p\overline{\Lambda}$ and $\rm
\overline{p}\Lambda$ pairs and, for the first time, for
$\Lambda\overline{\Lambda}$ pairs. Effective averaged scattering parameters for
heavier baryon-antibaryon pairs, not measured directly, are also provided. The
results reveal similarly strong interaction between measured baryon-antibaryon
pairs, suggesting that they all annihilate in the same manner at the same pair
relative momentum $k^{*}$. Moreover, the reported significant non-zero
imaginary part and negative real part of the scattering length provide
motivation for future baryon-antibaryon bound state searches.

13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int