Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: In-medium Properties of Hadrons - an Overview   An overview is given over recent results on in-medium properties of hadrons,
obtained in experiments with photon, proton and deuteron beams at ANKE,
CBELSA/TAPS, Crystal Ball, HADES, and BigRIPS. These experiments focus on
identifying spectral in-medium modifications of hadrons, frequently discussed
in the context of a partial restoration of chiral symmetry at finite nuclear
densities. Three experimental approaches are presented: the measurement of the
transparency ratio, the meson line shape analysis, and the search for
meson-nucleus bound states. Results for $\omega,\phi, $ and $ \eta^\prime$
mesons indicate a broadening in the nuclear medium. Corresponding inelastic
in-medium meson-nucleon cross sections have been extracted. Evidence for an
in-medium mass shift has not been reported. Further information on the
meson-nucleus interaction is derived from a spectroscopy of meson-nucleus bound
states. A critical comparison of the results with theoretical predictions is
presented.

14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org