Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interpretation of transverse tune spectra in a heavy-ion synchrotron at
  high intensities   Two different tune measurement systems have been installed in the GSI
heavy-ion synchrotron SIS-18. Tune spectra are obtained with high accuracy
using these fast and sensitive systems. Besides the machine tune, the spectra
contain information about the intensity dependent coherent tune shift and the
incoherent space charge tune shift. The space charge tune shift is derived from
a fit of the observed shifted positions of the synchrotron satellites to an
analytic expression for the head-tail eigenmodes with space charge.
Furthermore, the chromaticity is extracted from the measured head-tail mode
structure. The results of the measurements provide experimental evidence of the
importance of space charge effects and head-tail modes for the interpretation
of transverse beam signals at high intensity.

29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph