Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Decomposition of scattering phase shifts and reaction cross sections
  using the complex scaling method   We apply the complex scaling method to the calculation of scattering phase
shifts and extract the contributions of resonances in a phase shift and a cross
section. The decomposition of the phase shift is shown to be useful to
understand the roles of resonant and non-resonant continuum states. As
examples, we apply this method to several two-body systems: (i) a schematic
model with the Gyarmati potential which produces many resonances, (ii) the
alpha-alpha system which has a Coulomb barrier potential in addition to an
attractive nuclear interaction, and (iii) the alpha-n system which has no
barrier potential. Using different kinds of potentials, we discuss the
reliability of this method to investigate the resonance structure in the phase
shifts and cross sections.

16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio