Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Regge pole description of scattering of gravitational waves by a
  Schwarzschild black hole   We revisit the problem of plane monochromatic gravitational waves impinging
upon a Schwarzschild black hole using complex angular momentum techniques. By
extending our previous study concerning scalar and electromagnetic waves [A.
Folacci and M. Ould El Hadj, Phys.\, Rev.\, D {\bf 99}, 104079, (2019),
arXiv:1901.03965], we provide complex angular momentum representations and
Regge pole approximations of the helicity-preserving and helicity-reversing
scattering amplitudes and of the total differential scattering cross section.
We show, in particular, that for high frequencies (i.e., in the
short-wavelength regime), a small number of Regge poles permits us to describe
numerically with very good agreement the black hole glory and the orbiting
oscillations and we then provide a semiclassical approximation that unifies
these two phenomena.

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The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
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The categories of this paper are: q-fin
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
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The categories of this paper are: eess
23
The categories of this paper are: solv-int