Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Search for the electric dipole excitations to the $3s_{1/2} \otimes
  [2^{+}_{1} \otimes 3^{-}_{1}]$ multiplet in $^{117}$Sn   The odd-mass $^{117}$Sn nucleus was investigated in nuclear resonance
fluorescence experiments up to an endpoint energy of the incident photon
spectrum of 4.1 MeV at the bremsstrahlung facility of the Stuttgart University.
More than 50 mainly hitherto unknown levels were found. From the measurement of
the scattering cross sections model independent absolute electric dipole
excitation strengths were extracted. The measured angular distributions
suggested the spins of 11 excited levels. Quasi-particle phonon model
calculations including a complete configuration space were performed for the
first time for a heavy odd-mass spherical nucleus. These calculations give a
clear insight in the fragmentation and distribution of the $E1$, $M1$, and $E2$
excitation strength in the low energy region. It is proven that the $1^{-}$
component of the two-phonon $[2^{+}_{1} \otimes 3^{-}_{1}]$ quintuplet built on
top of the $1/2^{+}$ ground state is strongly fragmented. The theoretical
calculations are consistent with the experimental data.

0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas