Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Elastic Compton scattering from the deuteron and nucleon
  polarizabilities   Cross sections for elastic Compton scattering from the deuteron were measured
over the laboratory angles 35-150 deg. Tagged photons in the laboratory energy
range 84-105 MeV were scattered from liquid deuterium and detected in the
large-volume Boston University NaI (BUNI) spectrometer. Using the calculations
of Levchuk and L'vov, along with the measured differential cross sections, the
isospin-averaged nucleon polarizabilities in the deuteron were estimated. A
best-fit value of (alpha-beta) = 2.6+/-1.8 was determined, constrained by
dispersion sum rules. This is markedly different from the accepted value for
the proton of (alpha-beta) = 10.0+/-1.5+/-0.9.

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The categories of this paper are: cs
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
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The categories of this paper are: chao-dyn
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The categories of this paper are: quant-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-th
16
The categories of this paper are: stat
18
The categories of this paper are: econ
3
The categories of this paper are: physics