Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inelastic p9Be scattering and halo-structure of excited states of 9Be   The calculation of the differential cross section of the inelastic p9Be
scattering (to the levels J = 1/2, 3/2) was made in the framework of the
Glauber diffraction theory. We used the wave function of 9Be in the ground and
excited states in the three-body 2alpha-n model. Expansion in series by
gaussoids of the wave function of 9Be and presentation of the Glauber operator
in the form, conjugated with three-body wave function, allow us to calculate
analytically the matrix elements of inelastic scattering, taking into account
all of the multiplicities of scattering and rescattering on clusters and
nucleon, that are the components of 9Be. The drawn up profiles of excited state
functions allow us to make conclusion on their extended neutron distributions.
The differential cross section with the wave function in model 1 (with the
alpha-alpha-Ali-Bodmer potential) is in a good agreement with available
experimental data at E = 180 MeV.

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The categories of this paper are: gr-qc
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The categories of this paper are: econ
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The categories of this paper are: hep-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: eess
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The categories of this paper are: physics
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The categories of this paper are: cmp-lg
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The categories of this paper are: solv-int
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The categories of this paper are: alg-geom
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The categories of this paper are: acc-phys
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The categories of this paper are: atom-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: nlin
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The categories of this paper are: ao-sci
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The categories of this paper are: bayes-an
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The categories of this paper are: q-bio