Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nucleon-Nucleon and Nucleon-Nucleus Optical Models for Energies to 3 GeV
  and the Question of NN Hadronization   Within the key issues of hadronic physics one of the interesting issues in
nuclear physics is whether there is a transition region between meson-nucleon
and quark-gluon degrees of freedom in the NN interaction. This question is
relevant for pairs of free nucleons as well as for nucleon pairs immersed in
nuclear matter. From NN phase shifts we deduce a dibaryonic scale of 1 GeV for
the soft core NN potential strengths at nucleon separation r equal 0.25 to 0.5
fm. A short range intermediate transition, with fusion and fission of the two
scattered nucleons into a dibaryon with prevailing quark-gluon dynamics, is
conjectured from NN optical models for T-lab greater 1.5 GeV. From efforts and
progress of nucleon-nucleus scattering analysis in the GeV region some results
are presented. This is our first step for an in-medium search for transitions
from the meson-nucleon into the quark-gluon sector using NA optical models.

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The categories of this paper are: acc-phys
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-ex
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The categories of this paper are: cond-mat
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-ex
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The categories of this paper are: cmp-lg
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The categories of this paper are: econ
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The categories of this paper are: adap-org
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The categories of this paper are: math-ph
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The categories of this paper are: math
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The categories of this paper are: hep-ph
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The categories of this paper are: supr-con
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The categories of this paper are: gr-qc
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The categories of this paper are: q-fin
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The categories of this paper are: q-alg