Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effects of Nonlocal One-Pion-Exchange Potential in Deuteron   The off-shell aspects of the one-pion-exchange potential (OPEP) are
discussed. Relativistic Hamiltonians containing relativistic kinetic energy,
relativistic OPEP with various off-shell behaviors and Argonne $v_{18}$
short-range parameterization are used to study the deuteron properties. The
OPEP off-shell behaviors depend on whether a pseudovector or pseudoscalar
pion-nucleon coupling is used and are characterized by a parameter $\mu$. We
study potentials having $\mu$=-1, 0 and +1 and we find that they are nearly
unitarily equivalent. We also find that a nonrelativistic Hamiltonian
containing local potentials and nonrelativistic kinetic energy provides a good
approximation to a Hamiltonian containing a relativistic OPEP based on
pseudovector pion-nucleon coupling and relativistic kinetic energy.

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The categories of this paper are: comp-gas
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The categories of this paper are: bayes-an
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The categories of this paper are: q-bio
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The categories of this paper are: dg-ga
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The categories of this paper are: eess
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The categories of this paper are: hep-ex
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The categories of this paper are: physics
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The categories of this paper are: acc-phys
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The categories of this paper are: chao-dyn
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The categories of this paper are: nlin
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The categories of this paper are: hep-th
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The categories of this paper are: funct-an
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The categories of this paper are: supr-con
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The categories of this paper are: atom-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: q-fin