Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Heavy Quark Self-Energy in Nonrelativistic Lattice QCD   The heavy quark self-energy in nonrelativistic lattice QCD is calculated to
$O(\alpha_s)$ in perturbation theory. An action which includes all
spin-independent relativistic corrections to order $v^2$, where $v$ is the
typical heavy quark velocity, and all spin-dependent corrections to order $v^4$
is used. The standard Wilson action and an improved multi-plaquette action are
used for the gluons. Results for the mass renormalization, wavefunction
renormalization, and energy shift are given; tadpole contributions are found to
be large. A tadpole improvement scheme in which all link variables are rescaled
by a mean-field factor is also studied. The effectiveness of this scheme in
offsetting the large tadpole contributions to the heavy quark renormalization
parameters is demonstrated.

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The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ex
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The categories of this paper are: supr-con
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The categories of this paper are: econ
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The categories of this paper are: atom-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
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The categories of this paper are: hep-ph
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The categories of this paper are: nlin
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The categories of this paper are: chao-dyn
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The categories of this paper are: mtrl-th
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The categories of this paper are: math
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The categories of this paper are: q-bio
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The categories of this paper are: chem-ph