Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Poincar\'e-covariant analysis of heavy-quark baryons   We use a symmetry-preserving truncation of meson and baryon bound-state
equations in quantum field theory in order to develop a unified description of
systems constituted from light- and heavy-quarks. In particular, we compute the
spectrum and leptonic decay constants of ground-state pseudoscalar- and
vector-mesons: $q^\prime \bar q$, $Q^\prime \bar Q$, with $q^\prime,q=u,d,s$
and $Q^\prime,Q = c,b$; and the masses of $J^P=3/2^+$ baryons and their first
positive-parity excitations, including those containing one or more heavy
quarks. This Poincar\'e-covariant analysis predicts that such baryons have a
complicated angular momentum structure. For instance, the ground states are all
primarily $S$-wave in character, but each possesses $P$-, $D$- and $F$-wave
components, with the $P$-wave fraction being large in the $qqq$ states; and the
first positive-parity excitation in each channel has a large $D$-wave
component, which grows with increasing current-quark mass, but also exhibits
features consistent with a radial excitation. The configuration space extent of
all such baryons decreases as the mass of the valence-quark constituents
increases.

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The categories of this paper are: nlin
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The categories of this paper are: acc-phys
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-ex
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The categories of this paper are: gr-qc
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The categories of this paper are: cs
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The categories of this paper are: math
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The categories of this paper are: eess
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The categories of this paper are: chao-dyn
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The categories of this paper are: atom-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-bio
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The categories of this paper are: nucl-ex
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The categories of this paper are: solv-int
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The categories of this paper are: hep-lat
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The categories of this paper are: q-alg