Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: QCD Sum Rule Study for a Possible Charmed Pentaquark \Theta c(3250)   We use QCD sum rules to study the possible existence of a \Theta c(3250)
charmed pentaquark. We consider the contributions of condensates up to
dimension-10 and work at leading order in \alpha_s. We obtain m(\Theta c) =
(3.21 +/- 0.13) GeV, compatible with the mass of the structure seen by BaBar
Collaboration in the decay channel B- -> p- \Sigma c++ pi- pi-. The proposed
state is compatible with a previous proposed pentaquark state in the
anti-charmed sector.

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The categories of this paper are: q-alg
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The categories of this paper are: cs
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: quant-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: alg-geom
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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: comp-gas
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The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: econ
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The categories of this paper are: nucl-ex
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The categories of this paper are: acc-phys