Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Semileptonic B_c decays to P-wave charmonia in the light-cone QCDSR   B_c mesons are laboratories for probing heavy quark physics. Furthermore,
they decay into charmonia and hence their decays can be used to analyze
possible exotic charmonium. In this work, the semileptonic decays of B_c mesons
into P wave charmonia are analysed using QCD sum rules (QCDSR). The
distributions amplitudes for the charmonia are taken from a quark model
computation. The obtained decay rates for the ground state and excited
charmonia are compared with the results found in the literature.

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The categories of this paper are: stat
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The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-th
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The categories of this paper are: solv-int
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The categories of this paper are: hep-ex
2
The categories of this paper are: math
11
The categories of this paper are: hep-lat
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The categories of this paper are: comp-gas