Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Massive c-quark contributions to semileptonic b-quark decay near
  threshold   The decay width of b to c,c,c,l,nu has been computed as an expansion in limit
(1- 3*(m_c/m_b)) << 1 with zero lepton invariant mass. Considering O(alpha_s^2)
corrections to b to c,l,nu with zero invariant lepton mass, inclusion of our
result is shown to rectify the disagreement between the expansions around
(1-(m_c/m_b)) << 1 and m_c/m_b << 1 at smaller values.

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The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
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The categories of this paper are: quant-ph
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
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The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph