Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exclusive Decays of Beauty Hadrons   The principal difficulty in deducing weak interaction properties from
experimental measurements of $B$-decays lies in controlling the strong
interaction effects. In this talk I review the status of theoretical
calculations of the amplitudes for exclusive leptonic and semileptonic decays,
in the latter case with special emphasis on the extraction of the $V_{cb}$ and
$V_{ub}$ matrix elements.

12
The categories of this paper are: nucl-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: stat
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
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The categories of this paper are: eess
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The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom