Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lepton Spectra and the B Polarization at LEP   I review the present state of knowledge on lepton energy spectra in the
inclusive semileptonic decay of beauty hadrons, as a means to measure b
polarization effects on the Z peak. Charged-lepton as well as neutrino spectra
are considered.

30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org