Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of Leading Particle Effects in Decays of Z0 Bosons into
  Light Flavors   We present evidence for leading particle production in hadronic decays of the
Z0 boson to light-flavor jets. A polarized electron beam was used to tag quark
and antiquark jets, and a vertex detector was employed to reject heavy-flavor
events. Charged hadrons were identified with a Cherenkov ring imaging detector.
In the quark jets, more high-momentum p, Lambda, K-, and anti-K*0 were observed
than their antiparticles, and vice versa for antiquark jets, providing direct
evidence that the higher-momentum particles in jets are more likely to carry
the primary quark or antiquark from the Z0 decay, and that s-s(bar) production
is suppressed in fragmentation.

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The categories of this paper are: q-bio
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The categories of this paper are: funct-an
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
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The categories of this paper are: hep-lat
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The categories of this paper are: dg-ga
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph