Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Renormalon Phenomena in Jets and Hard Processes   The `renormalon' or `dispersive' method for estimating non-perturbative
corrections to QCD observables is reviewed. The corrections are
power-suppressed, i.e. of the form $A/Q^p$ where $Q$ is the hard process
momentum scale. The renormalon method exploits the connection between
divergences of the QCD perturbation series and low-momentum dynamics to predict
the power, $p$. The further assumption of an approximately universal low-energy
effective strong coupling leads to relationships between the coefficients $A$
for different observables. Results on $1/Q^2$ corrections to deep inelastic
structure functions and $1/Q$ corrections to event shapes are presented and
compared with experiment. Shape variables that could be free of $1/Q$ and
$\as(Q^2)/Q$ corrections are suggested.

32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex