Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hard-scattering and Jets from RHIC to LHC: a critical review   Jets in hadron collisions are very complicated with a long learning curve
replete with errors. In relativistic heavy ion (RHI) collisions, it is likely
that jets will be much more complicated with an even longer and more difficult
learning curve. Hard scattering is more easily observed via single particle and
few particle correlation measurements. The main advantage of jets is higher
rate at large $p_T$, plus the possibility of detailed studies of soft
fragmentation if the soft fragments can be separated from the background. A
critical review of the possibility of using jets as a probe of hard-scattering
in RHI collisions is presented along with other probes and measurements which
the author considers much more likely to reveal the interesting physics in
Pb+Pb collisions at the LHC. Finally, a list of unanswered questions raised by
results at RHIC is presented.

9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess