Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Beam-driven, Plasma-based Particle Accelerators   We briefly give some of the characteristics of the beam-driven, plasma-based
particle accelerator known as the plasma wakefield accelerator (PWFA). We also
mention some of the major results that have been obtained since the birth of
the concept. We focus on high-energy particle beams where possible.

31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph