Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Assessment of Transverse Instabilities in Proton Driven Hollow Plasma
  Wakefield Acceleration   Hollow plasma has been introduced into the proton-driven plasma wakefield
accelerators to overcome the issue of beam quality degradation caused by the
nonlinear transverse wakefields varying in radius and time in uniform plasma.
It has been demonstrated in simulations that the electrons can be accelerated
to energy frontier with well-preserved beam quality in a long hollow plasma
channel. However, this scheme imposes tight requirements on the beam-channel
alignment. Otherwise asymmetric transverse wakefields along the axis are
induced, which could distort the driving bunch and deteriorate the witness beam
quality. In this paper, by means of the 2D cartesian particle-in-cell
simulations, we examine the potentially detrimental effects induced by the
driving beam-channel offset and initial driver tilt, and then propose and
assess the solutions to these driver inaccuracy issues.

2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an