Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Super-ponderomotive electron acceleration in blowout plasma heated by
  multi-picosecond relativistic intensity laser pulse   The dependence of the mean kinetic energy of laser-accelerated electrons on
the laser intensity, so-called ponderomotive scaling, was derived theoretically
with consideration of the motion of a single electron in oscillating laser
fields. This scaling explains well the experimental results obtained with
high-intensity pulses and durations shorter than a picosecond; however, this
scaling is no longer applicable to the multi-picosecond (multi-ps) facility
experiments. Here, we experimentally clarified the generation of the
super-ponderomotive-relativistic electrons (SP-REs) through multi-ps
relativistic laser-plasma interactions using prepulse-free LFEX laser pulses
that were realized using a plasma mirror (PM). The SP-REs are produced with
direct laser acceleration assisted by the self-generated quasi-static electric
field and with loop-injected direct acceleration by the self- generated
quasi-static magnetic field, which grow in a blowout plasma heated by a
multi-ps laser pulse. Finally, we theoretically derive the threshold pulse
duration to boost the acceleration of REs, which provides an important insight
into the determination of laser pulse duration at kilojoule- petawatt laser
facilities.

19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
2
The categories of this paper are: math