Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On-shot diagnostic of electron beam-laser pulse interaction based on
  stochastic quantum radiation reaction   Ultrarelativistic electron beam-laser pulse scattering experiments are the
workhorse for the investigation of QED and of possible signatures of new
physics in the still largely unexplored strong-field regime. However,
shot-to-shot fluctuations both of the electron beam and of the laser pulse
parameters render it difficult to discern the dynamics of the interaction.
Consequently, the possibility of benchmarking theoretical predictions against
experimental results, which is essential for validating theoretical models, is
severely limited. Here we show that the stochastic nature of quantum emission
events provides a unique route to the on-shot diagnostic of the electron
beam-laser pulse interaction, therefore paving the way for accurate
measurements of strong-field QED effects.

31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol