Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Remark on the kinematics of the one-photon production in electron-proton
  scattering   I clarify the mistakes in the original version hep-ph/9705427 about the phase
space factor for the one-photon production in electron-proton scattering and
confirm that the earlier result given by Kroll, Sch\"urmann and Guichon is
right.

15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th