Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Jet transport and photon bremsstrahlung via longitudinal and transverse
  scattering   We study the effect of multiple scatterings on the propagation of hard
partons and the production of jet-bremsstrahlung photons inside a dense medium
in the framework of deep-inelastic scattering off a large nucleus. We include
the momentum exchanges in both longitudinal and transverse directions between
the hard partons and the constituents of the medium. Keeping up to the second
order in a momentum gradient expansion, we derive the spectrum for the photon
emission from a hard quark jet when traversing dense nuclear matter. Our
calculation demonstrates that the photon bremsstrahlung process is influenced
not only by the transverse momentum diffusion of the propagating hard parton,
but also by the longitudinal drag and diffusion of the parton momentum. A
notable outcome is that the longitudinal drag tends to reduce the amount of
stimulated emission from the hard parton.

2
The categories of this paper are: math
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int