Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: LPM Interference and Cherenkov-like Gluon Bremsstrahlung in Dense Matter   Gluon bremsstrahlung induced by multiple parton scattering in a finite dense
medium has a unique angular distribution with respect to the initial parton
direction. A dead-cone structure with an opening angle $\theta^2_0 \approx
2(1-z)/(zLE)$ for gluons with fractional energy $z$ arises from the
Landau-Pomeranchuck-Migdal (LPM) interference. In a medium where the gluon's
dielectric constant is $\epsilon >1$, the LPM interference pattern is shown to
become Cherenkov-like with an increased opening angle determined by the
dielectric constant $\cos^2\theta_c=z+(1-z)/\epsilon$. For a large dielectric
constant $\epsilon \gg 1+2/z^2LE$, the corresponding total radiative parton
energy loss is about twice that from normal gluon bremsstrahlung. Implications
of this Cherenkov-like gluon bremsstrahlung to the jet correlation pattern in
high-energy heavy-ion collisions is discussed.

22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin