Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Search for dark matter, extra dimensions, and unparticles in monojet
  events in proton-proton collisions at sqrt(s) = 8 TeV   Results are presented from a search for particle dark matter (DM), extra
dimensions, and unparticles using events containing a jet and an imbalance in
transverse momentum. The data were collected by the CMS detector in
proton-proton collisions at the LHC and correspond to an integrated luminosity
of 19.7 inverse femtobarns at a centre-of-mass energy of 8 TeV. The number of
observed events is found to be consistent with the standard model prediction.
Limits are placed on the DM-nucleon scattering cross section as a function of
the DM particle mass for spin-dependent and spin-independent interactions.
Limits are also placed on the scale parameter M[D] in the ADD model of large
extra dimensions, and on the unparticle model parameter Lambda[U]. The
constraints on ADD models and unparticles are the most stringent limits in this
channel and those on the DM-nucleon scattering cross section are an improvement
over previous collider results.

22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th