Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Searches for Invisible Higgs bosons: Preliminary combined results using
  LEP data collected at energies up to 209 GeV   In the year 2000 the four LEP experiments have collected data at energies
between 200 and 209 GeV, for approximately 868 pb-1 integrated luminosity. The
LEP working group for Higgs boson searches has combined these data with earlier
data sets collected at lower centre-of-mass energies to search for a neutral
CP-even Higgs boson, produced at the Standard Model rate, decaying into
"invisible" particles. No statistically significant excess has been observed
when compared to the Standard Model background prediction, and assuming that
the Higgs boson decays only into such states a lower bound has been set on its
mass at 95% confidence level of 114.4 GeV.

17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph