Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Limits on spin-dependent WIMP-nucleon cross sections from 225 live days
  of XENON100 data   We present new experimental constraints on the elastic, spin-dependent
WIMP-nucleon cross section using recent data from the XENON100 experiment,
operated in the Laboratori Nazionali del Gran Sasso in Italy. An analysis of
224.6 live days x 34 kg of exposure acquired during 2011 and 2012 revealed no
excess signal due to axial-vector WIMP interactions with 129-Xe and 131-Xe
nuclei. This leads to the most stringent upper limits on WIMP-neutron cross
sections for WIMP masses above 6 GeV, with a minimum cross section of 3.5 x
10^{-40} cm^2 at a WIMP mass of 45 GeV, at 90% confidence level.

10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom