Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: ZEPLIN IV: A 1-Ton Very Sensitive ZEPLIN II Extension for SUSY Dark
  Matter   We present a concept of a one ton two-phase liquid Xenon detector based on
the concept of the ZEPLIN II detector currently under construction by a
UCLA/Torino/UKDM team. The ZEPLIN II detector may be installed in the Boulby
laboratory early in 2002. The one ton detector design will benefit from the
initial operations of ZEPLIN II.

27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ