Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: ZEPLIN IV: A One Ton Ultimate WIMP Detector   We describe the research and development program carried out by the UCLA -
Torino group leading to the ZEPLIN II detector under construction for the
Boulby Laboratory. Knowledge of ZEPLIN II performance will help in the design
and construction of ZEPLIN IV. This detector could be located at a U.S.
underground laboratory (WIPP site or others) or elsewhere. We show that a
detector of this size is required to observe SUSY WIMPS.

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The categories of this paper are: q-bio
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The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
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The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
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The categories of this paper are: econ
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
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The categories of this paper are: patt-sol
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The categories of this paper are: eess
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga