Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Status of the EDELWEISS Experiment   The status of the EDELWEISS experiment (underground dark matter search with
heat-ionisation bolometers) is reviewed. Auspicious results achieved with a
prototype 70 g Ge heat-ionisation detector under a 2 V reverse bias tension are
discussed. Based on gamma and neutron calibrations, a best-case rejection
factor, over the 15-45 keV range, of 99.7 % for gammas, with an acceptance of
94 % for neutrons, is presented first. Some operational results of physical
interest obtained under poor low radioactivity conditions follow. They include
a raw event rate of around 30 events/day/kg/keV over the same energy range,
and, after rejection of part of the background, lead to a conservative upper
limit on the signal of approximately 1.6 events/day/kg/keV at a 90 % confidence
level. Performance degrading surface effects of the detector are speculated
upon; and planned upgrades are summarized.

11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int