Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The DELPHI Silicon Tracker in the global pattern recognition   ALEPH and DELPHI were the first experiments operating a silicon vertex
detector at LEP. During the past 10 years of data taking the DELPHI Silicon
Tracker was upgraded three times to follow the different tracking requirements
for LEP 1 and LEP 2 as well as to improve the tracking performance. Several
steps in the development of the pattern recognition software were done in order
to understand and fully exploit the silicon tracker information. This article
gives an overview of the final algorithms and concepts of the track
reconstruction using the Silicon Tracker in DELPHI.

6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol