Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Calibration of the CMS Drift Tube Chambers and Measurement of the Drift
  Velocity with Cosmic Rays   This paper describes the calibration procedure for the drift tubes of the CMS
barrel muon system and reports the main results obtained with data collected
during a high statistics cosmic ray data-taking period. The main goal of the
calibration is to determine, for each drift cell, the minimum time delay for
signals relative to the trigger, accounting for the drift velocity within the
cell. The accuracy of the calibration procedure is influenced by the random
arrival time of the cosmic muons relative to the LHC clock cycle. A more
refined analysis of the drift velocity was performed during the offline
reconstruction phase, which takes into account this feature of cosmic ray
events.

20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con