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research article
Application of vertex and mass constraints in track-based alignment
The software alignment of planar tracking detectors using samples of charged particle trajectories may lead to global detector distortions that affect vertex and momentum resolution. We present an alignment procedure that constrains such distortions by making use of samples of decay vertices reconstructed from two or more trajectories and putting constraints on their invariant mass. We illustrate the method by using a sample of invariant-mass constrained vertices from D-0 -> K-pi(+) decays to remove a curvature bias in the LHCb spectrometer. (c) 2013 Elsevier B.V. All rights reserved.
Type
research article
Web of Science ID
WOS:000318332200007
Authors
Amoraal, J.
•
Blouw, J.
•
Blusk, S.
•
Borghi, S.
•
Cattaneo, M.
•
Chiapolini, N.
•
Conti, G.
•
Deissenroth, M.
•
Dupertuis, F.
•
Van Der Eijk, R.
Publication date
2013
Publisher
Volume
712
Start page
48
End page
55
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
October 1, 2013
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