Application of vertex and mass constraints in track-based alignment
Amoraal, J.; Blouw, J.; Blusk, S.; Borghi, S.; Cattaneo, M.; Chiapolini, N.; Conti, G.; Deissenroth, M.; Dupertuis, F.; Van Der Eijk, R.; Fave, V.; Gersabeck, M.; Hicheur, A.; Hulsbergen, W.; Hutchcroft, D.; Kozlinskiy, A.; Lambert, R. W.; Maciuc, F.; Maerki, R.; Martinelli, M.; Merk, M.; Needham, M.; Nicolas, L.; Palacios, J.; Parkes, C.; Pellegrino, A.; Pozzi, S.; Raven, G.; Rodrigues, E.; Salzmann, C.; Schiller, M.; Schneider, O.; Simioni, E.; Steinkamp, O.; Van Tilburg, J.; Tuning, N.; Uwer, U.; Vecchi, S.; Viret, S.
2013
Abstract
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.
Details
Title
Application of vertex and mass constraints in track-based alignment
Author(s)
Amoraal, J. ; Blouw, J. ; Blusk, S. ; Borghi, S. ; Cattaneo, M. ; Chiapolini, N. ; Conti, G. ; Deissenroth, M. ; Dupertuis, F. ; Van Der Eijk, R. ; Fave, V. ; Gersabeck, M. ; Hicheur, A. ; Hulsbergen, W. ; Hutchcroft, D. ; Kozlinskiy, A. ; Lambert, R. W. ; Maciuc, F. ; Maerki, R. ; Martinelli, M. ; Merk, M. ; Needham, M. ; Nicolas, L. ; Palacios, J. ; Parkes, C. ; Pellegrino, A. ; Pozzi, S. ; Raven, G. ; Rodrigues, E. ; Salzmann, C. ; Schiller, M. ; Schneider, O. ; Simioni, E. ; Steinkamp, O. ; Van Tilburg, J. ; Tuning, N. ; Uwer, U. ; Vecchi, S. ; Viret, S.
Published in
Nuclear Instruments & Methods In Physics Research Section A
Pagination
8
Volume
712
Pages
48-55
Date
2013
Publisher
Amsterdam, Elsevier Science Bv
Keywords
Other identifier(s)
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Laboratories
LPHE
Record Appears in
Scientific production and competences > SB - School of Basic Sciences > IPHYS - Institute of Physics > LPHE - High Energy Physics Laboratory
Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
Record creation date
2013-10-01