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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 reconst...

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Main Authors: Amoraal, Jan (Author) , Blouw, Johan (Author) , Blusk, S. (Author) , Borghi, S. (Author) , Cattaneo, M. (Author) , Chiapolini, N. (Author) , Conti, G. (Author) , Deissenroth, Marc (Author) , Dupertuis, F. (Author) , van der Eijk, R. (Author) , Fave, V. (Author) , Gersabeck, M. (Author) , Hicheur, A. (Author) , Hulsbergen, W. (Author) , Hutchcroft, D. (Author) , Kozlinskiy, A. (Author) , Lambert, R. W. (Author) , Maciuc, Florin (Author) , Märki, R. (Author) , Martinelli, M. (Author) , Merk, M. (Author) , Needham, M. (Author) , Nicolas, L. (Author) , Palacios, J. (Author) , Parkes, C. (Author) , Pellegrino, A. (Author) , Pozzi, S. (Author) , Raven, G. (Author) , Rodrigues, E. (Author) , Salzmann, C. (Author) , Schiller, M. (Author) , Schneider, O. (Author) , Simioni, E. (Author) , Steinkamp, O. (Author) , Tilburg, Jeroen van (Author) , Tuning, N. (Author) , Uwer, Ulrich (Author) , Vecchi, S. (Author) , Viret, S. (Author)
Format: Article (Journal)
Language:English
Published: 14 February 2013
In: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment
Year: 2013, Volume: 712, Pages: 48-55
ISSN:1872-9576
DOI:10.1016/j.nima.2012.11.192
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.nima.2012.11.192
Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S0168900213001861
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Author Notes:J. Amoraal, J. Blouw, S. Blusk, S. Borghi, M. Cattaneo, N. Chiapolini, G. Conti, M. Deissenroth, F. Dupertuis, R. van der Eijk, V. Fave, M. Gersabeck, A. Hicheur, W. Hulsbergen, D. Hutchcroft, A. Kozlinskiy, R.W. Lambert, F. Maciuc, R. Märki, M. Martinelli, M. Merk, M. Needham, L. Nicolas, J. Palacios, C. Parkes, A. Pellegrino, S. Pozzi, G. Raven, E. Rodrigues, C. Salzmann, M. Schiller, O. Schneider, E. Simioni, O. Steinkamp, J. van Tilburg, N. Tuning, U. Uwer, S. Vecchi, S. Viret
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Summary: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 D0→K−π+ decays to remove a curvature bias in the LHCb spectrometer.
Item Description:Gesehen am 19.10.2020
Physical Description:Online Resource
ISSN:1872-9576
DOI:10.1016/j.nima.2012.11.192

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