Application of vertex and mass constraints in track-based alignment

J. Amoraal; J. Blouw; S. Blusk; S. Borghi; M. Cattaneo; N. Chiapolini; G. Conti; M. Deissenroth; F. Dupertuis; V. Fave; M. Gersabeck; A. Hicheur; W. Hulsbergen; D. Hutchcroft; A. Kozlinskiy; R. W. Lambert; F. Maciuc; R. Maerki; M. Martinelli; M. Merk; M. Needham; L. Nicolas; J. Palacios; C. Parkes; A. Pellegrino; S. Pozzi; G. Raven; E. Rodrigues; C. Salzmann; O. Schneider; E. Simioni; O. Steinkamp; J. van Tilburg; N. Tuning; U. Uwer; S. Vecchi; S. Viret

doi:10.1016/j.nima.2012.11.192

Application of vertex and mass constraints in track-based alignment

J. Amoraal, J. Blouw, S. Blusk, S. Borghi, M. Cattaneo, N. Chiapolini, G. Conti, M. Deissenroth, F. Dupertuis, V. Fave, M. Gersabeck, A. Hicheur, W. Hulsbergen^*, D. Hutchcroft, A. Kozlinskiy, R. W. Lambert, F. Maciuc, R. Maerki, M. Martinelli, M. MerkM. Needham, L. Nicolas, J. Palacios, C. Parkes, A. Pellegrino, S. Pozzi, G. Raven, E. Rodrigues, C. Salzmann, O. Schneider, E. Simioni, O. Steinkamp, J. van Tilburg, N. Tuning, U. Uwer, S. Vecchi, S. Viret

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

33 Citations (Scopus)

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.

Original language	English
Pages (from-to)	48-55
Number of pages	8
Journal	Nuclear instruments & methods in physics research section a-Accelerators spectrometers detectors and associated equipment
Volume	712
DOIs	https://doi.org/10.1016/j.nima.2012.11.192
Publication status	Published - 1-Jun-2013
Externally published	Yes

Keywords

Detector alignment
Vertex fit
Curvature bias
DETECTORS

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Amoraal, J., Blouw, J., Blusk, S., Borghi, S., Cattaneo, M., Chiapolini, N., Conti, G., Deissenroth, M., Dupertuis, F., Fave, V., Gersabeck, M., Hicheur, A., Hulsbergen, W., Hutchcroft, D., Kozlinskiy, A., Lambert, R. W., Maciuc, F., Maerki, R., Martinelli, M., ... Viret, S. (2013). Application of vertex and mass constraints in track-based alignment. Nuclear instruments & methods in physics research section a-Accelerators spectrometers detectors and associated equipment, 712, 48-55. https://doi.org/10.1016/j.nima.2012.11.192

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title = "Application of vertex and mass constraints in track-based alignment",

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.",

keywords = "Detector alignment, Vertex fit, Curvature bias, DETECTORS",

author = "J. Amoraal and J. Blouw and S. Blusk and S. Borghi and M. Cattaneo and N. Chiapolini and G. Conti and M. Deissenroth and F. Dupertuis and V. Fave and M. Gersabeck and A. Hicheur and W. Hulsbergen and D. Hutchcroft and A. Kozlinskiy and Lambert, {R. W.} and F. Maciuc and R. Maerki and M. Martinelli and M. Merk and M. Needham and L. Nicolas and J. Palacios and C. Parkes and A. Pellegrino and S. Pozzi and G. Raven and E. Rodrigues and C. Salzmann and O. Schneider and E. Simioni and O. Steinkamp and {van Tilburg}, J. and N. Tuning and U. Uwer and S. Vecchi and S. Viret",

year = "2013",

month = jun,

day = "1",

doi = "10.1016/j.nima.2012.11.192",

language = "English",

volume = "712",

pages = "48--55",

journal = "Nuclear instruments & methods in physics research section a-Accelerators spectrometers detectors and associated equipment",

issn = "0168-9002",

publisher = "ELSEVIER SCIENCE BV",

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Amoraal, J, Blouw, J, Blusk, S, Borghi, S, Cattaneo, M, Chiapolini, N, Conti, G, Deissenroth, M, Dupertuis, F, Fave, V, Gersabeck, M, Hicheur, A, Hulsbergen, W, Hutchcroft, D, Kozlinskiy, A, Lambert, RW, 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, Schneider, O, Simioni, E, Steinkamp, O, van Tilburg, J, Tuning, N, Uwer, U, Vecchi, S & Viret, S 2013, 'Application of vertex and mass constraints in track-based alignment', Nuclear instruments & methods in physics research section a-Accelerators spectrometers detectors and associated equipment, vol. 712, pp. 48-55. https://doi.org/10.1016/j.nima.2012.11.192

TY - JOUR

T1 - Application of vertex and mass constraints in track-based alignment

AU - Amoraal, J.

AU - Blouw, J.

AU - Blusk, S.

AU - Borghi, S.

AU - Cattaneo, M.

AU - Chiapolini, N.

AU - Conti, G.

AU - Deissenroth, M.

AU - Dupertuis, F.

AU - Fave, V.

AU - Gersabeck, M.

AU - Hicheur, A.

AU - Hulsbergen, W.

AU - Hutchcroft, D.

AU - Kozlinskiy, A.

AU - Lambert, R. W.

AU - Maciuc, F.

AU - Maerki, R.

AU - Martinelli, M.

AU - Merk, M.

AU - Needham, M.

AU - Nicolas, L.

AU - Palacios, J.

AU - Parkes, C.

AU - Pellegrino, A.

AU - Pozzi, S.

AU - Raven, G.

AU - Rodrigues, E.

AU - Salzmann, C.

AU - Schneider, O.

AU - Simioni, E.

AU - Steinkamp, O.

AU - van Tilburg, J.

AU - Tuning, N.

AU - Uwer, U.

AU - Vecchi, S.

AU - Viret, S.

PY - 2013/6/1

Y1 - 2013/6/1

N2 - 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.

AB - 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.

KW - Detector alignment

KW - Vertex fit

KW - Curvature bias

KW - DETECTORS

U2 - 10.1016/j.nima.2012.11.192

DO - 10.1016/j.nima.2012.11.192

M3 - Article

SN - 0168-9002

VL - 712

SP - 48

EP - 55

JO - Nuclear instruments & methods in physics research section a-Accelerators spectrometers detectors and associated equipment

JF - Nuclear instruments & methods in physics research section a-Accelerators spectrometers detectors and associated equipment

ER -

Application of vertex and mass constraints in track-based alignment

Abstract

Keywords

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