Application of vertex and mass constraints in track-based alignment

Amoraal, J. et al. (2013) Application of vertex and mass constraints in track-based alignment. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 712, pp. 48-55. (doi: 10.1016/j.nima.2012.11.192)

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 Do -> K-π+ decays to remove a curvature bias in the LHCb spectrometer.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Viret, Dr Sebastien and Schiller, Dr Manuel
• Authors: 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., Märki, 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., and Viret, S.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
• Publisher: Elsevier
• ISSN: 0168-9002
• ISSN (Online): 1872-9576

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