Application of vertex and mass constraints in track-based alignment
Instrumentation and Detectors
2013-04-01 v2 High Energy Physics - Experiment
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.
Keywords
Cite
@article{arxiv.1207.4756,
title = {Application of vertex and mass constraints in track-based alignment},
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 R. van der Eijk and V. Fave and M. Gersabeck and A. Hicheur and W. Hulsbergen and D. Hutchcroft and A. Kozlinskiy and R. W. Lambert and F. Maciuc and R. Marki 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 M. Schiller and O. Schneider and E. Simioni and O. Steinkamp and J. van Tilburg and N. Tuning and U. Uwer and S. Vecchi and S. Viret},
journal= {arXiv preprint arXiv:1207.4756},
year = {2013}
}
Comments
18 pages, 6 figures