TY - JOUR
T1 - The global covariance matrix of tracks fitted with a Kalman filter and an application in detector alignment
AU - Hulsbergen, W.D.
PY - 2009/3/1
Y1 - 2009/3/1
N2 - We present an expression for the covariance matrix of the set of state vectors describing a track fitted with a Kalman filter. We demonstrate that this expression facilitates the use of a Kalman filter track model in a minimum χ2 algorithm for the alignment of tracking detectors. We also show that it allows to incorporate vertex constraints in such a procedure without refitting the tracks. © 2008 Elsevier B.V. All rights reserved.
AB - We present an expression for the covariance matrix of the set of state vectors describing a track fitted with a Kalman filter. We demonstrate that this expression facilitates the use of a Kalman filter track model in a minimum χ2 algorithm for the alignment of tracking detectors. We also show that it allows to incorporate vertex constraints in such a procedure without refitting the tracks. © 2008 Elsevier B.V. All rights reserved.
UR - http://www.scopus.com/inward/record.url?scp=59649090232&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2008.11.094
DO - 10.1016/j.nima.2008.11.094
M3 - Article
SN - 0168-9002
VL - 600
SP - 471
EP - 477
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 2
ER -