학술논문

Recent results and running experience of the new ALEPH Vertex Detector
Document Type
Periodical
Source
IEEE Transactions on Nuclear Science IEEE Trans. Nucl. Sci. Nuclear Science, IEEE Transactions on. 39(4):701-706 Aug, 1992
Subject
Nuclear Engineering
Bioengineering
Detectors
Face detection
Silicon
Data acquisition
Springs
Jacobian matrices
Signal to noise ratio
Energy resolution
Signal resolution
Position measurement
Language
ISSN
0018-9499
1558-1578
Abstract
A description of the ALEPH Vertex Detector (VDET 91), including the mechanical structure and the improved data acquisition system, is given. The apparatus consists of two complete layers of silicon detectors with double-sided readout which provide a full x, y, z information of the impact points of charged particles. The authors show results on signal-to-noise ratio for minimum ionizing particles and efficiency in hit/track matching. Results on position, impact parameter, and momentum resolution are also shown as measured using high momentum muons. The first preliminary study on vertexing techniques and their impact on physics analysis is discussed.ETX