Simulations of the performance of the MVD in PHENIX

Citation
Mj. Bennett et al., Simulations of the performance of the MVD in PHENIX, IEEE NUCL S, 46(6), 1999, pp. 2022-2026
Citations number
7
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Nuclear Emgineering
Journal title
IEEE TRANSACTIONS ON NUCLEAR SCIENCE
ISSN journal
0018-9499 → ACNP
Volume
46
Issue
6
Year of publication
1999
Part
2
Pages
2022 - 2026
Database
ISI
SICI code
0018-9499(199912)46:6<2022:SOTPOT>2.0.ZU;2-H
Abstract
The PHENIX Multiplicity Vertex Detector (MVD) provides event characterizati on, a centrality trigger, collision vertex position, and measures fluctuati ons in charged particle multiplicities. The design criteria include a large rapidity coverage, good azimuthal coverage and granularity, minimizing mat erial in the electron arm acceptance, and minimizing costs. The MVD contain s two concentric barrels of Si strip detectors with two disk-shaped Si pad detector endcaps. Simulations will show that the vertex position can be loc ated to within a few hundred microns using hits in the barrels. A channel m ultiplicity signal is formed for use in the Level-1 trigger. The effect of the expected discriminator performance on this trigger signal will be shown . The pad and strip detectors are read-out with identical electronics. The influence of the performance of the electronics on the detector's performan ce will be discussed.