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Delta++ Resonance Measurements in a High Multiplicity Environment

El Chenawi, Karim (1999) In Cosmic and Subatomic Physics Dissertation 1016.
Abstract
The very large multiplicity of charged particles encountered in lead on lead collisions in the WA98 experiment at the CERN SPS provided new experimental challenges. Tracking detectors read out with high granularity were developed to achieve accurate position information in two dimensions, with the aim of reconstructing tracks with a minimum of combinatorial difficulties. A tracking system based on multi-step avalanche chambers equipped with a new electronic readout system was developed and implemented in the experiment during 1996. The different aspects of the tracking system and its performance are described.



The extraction of the Delta<sup>++</sup> resonance from high statistics, high multiplicity samples... (More)
The very large multiplicity of charged particles encountered in lead on lead collisions in the WA98 experiment at the CERN SPS provided new experimental challenges. Tracking detectors read out with high granularity were developed to achieve accurate position information in two dimensions, with the aim of reconstructing tracks with a minimum of combinatorial difficulties. A tracking system based on multi-step avalanche chambers equipped with a new electronic readout system was developed and implemented in the experiment during 1996. The different aspects of the tracking system and its performance are described.



The extraction of the Delta<sup>++</sup> resonance from high statistics, high multiplicity samples of FRITIOF events has been studied in order to find a reliable method to reconstruct the number of produced Delta<sup>++</sup>. The first measurement on Delta<sup>++</sup> production in 158 A GeV Pb+Pb collisions, using the high resolution tracking system in WA98 is presented. (Less)
Please use this url to cite or link to this publication:
author
opponent
  • Prof Greene, Victoria, USA
publishing date
type
Thesis
publication status
published
subject
keywords
electronic, pad readout, VLSI, ASIC, chip-on-board, multi-step avalanche chamber, MSAC, tracking, position resolution, efficiency, delta resonance, heavy-ion collisions, freeze-out temperature, High energy interactions, cosmic rays, Kosmisk strålning, högenergi, Fysicumarkivet A:1999:El Chenawi
in
Cosmic and Subatomic Physics Dissertation
volume
1016
pages
140 pages
publisher
Department of Physics, Lund University
defense location
Lecture Hall B of the Department of Physics
defense date
1999-03-04 10:15
external identifiers
  • other:ISRN: LUNFD6/NFFK-1016-SE-140P
ISSN
1101-4202
ISBN
91-628-3377-4
language
English
LU publication?
no
id
6f160539-4ce0-43f8-bf49-fde8102e375c (old id 39328)
date added to LUP
2007-06-20 12:40:44
date last changed
2016-09-19 08:44:59
@phdthesis{6f160539-4ce0-43f8-bf49-fde8102e375c,
  abstract     = {The very large multiplicity of charged particles encountered in lead on lead collisions in the WA98 experiment at the CERN SPS provided new experimental challenges. Tracking detectors read out with high granularity were developed to achieve accurate position information in two dimensions, with the aim of reconstructing tracks with a minimum of combinatorial difficulties. A tracking system based on multi-step avalanche chambers equipped with a new electronic readout system was developed and implemented in the experiment during 1996. The different aspects of the tracking system and its performance are described.<br/><br>
<br/><br>
The extraction of the Delta&lt;sup&gt;++&lt;/sup&gt; resonance from high statistics, high multiplicity samples of FRITIOF events has been studied in order to find a reliable method to reconstruct the number of produced Delta&lt;sup&gt;++&lt;/sup&gt;. The first measurement on Delta&lt;sup&gt;++&lt;/sup&gt; production in 158 A GeV Pb+Pb collisions, using the high resolution tracking system in WA98 is presented.},
  author       = {El Chenawi, Karim},
  isbn         = {91-628-3377-4},
  issn         = {1101-4202},
  keyword      = {electronic,pad readout,VLSI,ASIC,chip-on-board,multi-step avalanche chamber,MSAC,tracking,position resolution,efficiency,delta resonance,heavy-ion collisions,freeze-out temperature,High energy interactions,cosmic rays,Kosmisk strålning,högenergi,Fysicumarkivet A:1999:El Chenawi},
  language     = {eng},
  pages        = {140},
  publisher    = {Department of Physics, Lund University},
  series       = {Cosmic and Subatomic Physics Dissertation},
  title        = {Delta<sup>++</sup> Resonance Measurements in a High Multiplicity Environment},
  volume       = {1016},
  year         = {1999},
}