Abstract
High-energy heavy-ion collisions provide a unique tool for the study of nuclear matter as a function of temperature and density. WA98 at the CERN SPS recorded data with a 158 A GeV Pb beam on a Pb target in 1996. To cope with the high charged-particle density, a tracking system based on high granularity multi-step avalanche detectors was developed. The results from the first measurement of Delta++ production at this) energy are presented.
The PHENIX experiment at the Relativistic Heavy Ion Collider, RHIC, took its first data at unprecedented energies during the summer of 2000. The Pad Chamber detector system, designed to provide space points along each track in the spectrometer arms at midrapidity, performed extremely well. Two very different PHENIX analysis topics, based on Pad Chamber data, are presented: charged-particle multiplicity and coherent peripheral interactions.
The PHENIX experiment at the Relativistic Heavy Ion Collider, RHIC, took its first data at unprecedented energies during the summer of 2000. The Pad Chamber detector system, designed to provide space points along each track in the spectrometer arms at midrapidity, performed extremely well. Two very different PHENIX analysis topics, based on Pad Chamber data, are presented: charged-particle multiplicity and coherent peripheral interactions.
| Original language | English |
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| Qualification | Doctor |
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| Award date | 2001 Nov 16 |
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| ISBN (Print) | 91-7874-142-4 |
| Publication status | Published - 2001 |
Bibliographical note
Defence detailsDate: 2001-11-16
Time: 10:15
Place: Lecture Hall B, Dept. of Physics
External reviewer(s)
Name: Ritter, Hans Georg
Title: Prof
Affiliation: Berkeley, USA
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L. Carlen et al.A large-acceptance spectrometer for tracking in ahigh-multiplicity environment, based on space pointmeasurements and high-resolution time-of-flightNucl. Instr. and Methods A 431 (1999) 123-133.
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M.M. Aggarwal et al. (WA98 collaboration).$Delta^{++$ production in 158 A GeV $^{208$Pb+$^{208$Pb interactionsat the CERN SPSPhysics Letters B 477 (2000) 37-44
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K. Adcox et al.Construction and Performance of the PHENIX PadChambersTo be submitted to Nucl. Instr. and Methods A
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K. Adcox et al. (PHENIX collaboration).Centrality Dependence of Charged Particle Multiplicityin Au-Au Collisions at $sqrt{s_{NN}}$ = 130 GeVPhys. Rev. Lett 86 (2001) 3500-3505
Subject classification (UKÄ)
- Subatomic Physics
Free keywords
- RHIC
- pad readout
- electronic
- chip-on-board
- tracking
- heavy-ion collisions
- freeze-out temperature
- delta resonance
- SPS
- WA98
- PHENIX
- Fysik
- coherent peripheral
- multiplicity
- Physics
- Fysicumarkivet A:2001:Silvermyr