Abstract
The first subject addressed in this thesis is the contribution of the VSAT luminosity to the lineshape analysis, i.e. to the extraction of the mass and width of the Z0 boson from LEP1 DELPHI data. The VSAT detector has contributed to the lineshape parameter determination by providing a relative luminosity measurement of high accuracy. The second subject of the thesis is the extraction of the helicity components of the fragmentation function. The analysis is performed on data collected by the DELPHI detector from 1992 to 1995 . The study concentrates on the correction required for the hadronization process. Hadronization mainly affects the longitudinal component of the fragmentation function. The corrected measurement is used for the extraction of the strong coupling constant.
| Original language | English |
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| Qualification | Doctor |
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| Supervisors/Advisors |
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| Award date | 2001 May 28 |
| Publisher | |
| ISBN (Print) | 91-7874-126-2 |
| Publication status | Published - 2001 |
Bibliographical note
Defence detailsDate: 2001-05-28
Time: 10:15
Place: Hall B, Physics Department
External reviewer(s)
Name: Hansen, Peter
Title: Prof
Affiliation: NBI
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A Measurement of the beam parameter variations inDELPHI with the VSAT, DELPHI 95-150 LEDI 2.
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B VSAT luminosity for the 1995 scan,DELPHI 2000-005 PHYS 848.
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C Measurement of the beam parameters during the1995 Z0 scan with the DELPHI VSAT,DELPHI 2000-006 PHYS 849.
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D Hadronization corrections to helicity componentsof the fragmentation function, hep-ph/0104118,submitted to Eur. Phys. Journal C.
Subject classification (UKÄ)
- Subatomic Physics
Free keywords
- luminosity
- hadronization
- Z boson
- strong coupling constant
- Elementary particle physics
- Elementarpartikelfysik
- quantum field theory
- Fysicumarkivet A:2001:Jarlskog
- LEP
- DELPHI
- kvantfältteori
- Physics
- Fysik