Measurement of the hadron cross section with the L3 detector and determination of Standard Model parameters:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | German |
| Veröffentlicht: |
1996
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| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | IV, 169 S. Ill., graph. Darst. |
Internformat
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| 245 | 1 | 0 | |a Measurement of the hadron cross section with the L3 detector and determination of Standard Model parameters |c vorgelegt von Christoph Maria Ernst Paus |
| 264 | 1 | |c 1996 | |
| 300 | |a IV, 169 S. |b Ill., graph. Darst. | ||
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Datensatz im Suchindex
| _version_ | 1812453320301740032 |
|---|---|
| adam_text |
CONTENTS
1 THE STANDARD MODEL OF PARTICLE PHYSICS 3
1.1 GAUGE GROUPS AND PARTICLES. 3
1.2 SYMMETRY BREAKING AND BOSON MASS GENERATION. 5
1.3 CURRENTS IN PARTICLE PHYSICS. ^. 7
1.3.1 FERMI'S THEORY.!. 8
1.3.2 ELECTROWEAK CURRENTS. 8
1.4 STANDARD MODEL PARAMETERS. 9
1.5 LOWEST ORDER CROSS SECTION AND ASYMMETRIES.10
1.5.1 CROSS SECTION. 11
1.5.2 ASYMMETRIES. 12
1.6 HIGHER ORDER CORRECTIONS.13
1.6.1 HIGHER ORDER CORRECTIONS TO COUPLINGS.14
1.6.2 HIGHER ORDER CORRECTIONS TO THE FERMI CONSTANT .15
1.6.3 BREMSSTRAHLQNG CORRECTIONS.17
1.6.4 HIGHER ORDER CORRECTIONS TO THE CROSS SECTION .19
2 L3 EXPERIMENT AT LEP 21
2.1 LEP STORAGE RING.21
2.1.1 ELECTRON AND POSITRON BEAMS.21
2.1.2 ENERGY CALIBRATION . 22
2.2 L3 EXPERIMENT. .29
2.2.1 CENTRAL IKACKING SYSTEM. 30
2.2.2 CALORIMETRIC SYSTEM.33
2.2.3 MUON DETECTION SYSTEM.38
2.2.4 SYSTEM FOR LUMINOSITY MEASUREMENT.39
2.2.5 L3 TRIGGER .41
2.2.6 L3 SOFTWARE PACKAGES FOR PHYSICS ANALYSES .44
L
BIBLIOGRAFISCHE INFORMATIONEN
HTTP://D-NB.INFO/950225622
3 MEASUREMENT OF THE INTEGRATED LUMINOSITY 49
3.1 TRIGGER CONDITIONS. 49
3.2 EVENT SELECTION AND RESULTS.50
3.3 SYSTEMATIC UNCERTAINTIES . 51
4 HADRONIC FINAL STATES AT THE Z POLE 55
4.1 FROM Z BOSON TO FINAL STATE HADRONS.55
4.2 EVENT STRUCTURE. 58
4.3 FINE TUNING OF THE MONTE CARLO .62
4.3.1
YY
TIME DEPENDENT DETECTOR INEFFICIENCIES.62
4.3.2 LOW ENERGY DETECTOR NOISE.65
4.3.3 LOW ENERGY CLUSTER MULTIPLICITY.
66
4.4 EVENT SELECTION.67
4.5 DETECTOR NOISE.73
4.6 RESONANT BACKGROUND. 76
4.7 NON-RESONANT BACKGROUND.77
4.7.1 TWO-PHOTON COLLISION PROCESSES.78
4.7.2 ESTIMATION OF NON-RESONANT BACKGROUND.80
4.8 TRIGGER EFFICIENCIES.82
4.9 ACCEPTANCE.87
4.9.1 EFFECTS OF INITIAL STATE RADIATION.
88
4.9.2 FAST TUNING OF HERWIG MONTE CARLO.89
4.10 CROSS SECTION MEASUREMENT.91
4.11 SYSTEMATIC ERRORS.91
5 HADRONIC FINAL STATES WELL ABOVE THE Z POLE 95
5.1 EVENT SELECTION. 96
5.2 TOTAL CROSS SECTION .98
6 ELECTROWEAK PARAMETERS FROM L3 MEASUREMENTS 101
6.1 INPUT DATA FOR THE FITS .102
6.2 FIT PROCEDURE AND CORRECTIONS TO THE DATA. 102
6.3 DETERMINATION OF THE Z-BOSON PROPERTIES.105
6.3.1 S-MATRIX ANALYSIS.106
6.3.2 BREIT-WIGNER ANSATZ WITH FIXED
7Z INTERFERENCE.109
6.3.3 VECTOR AND AXIAL-VECTOR COUPLINGS ANSATZ .112
6.4 INTERPRETATION WITHIN THE STANDARD MODEL.116
II
7
MEASUREMENTS FROM OTHER EXPERIMENTS 110
7.1 COMPARISON BETWEEN LEP EXPERIMENTS .119
7.2 COMBINED Z PROPERTIES. 122
7.2.1 COMBINATION PROCEDURE.122
7.2.2 Z-BOSON MASS.126
7.2.3 Z-BOSON WIDTH .128
7.2.4 PARTIAL DECAY WIDTHS AND RELATED QUANTITIES.128
7.2.5 EFFECTIVE COUPLINGS .131
7.2.6 EFFECTIVE ELECTROWEAK MIXING ANGLE.133
7.3 BEST STANDARD MODEL CONSTRAINTS.133
8 CONCLUSION AND OUTLOOK 141
A LOW ENERGY NOISE IN THE CALORIMETERS 157
A.L HADRON CALORIMETER.157
A.2 ELECTROMAGNETIC CALORIMETER.159
B L3 DATA INPUT FOR THE FIT PROCEDURE 163
C CORRELATION MATRICES 167
D RESULTS FROM THE LEP EXPERIMENTS 169
IN |
| any_adam_object | 1 |
| author | Paus, Christoph M. E. |
| author_facet | Paus, Christoph M. E. |
| author_role | aut |
| author_sort | Paus, Christoph M. E. |
| author_variant | c m e p cme cmep |
| building | Verbundindex |
| bvnumber | BV011365720 |
| classification_tum | PHY 435d PHY 422d PHY 412d |
| ctrlnum | (OCoLC)61772938 (DE-599)BVBBV011365720 |
| discipline | Physik |
| format | Thesis Book |
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| genre_facet | Hochschulschrift |
| id | DE-604.BV011365720 |
| illustrated | Illustrated |
| indexdate | 2024-10-09T16:09:38Z |
| institution | BVB |
| language | German |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-007638718 |
| oclc_num | 61772938 |
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| owner_facet | DE-739 DE-91 DE-BY-TUM DE-29T DE-355 DE-BY-UBR DE-83 DE-11 DE-188 |
| physical | IV, 169 S. Ill., graph. Darst. |
| publishDate | 1996 |
| publishDateSearch | 1996 |
| publishDateSort | 1996 |
| record_format | marc |
| spelling | Paus, Christoph M. E. Verfasser aut Measurement of the hadron cross section with the L3 detector and determination of Standard Model parameters vorgelegt von Christoph Maria Ernst Paus 1996 IV, 169 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Aachen, Techn. Hochsch., Diss., 1996 Standardmodell Elementarteilchenphysik (DE-588)4297710-1 gnd rswk-swf Hadronischer Wirkungsquerschnitt (DE-588)4247299-4 gnd rswk-swf L3-Detektor (DE-588)4352014-5 gnd rswk-swf Elektron-Positron-Vernichtung (DE-588)4236363-9 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Elektron-Positron-Vernichtung (DE-588)4236363-9 s Hadronischer Wirkungsquerschnitt (DE-588)4247299-4 s L3-Detektor (DE-588)4352014-5 s Standardmodell Elementarteilchenphysik (DE-588)4297710-1 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=007638718&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Paus, Christoph M. E. Measurement of the hadron cross section with the L3 detector and determination of Standard Model parameters Standardmodell Elementarteilchenphysik (DE-588)4297710-1 gnd Hadronischer Wirkungsquerschnitt (DE-588)4247299-4 gnd L3-Detektor (DE-588)4352014-5 gnd Elektron-Positron-Vernichtung (DE-588)4236363-9 gnd |
| subject_GND | (DE-588)4297710-1 (DE-588)4247299-4 (DE-588)4352014-5 (DE-588)4236363-9 (DE-588)4113937-9 |
| title | Measurement of the hadron cross section with the L3 detector and determination of Standard Model parameters |
| title_auth | Measurement of the hadron cross section with the L3 detector and determination of Standard Model parameters |
| title_exact_search | Measurement of the hadron cross section with the L3 detector and determination of Standard Model parameters |
| title_full | Measurement of the hadron cross section with the L3 detector and determination of Standard Model parameters vorgelegt von Christoph Maria Ernst Paus |
| title_fullStr | Measurement of the hadron cross section with the L3 detector and determination of Standard Model parameters vorgelegt von Christoph Maria Ernst Paus |
| title_full_unstemmed | Measurement of the hadron cross section with the L3 detector and determination of Standard Model parameters vorgelegt von Christoph Maria Ernst Paus |
| title_short | Measurement of the hadron cross section with the L3 detector and determination of Standard Model parameters |
| title_sort | measurement of the hadron cross section with the l3 detector and determination of standard model parameters |
| topic | Standardmodell Elementarteilchenphysik (DE-588)4297710-1 gnd Hadronischer Wirkungsquerschnitt (DE-588)4247299-4 gnd L3-Detektor (DE-588)4352014-5 gnd Elektron-Positron-Vernichtung (DE-588)4236363-9 gnd |
| topic_facet | Standardmodell Elementarteilchenphysik Hadronischer Wirkungsquerschnitt L3-Detektor Elektron-Positron-Vernichtung Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=007638718&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| work_keys_str_mv | AT pauschristophme measurementofthehadroncrosssectionwiththel3detectoranddeterminationofstandardmodelparameters |