Inclusive neutral current ep cross sections with HERA II and two-dimensional unfolding:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Hamburg
DESY
2011
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| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | VIII, 165 S. Ill., graph. Darst. |
Internformat
MARC
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| 100 | 1 | |a Fischer, David J. |e Verfasser |0 (DE-588)141201940 |4 aut | |
| 245 | 1 | 0 | |a Inclusive neutral current ep cross sections with HERA II and two-dimensional unfolding |c vorgelegt von David-Johannes Fischer |
| 264 | 1 | |a Hamburg |b DESY |c 2011 | |
| 300 | |a VIII, 165 S. |b Ill., graph. Darst. | ||
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| 655 | 7 | |0 (DE-588)4113937-9 |a Hochschulschrift |2 gnd-content | |
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| 999 | |a oai:aleph.bib-bvb.de:BVB01-024167760 | ||
Datensatz im Suchindex
| _version_ | 1804147993312493568 |
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| adam_text | IMAGE 1
CONTENTS
1 INTRODUCTION AND MOTIVATION 1
1.1 DIS AND HADRON STRUCTURE 1
1.2 HERA AND THE EP-EXPERIMENTS 2
1.3 THE IMPORTANCE OF HERA FOR THE LHC 4
1.4 LIMITATIONS OF THE BIN-BY-BIN-METHOD 5
1.5 UNFOLDING 5
1.6 HOW UNFOLDING EFFECTS HI CROSS SECTIONS 6
2 DIS AND QCD 7
2.1 EVENT KINEMATICS 7
2.2 DIS CROSS SECTION AND STRUCTURE FUNCTIONS 8
2.3 THE QUARK PARTON MODEL 9
2.4 DGLAP EVOLUTION 9
2.5 RADIATIVE EFFECTS 10
3 THE DETECTOR 13
3.1 HERA COLLIDER 13
3.2 THE HI DETECTOR 14
3.2.1 THE TRACKING SYSTEM 14
3.2.2 LIQUID ARGON CALORIMETER 16
3.2.3 THE SPACAL CALORIMETER 17
3.2.4 LUMINOSITY SYSTEM 20
3.3 THE TRIGGER 20
3.3.1 HI TRIGGER ARCHITECTURE 20
3.3.2 THE S3 TRIGGER 21
3.4 EVENT RECONSTRUCTION 22
3.4.1 TRACK RECONSTRUCTION 22
3.4.2 Z-VERTEX POSITION 23
3.4.3 SPACAL ELECTRON 23
3.5 RECONSTRUCTION OF KINEMATIC VARIABLES 24
3.5.1 ELECTRON METHOD 24
3.5.2 DOUBLE ANGLE METHOD 25
3.6 SPACAL CALIBRATION AND ALIGNMENT 25
3.6.1 SPACAL ENERGY CALIBRATION 25
3.6.2 SPACAL ALIGNMENT 26
BIBLIOGRAFISCHE INFORMATIONEN HTTP://D-NB.INFO/1013491874
DIGITALISIERT DURCH
IMAGE 2
VI CONTENTS
4 UNFOLDING 27
4.1 DETECTOR EFFECTS 28
4.1.1 EFFICIENCY 28
4.1.2 MIGRATION 30
4.2 REGULARIZED UNFOLDING 31
4.2.1 THE RESPONSE MATRIX 31
4.2.2 UNFOLDING AS AN INVERSION PROBLEM 32
4.2.3 REGULARIZATION 33
4.3 THE CURVATURE MEASURE 34
4.3.1 NOTIONS OF CURVATURE 34
4.3.2 UNIFORMITY CONDITIONS 37
4.3.3 BIN WISE MEASURES OF CURVATURE 38
4.4 ADJUSTMENT OF REGULARIZATION 40
4.4.1 THE L-CURVE METHOD 40
4.4.2 ALGEBRAIC METHOD 41
4.4.3 GLOBAL CORRELATION METHOD 43
4.4.4 COMPARISON OF REGULARIZATION LEVELS 45
4.5 THE CHOICE OF THE BIN GRID 46
4.5.1 DETECTOR RESOLUTION 46
4.5.2 EFFECTIVE DIMENSION 47
4.5.3 QUOTABLE AND NON-QUOTABLE BINS 47
4.5.4 THE DETECTOR LEVEL BIN GRID 48
4.5.5 TREATMENT OF LOW EFFICIENCY BINS 49
4.5.6 INTERNAL MAPPINGS 49
4.6 TREATMENT OF BACKGROUND SOURCES 49
4.7 BIN-BY-BIN UNFOLDING 50
4.7.1 DRAW BACKS OF BIN-BY-BIN UNFOLDING 50
4.7.2 GLOBAL CORRELATION METHOD AS CROSS CHECK FOR BIN-BY-BIN UN-
FOLDING 51
4.8 TREATMENT OF SYSTEMATIC UNCERTAINTIES 51
4.8.1 TREATMENT OF DATA AND BACKGROUND UNCERTAINTIES 52
4.8.2 TREATMENT OF UNCORRELATED MODEL UNCERTAINTIES 53
4.8.3 TREATMENT OF CORRELATED MODEL UNCERTAINTIES 54
4.8.4 REGULARIZATION UNCERTAINTY 55
5 CROSS SECTION DETERMINATION 57
5.1 THE MEASUREMENT PROCEDURE 57
5.1.1 BINNING 57
5.1.2 BACKGROUND SUBTRACTION 57
5.1.3 EFFICIENCY AND MIGRATION CORRECTION 58
5.1.4 RADIATIVE CORRECTIONS 58
5.1.5 CROSS SECTION DETERMINATION 59
5.2 CROSS SECTION UNCERTAINTIES 59
5.3 BIN CENTER CORRECTION 59
IMAGE 3
CONTENTS VII
6 DATA SAMPLE AND EVENT SELECTION 61
6.1 RUN SELECTION AND DATA LUMINOSITY 61
6.2 TRIGGER SELECTION 62
6.3 ANALYSIS LEVEL EVENT SELECTION 63
6.3.1 PHASE SPACE CUTS 63
6.3.2 Z-VERTEX CUT 63
6.3.3 THE E - P. CUT 64
6.3.4 BACKGROUND REDUCTION 65
6.3.5 THE QEDC CUT 68
7 THE MONTE CARLO MODELS 71
7.1 THE DJANGOH SAMPLE 71
7.1.1 THE GENERATOR SAMPLE 71
7.1.2 QCD REWEIGHTING 72
7.1.3 DJANGOH LUMINOSITY 72
7.2 THE PYTHIA SAMPLE 74
7.3 SIMULATION AND RECONSTRUCTION 74
7.4 CONTROL PLOTS OF RECONSTRUCTED VARIABLES 75
8 EFFICIENCY AND Z VERTEX CORRECTION 79
8.1 GENERAL APPROACH TO EFFICIENCY CORRECTION 79
8.1.1 WEIGHT FUNCTIONS 80
8.1.2 ESTIMATION OF SYSTEMATIC UNCERTAINTIES 81
8.2 DETERMINATION OF EFFICIENCIES 82
8.2.1 S3 TRIGGER EFFICIENCY 83
8.2.2 CIP EFFICIENCY 85
8.2.3 VERTEX EFFICIENCY 86
8.2.4 ECRA CUT EFFICIENCY 89
8.3 Z VERTEX REWEIGHTING 91
8.3.1 THE Z VERTEX WEIGHT FUNCTION 91
8.3.2 SYSTEMATIC UNCERTAINTY OF Z VERTEX REWEIGHTING 93
8.3.3 ESTIMATION OF Z VERTEX WEIGHTS 94
9 CALIBRATION AND ALIGNMENT TESTS 95
9.1 ELECTRON ENERGY SCALE AND RESOLUTION 95
9.2 ELECTRON POLAR ANGLE CALIBRATION AND RESOLUTION 96
10 UNFOLDING THE DATA 99
10.1 BIN GRID AND RESPONSE MATRIX 99
10.2 ADJUSTMENT OF THE REGULARIZATION 100
10.2.1 L CURVE ANALYSIS 100
10.2.2 ALGEBRAIC ANALYSIS 107
10.2.3 GLOBAL CORRELATION ANALYSIS 108
10.2.4 INTERPRETATION AND COMPARISON I LL
10.2.5 CHOICE OF R I LL
10.3 THE UNFOLDING RESULT 112
10.3.1 THE RESULT AND ITS STATISTICAL UNCERTAINTIES 112
10.3.2 BACKGROUND SYSTEMATICS 118
IMAGE 4
VIII CONTENTS
10.3.3 UNCORRELATED SYSTEMATICS 120
10.3.4 CORRELATED SYSTEMATICS 120
10.3.5 REGULARIZATION UNCERTAINTY 133
10.3.6 TOTAL UNCERTAINTIES 133
11 RADIATIVE CORRECTIONS 135
11.1 DETERMINATION OF RADIATIVE CORRECTION FACTORS 135
11.2 SYSTEMATIC UNCERTAINTIES FROM RADIATIVE CORRECTIONS 138
12 CROSS SECTIONS AND FO STRUCTURE FUNCTION 139
12.1 REDUCED CROSS SECTIONS 139
12.2 COMPARISON WITH BIN-BY-BIN METHOD 140
12.3 STRUCTURE FUNCTION F 2 140
13 CONCLUSION 151
A CROSS SECTIONS 153
BIBLIOGRAPHY 159
DANKSAGUNG 165
|
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| indexdate | 2024-07-10T00:00:04Z |
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| language | English |
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| spelling | Fischer, David J. Verfasser (DE-588)141201940 aut Inclusive neutral current ep cross sections with HERA II and two-dimensional unfolding vorgelegt von David-Johannes Fischer Hamburg DESY 2011 VIII, 165 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Hamburg, Univ., Diss., 2011 (DE-588)4113937-9 Hochschulschrift gnd-content DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=024167760&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Fischer, David J. Inclusive neutral current ep cross sections with HERA II and two-dimensional unfolding |
| subject_GND | (DE-588)4113937-9 |
| title | Inclusive neutral current ep cross sections with HERA II and two-dimensional unfolding |
| title_auth | Inclusive neutral current ep cross sections with HERA II and two-dimensional unfolding |
| title_exact_search | Inclusive neutral current ep cross sections with HERA II and two-dimensional unfolding |
| title_full | Inclusive neutral current ep cross sections with HERA II and two-dimensional unfolding vorgelegt von David-Johannes Fischer |
| title_fullStr | Inclusive neutral current ep cross sections with HERA II and two-dimensional unfolding vorgelegt von David-Johannes Fischer |
| title_full_unstemmed | Inclusive neutral current ep cross sections with HERA II and two-dimensional unfolding vorgelegt von David-Johannes Fischer |
| title_short | Inclusive neutral current ep cross sections with HERA II and two-dimensional unfolding |
| title_sort | inclusive neutral current ep cross sections with hera ii and two dimensional unfolding |
| topic_facet | Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=024167760&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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