Constraining supersymmetric models using Higgs physics, precision observables and direct searches:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Hamburg
DESY
2014
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| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XVI, 209 S. Ill., graph. Darst. |
Internformat
MARC
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| 245 | 1 | 0 | |a Constraining supersymmetric models using Higgs physics, precision observables and direct searches |c vorgelegt von Lisa Zeune |
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Datensatz im Suchindex
| _version_ | 1804152720324558848 |
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| adam_text | CONTENTS
1 INTRODUCTION 1
2 THE STANDARD MODEL AND SUPERSYMMETRIC EXTENSIONS OF IT 5
2.1 THE STANDARD MODEL 5
2.1.1 SYMMETRIES 6
2.1.2 ELECTROWEAK THEORY AND THE BEH MECHANISM IN THE SM 7
2.1.3 FERMION SECTOR 8
2.1.4 GAUGE FIXING, GHOST SECTOR 9
2.1.5 FULL SM LAGRANGIAN 10
2.1.6 SHORTCOMINGS OF THE SM 10
2.2 THE MINIMAL SUPERSYMMETRIC STANDARD MODEL 12
2.2.1 CONCEPTS OF THE SUPERSYMMETRIC MODELS 12
2.2.2 THE MSSM SUPERPOTENTIAL 14
2.2.3 R-PARITY 15
2.2.4 SUSY BREAKING 16
2.2.5 CONSTRAINED MODELS: CMSSM AND PMSSM 16
2.2.6 SFERMION SECTOR 18
2.2.7 CHARGINO SECTOR 19
2.2.8 NEUTRALINO SECTOR 19
2.2.9 GLUINO SECTOR 20
2.2.10 ELECTROWEAK SYMMETRY BREAKING AND THE MSSM HIGGS SECTOR ... 20
2.3 THE NEXT TO MINIMAL SUPERSYMMETRIC STANDARD MODEL 23
2.3.1 MOTIVATION 23
2.3.2 THE NMSSM SUPERPOTENTIAL AND SOFT BREAKING TERMS 23
2.3.3 HIGGS SECTOR OF THE NMSSM 24
2.3.4 NEUTRALINO SECTOR OF THE NMSSM 25
2.3.5 MSSM AND DECOUPLING LIMIT 26
3 PERTURBATIVE CALCULATIONS 27
3.1 INTRODUCTION 27
3.2 THE CONCEPTS OF REGULARIZATION AND RENORMALIZATION 27
3.2.1 ON-SHELL RENORMALIZATION SCHEME 29
3.2.2 SELF-ENERGIES 30
XIII
HTTP://D-NB.INFO/1069016594
XIV CONTENTS
3.2.3 MS RENORMALIZATION SCHEME, RENORMALIZATION GROUP EQUATIONS AND
IMPLICATIONS FOR QCD 31
4 EXPERIMENTED STATUS 33
4.1 COLLIDER EXPERIMENTS 33
4.2 EXPERIMENTAL RESULTS 36
4.2.1 DISCOVERY OF A HIGGS BOSON 36
4.2.2 SEARCHES FOR SUSY HIGGS BOSONS 38
4.2.3 DIRECT SUSY SEARCHES 40
4.2.4 PRECISION MEASUREMENTS: MW AND M
T
40
4.2.5 5-PHYSICS OBSERVABLES AND
(G
* 2)
M
42
5 THE W BOSON MASS IN THE SM, THE MSSM AND THE NMSSM 43
5.1 INTRODUCTION 43
5.2 DETERMINATION OF THE W BOSON MASS 46
5.3 CALCULATION OF AR 48
5.3.1 ONE-LOOP FORMULA FOR AR 48
5.3.2 ONE-LOOP AR IN THE SM 49
5.3.3 ONE-LOOP AR IN THE MSSM AND THE NMSSM 50
5.3.4 INCORPORATION OF HIGHER-ORDER CORRECTIONS TO AR 53
5.4 TECHNICAL ASPECTS 58
5.4.1 FRAMEWORK FOR THE AR CALCULATION 58
5.4.2 FRAMEWORK FOR THE NUMERICAL ANALYSIS 59
5.4.3 CONSTRAINTS ON THE PARAMETER SPACE 60
5.4.4 FEYNARTS MODEL FILE FOR THE NMSSM 62
5.5 THEORETICAL UNCERTAINTIES IN THE MW PREDICTION 64
5.6 RESULT FOR MW IN THE SM 65
5.7 RESULT FOR MW IN THE MSSM 66
5.7.1 MSSM PARAMETER SCAN: SCAN RANGES AND CONSTRAINTS 66
5.7.2 RESULTS OF THE SCAN AND IMPACT OF LHC RESULTS ON
M
W
IN THE MSSM 68
5.7.3 DISCUSSION OF FUTURE SCENARIOS 76
5.7.4 DEPENDENCE OF THE MW PREDICTION ON COMPLEX PHASES 79
5.8 RESULTS FOR THE MW PREDICTION IN THE NMSSM 82
5.8.1 SFERMION SECTOR ONE-LOOP CONTRIBUTIONS 82
5.8.2 EFFECT OF SUSY TWO-LOOP CORRECTIONS 88
5.8.3 NMSSM HIGGS SECTOR CONTRIBUTIONS 90
5.8.4 NEUTRALINO SECTOR CONTRIBUTIONS 97
5.9 SUMMARY 104
6 THE DIPHOTON DECAY CHANNEL IN THE MSSM AND THE NMSSM 107
6.1 INTRODUCTION 107
6.2 FRAMEWORK OF OUR ANALYSIS 109
6.2.1 GENERAL CONSIDERATIONS 109
6.2.2 CALCULATIONAL FRAMEWORK 110
CONTENTS XV
6.2.3 CONSTRAINTS ON THE PARAMETER SPACE ILL
6.3 NUMERICAL ANALYSIS 113
6.3.1 DECAYS OF CP-EVEN HIGGS BOSONS IN THE MSSM 113
6.3.2 DECAYS OF CP-EVEN HIGGS BOSONS IN THE NMSSM 119
6.4 SUMMARY 126
7 FITTING THE MSSM TO THE OBSERVED HIGGS SIGNAL 129
7.1 MOTIVATION 129
7.2 FRAMEWORK FOR OUR ANALYSIS 131
7.2.1 PMSSM PARAMETER SCANS 131
7.2.2 CONSTRAINTS ON THE PARAMETER SPACE 133
7.2.3 X
2
FITS 133
7.3 RESULTS 138
7.4 SUMMARY 160
8 CONSTRAINING SUSY SCENARIOS USING SIMPLIFIED MODELS 163
8.1 INTRODUCTION 163
8.2 METHODOLOGY 165
8.2.1 THE TRADITIONAL RECASTING APPROACH 165
8.2.2 A NEW APPROACH TO CALCULATE THE VISIBLE CROSS SECTION 166
8.3 FUNCTIONALITY OF THE PROGRAM FASTLIM 168
8.3.1 THE CALCULATIONAL PROCEDURE 168
8.3.2 NOMENCLATURE OF THE EVENT TOPOLOGIES 169
8.3.3 FURTHER APPROXIMATIONS 170
8.4 FASTLIM VERSION 1.0 172
8.4.1 THE AVAILABLE ANALYSES 172
8.4.2 THE IMPLEMENTED EVENT TOPOLOGIES 172
8.5 CONSTRAINTS FROM DIRECT SEARCHES ON NATURAL SUSY MODELS 175
8.6 SUMMARY AND FUTURE PLANS 183
9 CONCLUSIONS 185
|
| any_adam_object | 1 |
| author | Zeune, L. |
| author_GND | (DE-588)106122208X |
| author_facet | Zeune, L. |
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| dewey-full | 530.143 |
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| dewey-ones | 530 - Physics |
| dewey-raw | 530.143 |
| dewey-search | 530.143 |
| dewey-sort | 3530.143 |
| dewey-tens | 530 - Physics |
| discipline | Physik |
| format | Thesis Book |
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| spelling | Zeune, L. Verfasser (DE-588)106122208X aut Constraining supersymmetric models using Higgs physics, precision observables and direct searches vorgelegt von Lisa Zeune Hamburg DESY 2014 XVI, 209 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Hamburg, Univ., Diss., 2014 Zsfassungen in dt. und engl. Sprache (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=027641391&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Zeune, L. Constraining supersymmetric models using Higgs physics, precision observables and direct searches |
| subject_GND | (DE-588)4113937-9 |
| title | Constraining supersymmetric models using Higgs physics, precision observables and direct searches |
| title_auth | Constraining supersymmetric models using Higgs physics, precision observables and direct searches |
| title_exact_search | Constraining supersymmetric models using Higgs physics, precision observables and direct searches |
| title_full | Constraining supersymmetric models using Higgs physics, precision observables and direct searches vorgelegt von Lisa Zeune |
| title_fullStr | Constraining supersymmetric models using Higgs physics, precision observables and direct searches vorgelegt von Lisa Zeune |
| title_full_unstemmed | Constraining supersymmetric models using Higgs physics, precision observables and direct searches vorgelegt von Lisa Zeune |
| title_short | Constraining supersymmetric models using Higgs physics, precision observables and direct searches |
| title_sort | constraining supersymmetric models using higgs physics precision observables and direct searches |
| topic_facet | Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027641391&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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