Observation of CP Violation in B± → DK± Decays
Seiten
2016
|
1. Softcover reprint of the original 1st ed. 2014
Springer International Publishing (Verlag)
978-3-319-37685-1 (ISBN)
Springer International Publishing (Verlag)
978-3-319-37685-1 (ISBN)
This book presents the results of an original high-energy physics analysis. The author describes the first observation of the rare decay, B- DK-, D pi-K+ and the first observation of direct CP violation in this B decay.
CP violation is a well-established phenomenon in particle physics, but until 2001 it was only observed in kaons. In the last decade, several matter-antimatter asymmetries have been observed in neutral B mesons in line with the expectations of the Standard Model of the weak interaction. Direct CP violation is also expected in the decay rates of charged B+ mesons versus that of B- mesons, though the greatest effects are present in a decay that occurs just twice in 10 million decays. Such rarity requires huge samples to study and this is exactly what the LHC, and its dedicated B-physics experiment LHCb provide. This thesis presents an analysis of the first two years of LHCb data. The author describes the first observation of the rare decay, B- DK-, D pi-K+ and the first observation of direct CP violation in this B decay. The work constitutes essential information on the experiment's measurement of a fundamental parameter of the theory and stands as a benchmark against which subsequent analyses of this type will be compared.
CP violation is a well-established phenomenon in particle physics, but until 2001 it was only observed in kaons. In the last decade, several matter-antimatter asymmetries have been observed in neutral B mesons in line with the expectations of the Standard Model of the weak interaction. Direct CP violation is also expected in the decay rates of charged B+ mesons versus that of B- mesons, though the greatest effects are present in a decay that occurs just twice in 10 million decays. Such rarity requires huge samples to study and this is exactly what the LHC, and its dedicated B-physics experiment LHCb provide. This thesis presents an analysis of the first two years of LHCb data. The author describes the first observation of the rare decay, B- DK-, D pi-K+ and the first observation of direct CP violation in this B decay. The work constitutes essential information on the experiment's measurement of a fundamental parameter of the theory and stands as a benchmark against which subsequent analyses of this type will be compared.
Paolo Gandini is a particle physicist mainly interested in Flavour Physics. As a member of the LHCb collaboration at CERN, he completed a D.Phil in Particle Physics at the University of Oxford with a thesis on CP violation studies in charged B decays. He is currently based at CERN as a postdoctoral researcher for Syracuse University, NY.
Introduction.- CP violation in the SM and the CKM angle Gamma.- The LHCb experiment at the LHC.- Reconstruction and selection.- Background studies.- The simultaneous fit.- Results.- Conclusions.- Distributions of the BDT input variables.- Validation of the ApT variable.- Histograms of systematic errors.- Bibliography.
| Erscheinungsdatum | 29.08.2016 |
|---|---|
| Reihe/Serie | Springer Theses |
| Zusatzinfo | XIX, 167 p. 127 illus., 115 illus. in color. |
| Verlagsort | Cham |
| Sprache | englisch |
| Maße | 155 x 235 mm |
| Themenwelt | Naturwissenschaften ► Physik / Astronomie ► Atom- / Kern- / Molekularphysik |
| Naturwissenschaften ► Physik / Astronomie ► Hochenergiephysik / Teilchenphysik | |
| Naturwissenschaften ► Physik / Astronomie ► Quantenphysik | |
| Naturwissenschaften ► Physik / Astronomie ► Theoretische Physik | |
| Naturwissenschaften ► Physik / Astronomie ► Thermodynamik | |
| Schlagworte | CKM Matrix • Elementary Particles, Quantum Field Theory • Flavour Physics • LHCb Experiment • Matter-antimatter Asymmetry in B Mesons • Physics and Astronomy • Quantum Field Theories, String Theory • Quantum physics (quantum mechanics and quantum fie • Rare B Meson Decays • Standard Model of the Weak Interaction • Statistical Physics • Tests of CP Violation |
| ISBN-10 | 3-319-37685-3 / 3319376853 |
| ISBN-13 | 978-3-319-37685-1 / 9783319376851 |
| Zustand | Neuware |
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