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Autore: |
Gandini Paolo
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Titolo: |
Observation of CP Violation in B± DK± Decays / / by Paolo Gandini
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Pubblicazione: | Cham : , : Springer International Publishing : , : Imprint : Springer, , 2014 |
Edizione: | 1st ed. 2014. |
Descrizione fisica: | 1 online resource (179 p.) |
Disciplina: | 530 |
Soggetto topico: | Elementary particles (Physics) |
Quantum field theory | |
String theory | |
Elementary Particles, Quantum Field Theory | |
Quantum Field Theories, String Theory | |
Note generali: | Doctoral Thesis accepted by the University of Oxford, UK. |
Nota di bibliografia: | Includes bibliographical references. |
Nota di contenuto: | Introduction -- CP violation in the SM and the CKM angle γ -- 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. |
Sommario/riassunto: | 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 π-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. |
Titolo autorizzato: | Observation of CP Violation in B± → DK± Decays ![]() |
ISBN: | 3-319-01029-8 |
Formato: | Materiale a stampa ![]() |
Livello bibliografico | Monografia |
Lingua di pubblicazione: | Inglese |
Record Nr.: | 9910300391903321 |
Lo trovi qui: | Univ. Federico II |
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