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Record Nr. |
UNINA9910300391903321 |
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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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Pubbl/distr/stampa |
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Cham : , : Springer International Publishing : , : Imprint : Springer, , 2014 |
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ISBN |
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Edizione |
[1st ed. 2014.] |
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Descrizione fisica |
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1 online resource (179 p.) |
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Collana |
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Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5053 |
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Disciplina |
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Soggetti |
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Elementary particles (Physics) |
Quantum field theory |
String theory |
Elementary Particles, Quantum Field Theory |
Quantum Field Theories, String Theory |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Doctoral Thesis accepted by the University of Oxford, UK. |
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Nota di bibliografia |
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Includes bibliographical references. |
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Nota di contenuto |
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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. |
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Sommario/riassunto |
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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 |
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