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 ¿ ¿-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.
| Autorius: | Paolo Gandini |
| Serija: | Springer Theses |
| Leidėjas: | Springer Nature Switzerland |
| Išleidimo metai: | 2016 |
| Knygos puslapių skaičius: | 188 |
| ISBN-10: | 3319376853 |
| ISBN-13: | 9783319376851 |
| Formatas: | Knyga minkštu viršeliu |
| Kalba: | Anglų |
| Žanras: | Particle and high-energy physics |
Parašykite atsiliepimą apie „Observation of CP Violation in B± ¿ DK± Decays“
