Observation of CP Violation in B± → DK± Decays
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 vi...
| Published in: | Springer eBooks |
|---|---|
| Main Author: | |
| Corporate Author: | |
| Format: | eBook |
| Language: | English |
| Published: |
Cham :
Springer International Publishing : Imprint: Springer,
2014.
|
| Series: | Springer Theses, Recognizing Outstanding Ph.D. Research,
|
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1007/978-3-319-01029-8 Перейти в каталог НБ ТГУ |
| Summary: | 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 consitutes 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. |
|---|---|
| Physical Description: | XIX, 167 p. 127 illus., 115 illus. in color. online resource. |
| ISBN: | 9783319010298 |
| ISSN: | 2190-5053 |