Gaur, Bakul: Measurement of the reference channel B+/- -> J/psi K+/- for the rare decay Bs -> mu+mu- with the ATLAS experiment. 2013
Inhalt
- Abstract
- Zusammenfassung
- Contents
- 1 Introduction
- 2 The ATLAS Detector
- 3 Rare Decays of B Mesons
- 3.1 Standard Model
- 3.2 CKM Matrix and the Unitary Triangle
- 3.3 Flavor Changing Neutral Currents
- 3.4 Bsmumu Branching Fraction
- 4 Analysis Strategy for the Bsmumu Measurement
- 5 Measurement of Bpm Yield
- 5.1 Data Samples
- 5.2 Event Reconstruction
- 5.3 Event Selection
- 5.3.1 Baseline Cuts
- 5.3.2 Multivariate Selection
- 5.3.3 Monte Carlo Re-weighting
- 5.3.4 Cut Optimization
- 5.4 Bpm Invariant Mass Spectrum
- 5.4.1 Invariant Mass Resolution Dependence on Pseudorapidity
- 5.4.2 Comparison of Data and Monte Carlo
- 5.5 Bpm Yield Extraction
- 5.5.1 Construction of the Likelihood
- 5.5.1.1 Signal Model
- 5.5.1.2 Model for Combinatorial Background
- 5.5.1.3 Model for Partially Reconstructed Decays Background
- 5.5.1.4 Model for BpmJpsipipm Background
- 5.5.1.5 Construction of Mass Uncertainty PDFs
- 5.5.2 Final Fit to Collision Data
- 5.5.3 Computation of Bpm Yield
- 5.6 Summary of Results
- 6 Summary of the Bsmumu Analysis
- A Discriminating Variables
- B Variation of Mass Resolution
- C Multi-bin Results
- List of Abbreviations
- List of Figures
- List of Tables
- Bibliography
- Acknowledgements