© 2014

Observation of CP Violation in B± → DK± Decays


Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xix
  2. Paolo Gandini
    Pages 1-23
  3. Paolo Gandini
    Pages 25-53
  4. Paolo Gandini
    Pages 55-86
  5. Paolo Gandini
    Pages 87-122
  6. Paolo Gandini
    Pages 123-139
  7. Paolo Gandini
    Pages 141-156
  8. Paolo Gandini
    Pages 157-158
  9. Back Matter
    Pages 159-167

About this book


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.


CKM Matrix Flavour Physics LHCb Experiment Matter-antimatter Asymmetry in B Mesons Rare B Meson Decays Standard Model of the Weak Interaction Tests of CP Violation

Authors and affiliations

  1. 1.Particle PhysicsUniversity of OxfordOxfordUnited Kingdom

About the authors

Paolo Gandini is a particle physicist mainly interested in Flavour Physics. As a member of the LHCb collaboration at CERN, he completed a D.Phil in Particle Physics at the University of Oxford with a thesis on CP violation studies in charged B decays. He is currently based at CERN as a postdoctoral researcher for Syracuse University, NY.

Bibliographic information