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dc.contributor.advisorClarke, Peteren
dc.contributor.advisorMuheim, Franzen
dc.contributor.authorCurrie, Robert Andrewen
dc.date.accessioned2014-11-18T15:18:15Z
dc.date.available2014-11-18T15:18:15Z
dc.date.issued2014-06-28
dc.identifier.urihttp://hdl.handle.net/1842/9669
dc.description.abstractThe LHCb experiment is an experiment based at the LHC in Geneva and is dedicated to the study of mesons containing bottom and charm quarks. One of the primary goals of the physics at LHCb is to measure CP-violating effects which lead to a dominance of matter over anti-matter in the universe. This thesis presents the measurement of the CP-violating phase Ø s which is one of the golden channels at LHCb. This phase is observed as the interference between mixing of B0s ↔ B-0s and decay of B0s → J/ψ K+K−. The results, based upon the 1.0 fb−1 dataset collected by LHCb during 2011, are: Ø s = 0.07±0.09±0.01 rad , ∆Γs = 0.100±0.016±0.002 ps−1 , Γs = 0.663±0.005±0.006 ps−1 . This analysis is also able to measure the mixing parameter ms = 17.71±0.10±0.01 ps−1. To improve upon this measurement the B0s → J/ψ K+K− analysis is combined with the B0s → J/ψ π+ π − decay channel to make the most accurate measurements to date of, Ø s = 0.01±0.07±0.01 rad, ∆Γs = 0.106±0.011±0.007 ps−1 and Γs = 0.661±0.004±0.006 ps−1. As an integral part of this work a comprehensive software suite known as RapidFit was developed, which is used by many other physicists and this is described.en
dc.contributor.sponsorScience and Technology Facilities Council (STFC)en
dc.language.isoen
dc.publisherThe University of Edinburghen
dc.relation.hasversionB. Wynne, R. Currie, P. Clarke and G. Cowan, “RapidFit Fitting Framework,” Developed internally within Edinburgh PPE group. [Online]. Available: {svn.cern.ch/reps/lhcbedinburgh/Code/Fitting/RapidFit/ trunk}en
dc.subjectCP-violationen
dc.subjectLarge Hadron Collideren
dc.subjectLHCben
dc.subjectparticle physicsen
dc.titleCP-violation in beautiful-strange oscillations at LHCben
dc.typeThesis or Dissertationen
dc.type.qualificationlevelDoctoralen
dc.type.qualificationnamePhD Doctor of Philosophyen


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