Observation of the decay B0 -> D0K+K- with the LHCb detector at CERN
Whitehead, M. (Mark) (2012) Observation of the decay B0 -> D0K+K- with the LHCb detector at CERN. PhD thesis, University of Warwick.
WRAP_THESIS_Whitehead-Mark_2012.pdf - Submitted Version
Download (27Mb) | Preview
Official URL: http://webcat.warwick.ac.uk/record=b2585482~S1
The first observation of the decay mode B0 -> D0K+K- is presented using 0.62 fb-1 of data collected by the LHCb detector in 2011. The branching fraction is measured with respect to the topologically similar decay mode, B0 -> D0π+π-. The ratio of branching fractions is measured to be B(B0 -> D0K+K-) / B(B0 -> D0π+π-) = 0.056 ± 0.011 ± 0.007, where the first uncertainty is statistical and the second is systematic. Using the world average value for the denominator yields B(B0 -> D0K+K-) = (4.7 ± 0.9 ± 0.6 ± 0.5) x 10-5, where the third uncertainty is from B(B0 -> D0π+π-). Secondly, evidence for the B0s -> D0K+K- decay mode is presented. The branching fraction ratio with respect to B0 -> D0K+K- is found to be B(B0s -> D0K+K-) / B(B0 -> D0K+K-) = 0.90 ± 0.27 ± 0.20, where the first uncertainty is statistical and the second is systematic.
|Item Type:||Thesis or Dissertation (PhD)|
|Subjects:||Q Science > QC Physics|
|Library of Congress Subject Headings (LCSH):||Hadrons -- Decay, CP violation (Nuclear physics), Large Hadron Collider (France and Switzerland)|
|Institution:||University of Warwick|
|Theses Department:||Department of Physics|
|Supervisor(s)/Advisor:||Gershon, T. J. ; Harrison, P. F. ; Kreps, Michal|
|Extent:||xv, 138 leaves : illustrations, charts|
Actions (login required)