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Observation of the decay B0 -> D0K+K- with the LHCb detector at CERN
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Whitehead, M. (Mark) (2012) Observation of the decay B0 -> D0K+K- with the LHCb detector at CERN. PhD thesis, University of Warwick.
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WRAP_THESIS_Whitehead-Mark_2012.pdf - Submitted Version Download (27Mb) | Preview |
Official URL: http://webcat.warwick.ac.uk/record=b2585482~S1
Abstract
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 (PhD) | ||||
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Subjects: | Q Science > QC Physics | ||||
Library of Congress Subject Headings (LCSH): | Hadrons -- Decay, CP violation (Nuclear physics), Large Hadron Collider (France and Switzerland) | ||||
Official Date: | June 2012 | ||||
Dates: |
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Institution: | University of Warwick | ||||
Theses Department: | Department of Physics | ||||
Thesis Type: | PhD | ||||
Publication Status: | Unpublished | ||||
Supervisor(s)/Advisor: | Gershon, T. J. ; Harrison, P. F. ; Kreps, Michal | ||||
Extent: | xv, 138 leaves : illustrations, charts | ||||
Language: | eng |
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