Measurement of relative branching fractions for $$D^{0}$$ meson Cabibbo suppressed hadronic decays, from the CDF secondary vertex trigger sample at the Tevatron collider.

Thesis/Dissertation · Wed Jan 01 04:00:00 EST 2003

DOI:https://doi.org/10.2172/1369260· OSTI ID:1369260

De Cecco, Sandro ^[1]

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1. Univ. of Rome (Italy)

The analysis presented in this thesis are first strong evidences for both the new CDF Secondary Vertex Trigger ability in the on-line selection of heavy flavour hadronic decays in $$p\bar{p}$$ interactions and for the $CDF$ potentials, in particular on charm physics. The result of the relative BR measurements for $D^0$ mesons two-body decays presented in this thesis is at this time competitive with best single measurement obtained by the CLEO experiment. Analysis and reconstruction tools developed for charm mesons are tuned and validated at a very refined level and constitute the framework for B mesons analysis in hadronic final states like $$B_{s} → D_{s}\pi$$. As prospected in final sections, competitive measurements and limits on $D^0$ mixing and direct CP violation in $D^0$ mesons decays will be possible with the luminosity integrated in the future of $CDF$ operations. Also, studies on particle ID with $dE/dx$ and CDF Time-of-Flight, are presented and their validat ion on high statistic sample of charmed mesons will allow a precise knowledge of $CDF$ PID global performance. This will be of particular relevance for flavour tagging techniques and especially those based on Kaon tagging will benefit of this study. This point will be crucial, as underlined in final section for $$B_s$$ oscillation mixing frequency measurement at $CDF$.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1369260
• Report Number(s): FERMILAB-THESIS--2003-55; 1105132
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
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