Flores-Castillo, Luis Roberto
(2004)
Measurement of exclusive B lifetimes in the modes B+ to J/psi K+, B+ to J/psi K*+, B0 to J/psi K*, and B0 to J/psi K0 short, and measurement of the B+/B0 lifetime ratio.
Doctoral Dissertation, University of Pittsburgh.
(Unpublished)
Abstract
This thesis presents the results from the measurement of the lifetimes of charged and neutral B mesons in four final statesin proton-antiproton collisions at a center-of-mass energy of 1.96 TeV using 195 inverse-picobarns of data collected with the CDF detector at the Fermilab Tevatron Collider. The proper decay length is estimated using the J/psi vertex in all cases to reduce the systematics in the ratio.For the Bu meson, the mean life (ctau) is determined to be 499 +- 12 +- 6 microns; for the neutral B meson (Bd), 446+-15+-8 microns. In both measurements, the first error is statistical and the second is systematic. The ratio between Bu and Bd meson lifetimes is found to be 1.119 +- 0.046(stat) +- 0.014(syst).
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Details
Item Type: |
University of Pittsburgh ETD
|
Status: |
Unpublished |
Creators/Authors: |
Creators | Email | Pitt Username | ORCID |
---|
Flores-Castillo, Luis Roberto | lrfst7@pitt.edu | LRFST7 | |
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Date: |
23 September 2004 |
Date Type: |
Completion |
Defense Date: |
13 July 2004 |
Approval Date: |
23 September 2004 |
Submission Date: |
13 August 2004 |
Access Restriction: |
No restriction; Release the ETD for access worldwide immediately. |
Institution: |
University of Pittsburgh |
Schools and Programs: |
Dietrich School of Arts and Sciences > Physics |
Degree: |
PhD - Doctor of Philosophy |
Thesis Type: |
Doctoral Dissertation |
Refereed: |
Yes |
Uncontrolled Keywords: |
B lifetimes; CDF; Fermilab; Heavy Quark Expansion; High Energy Physics; lifetime ratio |
Other ID: |
http://etd.library.pitt.edu/ETD/available/etd-08132004-145732/, etd-08132004-145732 |
Date Deposited: |
10 Nov 2011 19:59 |
Last Modified: |
15 Nov 2016 13:49 |
URI: |
http://d-scholarship.pitt.edu/id/eprint/9077 |
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