| Type of Document |
Dissertation |
| Author |
Samuel, Alexander
|
| URN |
etd-05292006-225405 |
| Persistent URL |
http://resolver.caltech.edu/CaltechETD:etd-05292006-225405 |
| Title |
Measurement of branching fractions and mass sepctra in B to K pi pi gamma decays |
| Degree |
PhD |
| Option |
Physics |
| Advisory Committee |
| Advisor Name |
Title |
| Frank Porter |
Committee Chair |
| Alan Jay Weinstein |
Committee Member |
| David Hitlin |
Committee Member |
| Mark B. Wise |
Committee Member |
|
| Keywords |
- rare B decays
- radiative penguin decays
- BaBar
|
| Date of Defense |
2005-06-13 |
| Availability |
unrestricted |
Abstract
We present a measurement of the branching fractions of the exclusive radiative penguin processes B to K pi pi gamma in a sample of 232 million e+ e- to B Bbar decays recorded by the BaBar detector at the PEP-II asymmetric-energy storage ring. We reconstruct four final states: K+ pi- pi+, K+ pi- pi0, Ks pi+ pi-, and Ks pi+ pi0, where Ks to pi+ pi-, in the range m(K pi pi) < 1.8 GeV/c^2. We measure the branching fractions BR(B+ to K+ pi- pi+ gamma) = (2.95 +- 0.13 (stat.) +- 0.19 (syst.)) x 10^-5, BR(B0 to K+ pi- pi0 gamma) = (4.07 +- 0.22 (stat.) +- 0.31 (syst.)) x 10^-5, BR(B0 to K0 pi+ pi- gamma) = (1.85 +- 0.21 (stat.) +- 0.12 (syst.)) x 10^-5, and BR(B+ to K0 pi+ pi0 gamma) = (4.56 +- 0.42 (stat.) +- 0.30 (syst.)) x 10^-5.
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| Files |
| Filename |
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Approximate Download Time
(Hours:Minutes:Seconds)
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56K Modem |
ISDN (64 Kb) |
ISDN (128 Kb) |
Higher-speed Access |
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thesis.pdf |
3.31 Mb |
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