Citation
Sun, Werner ManLi (2003) Observation of B > K<sup>0</sup><sub>S</sub>pi<sup>+</sup>pi<sup></sup> and B > K<sup>*</sup>(892)<sup>+</sup>pi<sup>+</sup> and measurement of the charge asymmetry in B > K<sup>*</sup>(892)<sup>+</sup>pi<sup>+</sup>. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechETD:etd05202003230218
Abstract
We report on a search for charmless hadronic B decays to the threebody final states K^{0}_{S}h^{+}pi^{+}, K^{+}h^{+}pi^{0}, and K^{0}_{S}h^{+}pi^{0} (h^{+} denotes a charged pion or kaon), using 9.12 fb^{1} of integrated luminosity produced at sqrt{s}=10.58 GeV and collected with the CLEO detector. We observe the decay B > K^{0}pi^{+}pi^{} with a branching fraction (50^{+10}_{9}+7)x10^{6} and the decay B > K^{*}(892)^{+}pi^{+} with a branching fraction (16^{+6}_{5}+2)x10^{6}, where the uncertainties are statistical and systematic, respectively. Both branching fractions are averages over CPconjugate states. We also search for a CPviolating asymmetry in the decay B > K^{*}(892)^{+}pi^{+}. We find A_{CP}(B > K^{*}(892)^{+}pi^{+})=0.26^{+0.33}_{0.34}^{+0.10}_{0.08}, giving an allowed interval of [0.31,0.78] at the 90% confidence level. These measurements are used to constrain fundamental parameters of the Standard Model.
Item Type:  Thesis (Dissertation (Ph.D.)) 

Subject Keywords:  CP violation; maximum likelihood; rare B decays 
Degree Grantor:  California Institute of Technology 
Division:  Physics, Mathematics and Astronomy 
Major Option:  Physics 
Thesis Availability:  Public (worldwide access) 
Research Advisor(s): 

Thesis Committee: 

Defense Date:  19 May 2003 
Author Email:  wsun (AT) post.harvard.edu 
Record Number:  CaltechETD:etd05202003230218 
Persistent URL:  http://resolver.caltech.edu/CaltechETD:etd05202003230218 
Default Usage Policy:  No commercial reproduction, distribution, display or performance rights in this work are provided. 
ID Code:  1889 
Collection:  CaltechTHESIS 
Deposited By:  Imported from ETDdb 
Deposited On:  21 May 2003 
Last Modified:  26 Dec 2012 02:43 
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