Dalitz Plot Analysis of $B^0_d \to K+ \pi^- \pi^0$ Decays

Yu, Zhitang

Stanford Linear Accelerator Center

关键词: 43 Particle Accelerators;    Stanford Linear Accelerator Center Experiment-Hep,Hepex;    Decay;    Experiment-Hep,Hepex;    Dalitz Plot;   

DOI  :  10.2172/881963
RP-ID  :  SLAC-R-815
RP-ID  :  AC02-76SF00515
RP-ID  :  881963

美国|英语

来源: UNT Digital Library

【 摘 要 】

This thesis describes a Dalitz plot analysis of B{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0} decays. The data sample comprises 213 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at the Stanford Linear Accelerator Center in California (SLAC). Preliminary results are presented for measurements of the inclusive branching fraction, quasi-two-body fractions and CP-violating charge asymmetries for intermediate states including K*(892){sup +}{pi}{sup -} and {rho}(770){sup -}K{sup +}. Observations of B{sup 0} decays to the K{pi} S-wave intermediate states, K*{sub 0}(1430){sup +}{pi}{sup -} and K*{sub 0}(1430){sup 0}{pi}{sup 0}, are reported. Evidence of the decay B{sup 0} {yields} K*(892){sup 0}{pi}{sup 0} is seen. We set upper limits at 90% confidence level on branching fractions of the nonresonant and other less significant intermediate states.