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Title: Study of Rare B-Meson Decays Related to the CPObservable sin(2beta+gamma) at the BABAR Experiment

Abstract

This study reports the observation of the decays B 0→D$$*+\atop{s}$$π - and B 0→D (*)-K + in a sample of 230 x 10 6 Y(4S) → B$$\bar{B}$$ events collected with the BABAR detector at the PEP-II asymmetric-energy e +e - storage ring, located at the Stanford Linear Accelerator Center. The branching fractions β(B 0 → D$$+\atop{S}$$π -) = (1.3 ± 0.3 (stat) ± 0.2 (syst)) x 10 -5, β(B 0 → D$$+\atop{S}$$K +) = (2.5 ± 0.4 (stat) ± 0.4 (syst)) x 10 -5, β(B 0→D$$*+\atop{s}$$π -) = (2.8 ± 0.6 (stat) ± 0.5 (syst)) x 10 -5, and β(B 0→D (*)-K +) = (2.0 ± 0.5 (stat) ± 0.4 (syst)) x 10 -5 are measured. The significance of the measurements to differ from zero are 5, 9, 6, and 5 standard deviations, respectively. This is a first observation of the decaysB +→D$$*+\atop{s}$$π - and B 0→D (*)-K +. These results may potentially be useful in determining the CP asymmetry parameter sin(2β + γ) in the decays B 0→D$$*+\atop{s}$$π -.

Authors:
 [1]
  1. Univ. of California, Berkeley, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
915388
Report Number(s):
SLAC-R-845
TRN: US0804976
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Thesis/Dissertation
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; MESONS; DECAY; STANFORD LINEAR ACCELERATOR CENTER; Experiment-HEP; HEPEX; HEPPH

Citation Formats

Orimoto, Toyoko Jennifer. Study of Rare B-Meson Decays Related to the CPObservable sin(2beta+gamma) at the BABAR Experiment. United States: N. p., 2006. Web. doi:10.2172/915388.
Orimoto, Toyoko Jennifer. Study of Rare B-Meson Decays Related to the CPObservable sin(2beta+gamma) at the BABAR Experiment. United States. doi:10.2172/915388.
Orimoto, Toyoko Jennifer. Sun . "Study of Rare B-Meson Decays Related to the CPObservable sin(2beta+gamma) at the BABAR Experiment". United States. doi:10.2172/915388. https://www.osti.gov/servlets/purl/915388.
@article{osti_915388,
title = {Study of Rare B-Meson Decays Related to the CPObservable sin(2beta+gamma) at the BABAR Experiment},
author = {Orimoto, Toyoko Jennifer},
abstractNote = {This study reports the observation of the decays B0→D$*+\atop{s}$π- and B0→D(*)-K+ in a sample of 230 x 106 Y(4S) → B$\bar{B}$ events collected with the BABAR detector at the PEP-II asymmetric-energy e+e- storage ring, located at the Stanford Linear Accelerator Center. The branching fractions β(B0 → D$+\atop{S}$π-) = (1.3 ± 0.3 (stat) ± 0.2 (syst)) x 10-5, β(B0 → D$+\atop{S}$K+) = (2.5 ± 0.4 (stat) ± 0.4 (syst)) x 10-5, β(B0→D$*+\atop{s}$π-) = (2.8 ± 0.6 (stat) ± 0.5 (syst)) x 10-5, and β(B0→D(*)-K+) = (2.0 ± 0.5 (stat) ± 0.4 (syst)) x 10-5 are measured. The significance of the measurements to differ from zero are 5, 9, 6, and 5 standard deviations, respectively. This is a first observation of the decaysB+→D$*+\atop{s}$π- and B0→D(*)-K+. These results may potentially be useful in determining the CP asymmetry parameter sin(2β + γ) in the decays B0→D$*+\atop{s}$π-.},
doi = {10.2172/915388},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}

Thesis/Dissertation:
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