Measurement of the $B^{+} {/ B}^{0}$ production ratio from the $Υ (4 S)$ meson using $B^{+} \to J / ψ K^{+}$ and $B^{0} \to J / ψ K_{S}^{0}$ decays

Authors:

BAB. Aubert
B. Aubert
RBR. Barate
R. Barate
DBD. Boutigny
D. Boutigny
FCF. Couderc
F. Couderc
AHA. Hicheur
A. Hicheur
YKY. Karyotakis
Y. Karyotakis
JLJ. P. Lees
J. P. Lees
VTV. Tisserand
V. Tisserand
AZA. Zghiche
A. Zghiche
APA. Palano
A. Palano
APA. Pompili
A. Pompili
JCJ. C. Chen
J. C. Chen

Publisher website

2 April 2004

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 69 (7) , 071101
DOI:10.1103/physrevd.69.071101

Abstract

We report a measurement of the production ratio of charged and neutral B mesons from

Υ (4 S)

decays based on the ratio of efficiency-corrected yields for the charmonium modes

J / ψ K^{+}

and

J / ψ K_{s}^{0}

with 81.9

{fb}^{- 1}

of data collected with the BABAR detector on the

Υ (4 S)

resonance at 10.580 GeV. We find a value of

1.006 \pm 0.036 (stat) \pm 0.031 (syst)

for the ratio

R^{+ / 0} = Γ (Υ (4 S) \to B^{+} B^{-}) / Γ (Υ (4 S) \to B^{0} B^{0}) .

Keywords

All Related Versions

Version 1, 2004-01-17, ArXiv

This publication has 13 references indexed in Scilit:

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