Measurement of Time-Dependent $C P$ -Violating Asymmetries in $B^{0} \to K^{* 0} γ (K^{* 0} \to K_{S}^{0} π^{0})$ Decays

Publisher Website

8 November 2004

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

Vol. 93 (20) , 201801
https://doi.org/10.1103/physrevlett.93.201801

Abstract

We present a measurement of the time-dependent

C P

-violating asymmetries in

B^{0} \to K^{* 0} γ (K^{* 0} \to K_{S}^{0} π^{0})

decays based on

124 \times 10^{6}

Υ (4 S) \to B \bar{B}

decays collected with the BABAR detector at the PEP-II asymmetric-energy

B

Factory at the Stanford Linear Accelerator Center. In a sample containing

105 \pm 14

signal decays, we measure

S_{K^{*} γ} = 0.25 \pm 0.63 \pm 0.14

and

C_{K^{*} γ} = - 0.57 \pm 0.32 \pm 0.09

, where the first error is statistical and the second, systematic.

Keywords

All Related Versions

Version 1, 2004-05-31, ArXiv

This publication has 11 references indexed in Scilit:

Measurements of $C P$ -Violating Asymmetries in $B^{0} \to K_{s}^{0} π^{0}$ Decays
Physical Review Letters, 2004
Measurement of the $\vec{B} K^{*} γ$ branching fractions and asymmetries
Physical Review D, 2004
Study of time-dependentCP-violating asymmetries and flavor oscillations in neutralBdecays at the $Υ (4 S)$
Physical Review D, 2002
Measurement of $B \to K^{*} γ$ Branching Fractions and Charge Asymmetries
Physical Review Letters, 2002
Observation of Large $CP$ Violation in the Neutral $B$ Meson System
Physical Review Letters, 2001
Observation of $CP$ Violation in the $B^{0}$ Meson System
Physical Review Letters, 2001
Study of Exclusive Radiative $B$ Meson Decays
Physical Review Letters, 2000
Mixing-Induced $CP$ Asymmetries in Radiative $B$ Decays in and beyond the Standard Model
Physical Review Letters, 1997
CP-Violation in the Renormalizable Theory of Weak Interaction
Progress of Theoretical Physics, 1973
Unitary Symmetry and Leptonic Decays
Physical Review Letters, 1963