Measurement of polarization and triple-product correlations in B ---> phi K* decays - INSPIRE

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Measurement of polarization and triple-product correlations in B ---> phi K* decays

Belle

Collaboration

•

K.-F. Chen
(
- Taiwan, Natl. Taiwan U.
)

Mar, 2005

9 pages

Published in:

Phys.Rev.Lett. 94 (2005) 221804

e-Print:

hep-ex/0503013 [hep-ex]

DOI:

10.1103/PhysRevLett.94.221804

PDG:

\mathit A_{CP}({{\mathit B}^{+}}

\rightarrow

{{\mathit \phi}}{{\mathit K}^{*}{(892)}^{+}}

Report number:

BELLE-PRERPINT-2005-7

Experiments:

KEK-BF-BELLE

View in:

ADS Abstract Service

reference search146 citations

Citations per year

Abstract:

We present measurements of decay amplitudes and triple-product correlations in B -> phi K^* decays based on 253 fb^-1 of data recorded at the Upsilon(4S) resonance with the Belle detector at the KEKB e^+ e^- storage ring. The decay amplitudes for the three different helicity states are determined from the angular distributions of final state particles. The longitudinal polarization amplitudes are found to be 0.45 +- 0.05 +- 0.02 for B^0 -> phi K^{*0} and 0.52 +- 0.08 +- 0.03 for B^+ -> phi K^{*+} decays. CP- and T-odd CP-violating triple-product asymmetries are measured to be consistent with zero.

13.25.Hw
12.39.St
11.30.Er
B mesons
meson hadronic decay
CP invariance
electron positron: colliding beams
electron positron: annihilation
Upsilon(10570): electroproduction
B: pair production

References(15)

Figures(0)

Measurement of branching fractions and polarization in B ---> phi K(*) decays

Belle

Collaboration

•

K.F. Chen
(
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)

et al.

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•
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BaBar

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•
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