Measurement of polarization amplitudes and CP asymmetries in $B^0 \to \phi K^*(892)^0$ - INSPIRE

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Measurement of polarization amplitudes and CP asymmetries in $B^0 \to \phi K^*(892)^0$

LHCb

Collaboration

Mar 12, 2014

23 pages

Published in:

JHEP 05 (2014) 069

Published: 2014

e-Print:

1403.2888 [hep-ex]

DOI:

10.1007/JHEP05(2014)069

PDG:

\Gamma _{\mathit L}/\Gamma

{{\mathit B}^{0}}

\rightarrow

{{\mathit \phi}}{{\mathit K}^{*}{(892)}^{0}}

Report number:

CERN-PH-EP-2014-038,
LHCB-PAPER-2014-005

Experiments:

CERN-LHC-LHCb

View in:

reference search56 citations

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Abstract: (arXiv)

An angular analysis of the decay

B^0 \to \phi K^*(892)^0

is reported based on a

pp

collision data sample, corresponding to an integrated luminosity of 1.0 fb

^{-1}

, collected at a centre-of-mass energy of

\sqrt{s} = 7

TeV with the LHCb detector. The P-wave amplitudes and phases are measured with a greater precision than by previous experiments, and confirm about equal amounts of longitudinal and transverse polarization. The S-wave

K^+ \pi^-

and

K^+K^-

contributions are taken into account and found to be significant. A comparison of the

B^0 \to \phi K^*(892)^0

and

\bar{B}^0 \to \phi \bar{K}^*(892)^0

results shows no evidence for direct CP violation in the rate asymmetry, in the triple-product asymmetries or in the polarization amplitudes and phases.

Note:

26 pages, 13 figures, submitted to JHEP

CP violation
Hadron-Hadron Scattering
Polarization
B physics
Flavour Changing Neutral Currents
polarization
asymmetry: CP
p p: scattering
LHC-B
B0: hadronic decay

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Figures(13)

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