Measurement of polarization amplitudes and CP asymmetries in B[superscript 0] → ϕK[superscript *](892)[superscript 0]

An angular analysis of the decay B [superscript 0] → ϕK [superscript *](892)[superscript 0] is reported based on a pp collision data sample, corresponding to an integrated luminosity of 1.0 fb[superscript −1], collected at a centre-of-mass energy of √s = 7 TeV with the LHCb detector. The P-wave ampl...

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Bibliographic Details
Main Authors: Counts, Ian Thomas Hunt, Ilten, Philip James, Williams, Michael
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: Springer-Verlag 2014
Online Access:http://hdl.handle.net/1721.1/88597
https://orcid.org/0000-0001-8285-3346
https://orcid.org/0000-0002-4670-1334
https://orcid.org/0000-0001-5534-1732
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Summary:An angular analysis of the decay B [superscript 0] → ϕK [superscript *](892)[superscript 0] is reported based on a pp collision data sample, corresponding to an integrated luminosity of 1.0 fb[superscript −1], collected at a centre-of-mass energy of √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 [superscript +] π [superscript −] and K [superscript +] K [superscript −] contributions are taken into account and found to be significant. A comparison of the B [superscript 0] → ϕK [superscript *](892)[superscript 0] and [bar over B] [superscript 0] → ϕ[bar over K] [superscript *](892)[superscript 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.