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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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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spelling dmit-1721.1-885972021-09-10T15:14:03Z Measurement of polarization amplitudes and CP asymmetries in B[superscript 0] → ϕK[superscript *](892)[superscript 0] Counts, Ian Thomas Hunt Ilten, Philip James Williams, Michael Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Counts, Ian Thomas Hunt Ilten, Philip James Williams, Michael 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. National Science Foundation (U.S.) 2014-08-07T18:32:06Z 2014-08-07T18:32:06Z 2014-05 2014-03 Article http://purl.org/eprint/type/JournalArticle 1029-8479 1126-6708 http://hdl.handle.net/1721.1/88597 Aaij, R., A. Abba, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, J. Albrecht, et al. “Measurement of Polarization Amplitudes and CP Asymmetries in B[superscript 0] → ϕK[superscript *](892)[superscript 0].” J. High Energ. Phys. 2014, no. 5 (May 2014). © CERN, for the benefit of the LHCb Collaboration https://orcid.org/0000-0001-8285-3346 https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 en_US http://dx.doi.org/10.1007/JHEP05(2014)069 Journal of High Energy Physics Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag Springer-Verlag
institution DSpace@MIT
collection DSpace
language en_US
description 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.
author2 Massachusetts Institute of Technology. Department of Physics
author_facet Massachusetts Institute of Technology. Department of Physics
Counts, Ian Thomas Hunt
Ilten, Philip James
Williams, Michael
format Article
author Counts, Ian Thomas Hunt
Ilten, Philip James
Williams, Michael
spellingShingle Counts, Ian Thomas Hunt
Ilten, Philip James
Williams, Michael
Measurement of polarization amplitudes and CP asymmetries in B[superscript 0] → ϕK[superscript *](892)[superscript 0]
author_sort Counts, Ian Thomas Hunt
title Measurement of polarization amplitudes and CP asymmetries in B[superscript 0] → ϕK[superscript *](892)[superscript 0]
title_short Measurement of polarization amplitudes and CP asymmetries in B[superscript 0] → ϕK[superscript *](892)[superscript 0]
title_full Measurement of polarization amplitudes and CP asymmetries in B[superscript 0] → ϕK[superscript *](892)[superscript 0]
title_fullStr Measurement of polarization amplitudes and CP asymmetries in B[superscript 0] → ϕK[superscript *](892)[superscript 0]
title_full_unstemmed Measurement of polarization amplitudes and CP asymmetries in B[superscript 0] → ϕK[superscript *](892)[superscript 0]
title_sort measurement of polarization amplitudes and cp asymmetries in b[superscript 0] → ϕk[superscript *](892)[superscript 0]
publisher Springer-Verlag
publishDate 2014
url 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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AT williamsmichael measurementofpolarizationamplitudesandcpasymmetriesinbsuperscript0phksuperscript892superscript0
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