Measurement of the polarization amplitudes in B[superscript 0] → J/ψK[superscript *](892)[superscript 0] decays
Author(s)
Williams, Michael
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An analysis of the decay B[superscript 0] → J/ψK[superscript *](892)[superscript 0] is presented using data, corresponding to an integrated luminosity of 1.0 fb[superscript −1], collected in pp collisions at a center-of-mass energy of 7 TeV with the LHCb detector. The polarization amplitudes and the corresponding phases are measured to be |A[subscript ∥]|[superscript 2] = 0.227 ± 0.004 (stat) ± 0.011 (syst), |A[subscript ⊥]|[superscript 2] = 0.201 ± 0.004 (stat) ± 0.008 (syst), δ[subscript ∥][rad] = −2.94 ± 0.02 (stat) ± 0.03 (syst), and δ[subscript ⊥][rad] = 2.94 ± 0.02 (stat) ± 0.02 (syst). Comparing B[superscript 0] → J/ψK[superscript *](892)[superscript 0] and [¯ over B][superscript 0] → J/ψ[¯ over K][ superscript *](892)[superscript 0] decays, no evidence for direct CP violation is found.
Date issued
2013-09Department
Massachusetts Institute of Technology. Department of PhysicsJournal
Physical Review D
Publisher
American Physical Society
Citation
Aaij, R., C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, et al. “Measurement of the polarization amplitudes in B[superscript 0] → J/ψK[superscript *](892)[superscript 0] decays.” Physical Review D 88, no. 5 (September 2013). © 2013 CERN, for the LHCb Collaboration
Version: Final published version
ISSN
1550-7998
1550-2368