Amplitude analysis of B[superscript +] → J/ψϕK[superscript +] decays
Name
PhysRevD.95.012002.pdf
Size
2.44 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Boettcher, Thomas Julian
Ilten, Philip J
Williams, Michael
Date Issued
June 2016
Journal
Physical Review D
Publisher
American Physical Society (APS)
Citation
Aaij, R., et al. “Amplitude Analysis of B[superscript +] → J/ψϕK[superscript +] Decays.” Physical Review D, vol. 95, no. 1, Jan. 2017. © 2017 CERN, for the LHCb Collaboration
Version
Final published version
Abstract
The first full amplitude analysis of B[superscript +]→J/ψφK[superscript +] with J/ψ→μ[superscript +]μ[superscript -], φ→K[superscript +]K[superscript -] decays is performed with a data sample of 3 fb[superscript -1] of pp collision data collected at √s=7 and 8 TeV with the LHCb detector. The data cannot be described by a model that contains only excited kaon states decaying into φK[superscript +], and four J/ψφ structures are observed, each with significance over 5 standard deviations. The quantum numbers of these structures are determined with significance of at least 4 standard deviations. The lightest has mass consistent with, but width much larger than, previous measurements of the claimed X(4140) state. The model includes significant contributions from a number of expected kaon excitations, including the first observation of the K∗(1680)[superscript +]→φK[superscript +] transition.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 3.0 Unported license
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DOI of Published Version
https://doi.org/10.1103/PHYSREVD.95.012002
