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Article
Report number arXiv:2009.00026 ; LHCb-PAPER-2020-025 ; CERN-EP-2020-159
Title Amplitude analysis of the B+D+DK+ decay
Author(s) LHCb Collaboration  Show all 982 authors
Publication 2020-12-07
Imprint 2020-08-31
Number of pages 48
Note All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2020-025.html (LHCb public pages). v2 adds arXiv identifier for simultaneously-submitted LHCb-PAPER-2020-024. v3 matches published version
In: Phys. Rev. D 102 (2020) 112003
DOI 10.1103/PhysRevD.102.112003
Subject category hep-ex ; Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; LHCb
Free keywords flavor physics ; QCD ; exotics ; B physics ; quarkonium ; spectroscopy ; particle and resonance production
Abstract Results are reported from an amplitude analysis of the B+D+DK+ decay. The analysis is carried out using LHCb proton-proton collision data taken at s=7,8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb1. In order to obtain a good description of the data, it is found to be necessary to include new spin-0 and spin-1 resonances in the DK+ channel with masses around 2.9 GeV/c2, and a new spin-0 charmonium resonance in proximity to the spin-2 χc2(3930) state. The masses and widths of these resonances are determined, as are the relative contributions of all components in the amplitude model, which additionally include the vector charmonia ψ(3770), ψ(4040), ψ(4160) and ψ(4415) states and a nonresonant component.
Copyright/License publication: © 2020-2024 CERN (License: CC-BY-4.0), sponsored by SCOAP³
preprint: © 2020-2024 CERN (License: CC-BY-4.0)



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 Záznam vytvorený 2020-12-08, zmenený 2024-10-02


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