Model-independent study of structure in $B^+\to D^+D^-K^+$ decays

R Aaij, M Adinolfi, S Bhasin, P Camargo Magalhaes, M G Chapman, J M Kariuki, R Lane, S Maddrell-Mander, L R Madhan Mohan, P Naik, D P O'Hanlon, K Petridis, G J Pomery, J J Velthuis, R Wang, B D C Westhenry, M Whitehead, G Zunica, et al., LHCb Collaboration

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Abstract

The only anticipated resonant contributions to B+→D+D−K+ decays are charmonium states in the D+D− channel. A model-independent analysis, using LHCb proton-proton collision data taken at center-of-mass energies of √s=7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9  fb−1, is carried out to test this hypothesis. The description of the data assuming that resonances only manifest in decays to the D+D− pair is shown to be incomplete. This constitutes evidence for a new contribution to the decay, potentially one or more new charm-strange resonances in the D−K+ channel with masses around 2.9  GeV/c2.
Original languageEnglish
Article number242001
Number of pages10
JournalPhysical Review Letters
Volume125
Issue number24
DOIs
Publication statusPublished - 7 Dec 2020

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