Model-Independent Study of Structure in B + → D + D − K +  Decays

K. De Bruyn; C. J. G. Onderwater; M. van Veghel; LHCb Collaboration

doi:10.1103/PhysRevLett.125.242001

Model-Independent Study of Structure in B + → D + D − K + Decays

K. De Bruyn
, C. J. G. Onderwater
, M. van Veghel
, LHCb Collaboration

Research output: Contribution to journal › Article › Academic › peer-review

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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 language	English
Article number	242001
Number of pages	10
Journal	Physical Review Letters
Volume	125
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevLett.125.242001
Publication status	Published - 7-Dec-2020

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title = "Model-Independent Study of Structure in B + → D + D − K + Decays",

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.",

author = "R. Aaij and B. Adeva and M. Adinolfi and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and \{De Bruyn\}, K. and L. Dufour and M Mulder and Onderwater, \{C. J. G.\} and A. Pellegrino and S. Tolk and \{van Veghel\}, M. and \{LHCb Collaboration\}",

year = "2020",

month = dec,

day = "7",

doi = "10.1103/PhysRevLett.125.242001",

language = "English",

volume = "125",

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T1 - Model-Independent Study of Structure in B + → D + D − K + Decays

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - De Bruyn, K.

AU - Dufour, L.

AU - Mulder, M

AU - Onderwater, C. J. G.

AU - Pellegrino, A.

AU - Tolk, S.

AU - van Veghel, M.

AU - LHCb Collaboration

PY - 2020/12/7

Y1 - 2020/12/7

N2 - 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.

AB - 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.

U2 - 10.1103/PhysRevLett.125.242001

DO - 10.1103/PhysRevLett.125.242001

M3 - Article

C2 - 33412030

SN - 0031-9007

VL - 125

JO - Physical Review Letters

JF - Physical Review Letters

IS - 24

M1 - 242001

ER -

Model-Independent Study of Structure in B + → D + D − K + Decays

Abstract

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