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

LHCb Collaboration

doi:10.1103/PhysRevLett.125.242001

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

LHCb Collaboration

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

202 Scopus citations

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
Journal	Physical Review Letters
Volume	125
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevLett.125.242001
State	Published - 7 Dec 2020
Externally published	Yes

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10.1103/PhysRevLett.125.242001

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@article{cc986c28a17d42aaa33fe8bc505fa5e6,

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 = "\{LHCb Collaboration\} and R. Aaij and Beteta, \{C. Abell{\'a}n\} and T. Ackernley and B. Adeva and M. Adinolfi and H. Afsharnia and Aidala, \{C. A.\} and S. Aiola and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and Albero, \{A. Alfonso\} and Z. Aliouche and G. Alkhazov and Cartelle, \{P. Alvarez\} and S. Amato and Y. Amhis and L. An and L. Anderlini and A. Andreianov and M. Andreotti and F. Archilli and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and M. Bachmayer and Back, \{J. J.\} and S. Baker and Rodriguez, \{P. Baladron\} and V. Balagura and W. Baldini and Leite, \{J. Baptista\} and Barlow, \{R. J.\} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and Basels, \{J. M.\} and G. Bassi and B. Batsukh and A. Battig and A. Bay and M. Becker and Milanes, \{D. A.\}",

note = "Publisher Copyright: {\textcopyright} 2020 CERN.",

year = "2020",

month = dec,

day = "7",

doi = "10.1103/PhysRevLett.125.242001",

language = "English",

volume = "125",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "24",

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TY - JOUR

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

AU - LHCb Collaboration

AU - Aaij, R.

AU - Beteta, C. Abellán

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Afsharnia, H.

AU - Aidala, C. A.

AU - Aiola, S.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Albero, A. Alfonso

AU - Aliouche, Z.

AU - Alkhazov, G.

AU - Cartelle, P. Alvarez

AU - Amato, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreianov, A.

AU - Andreotti, M.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Baker, S.

AU - Rodriguez, P. Baladron

AU - Balagura, V.

AU - Baldini, W.

AU - Leite, J. Baptista

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Bartolini, M.

AU - Baryshnikov, F.

AU - Basels, J. M.

AU - Bassi, G.

AU - Batsukh, B.

AU - Battig, A.

AU - Bay, A.

AU - Becker, M.

AU - Milanes, D. A.

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.

UR - https://www.scopus.com/pages/publications/85097579403

U2 - 10.1103/PhysRevLett.125.242001

DO - 10.1103/PhysRevLett.125.242001

M3 - Article

C2 - 33412030

AN - SCOPUS:85097579403

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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