Observation of the Open-Charm Tetraquark Candidate 𝑇∗e⁢𝑠⁢0⁢(2870)0 in the 𝐵‾→𝐷‾𝐷0𝐾s0 Decay

LHCb Collaboration

doi:10.1103/PhysRevLett.134.101901

Observation of the Open-Charm Tetraquark Candidate 𝑇^∗_e⁢𝑠⁢0⁢(2870)⁰ in the 𝐵‾→𝐷‾𝐷⁰𝐾_s⁰Decay

LHCb Collaboration

Monash University
University of Warwick
Centro Brasileiro de Pesquisas Físicas
Facultad de Ciencias Fisicas
National Autonomous University of Honduras
Centro Federal de Educação Tecnológica Celso Suckow da Fonseca
Universidade Federal do Rio de Janeiro
Tsinghua University
Consejo Nacional de Rectores (CONARE)
Swiss Federal Institute of Technology Lausanne
CAS - Institute of High Energy Physics
Peking University
Wuhan University
Université Paris-Saclay
National Institute for Nuclear Physics
Central China Normal University
University of Chinese Academy of Sciences
South China Normal University
Henan University
CERN
Université Savoie Mont Blanc
Université Clermont Auvergne
University of Santiago de Compostela
Laboratoire Leprince-Ringuet
CPPM
Heidelberg University
University of Milan
TU Dortmund University
Sorbonne Université
RWTH Aachen University
University of Bonn
Lamarr Institute for Machine Learning and Artificial Intelligence
University of Cambridge
University of Freiburg
Max Planck Institute for Nuclear Physics
University College Dublin
University of Bari
University of Bologna
University of Ferrara
University of Urbino
University of Genoa
University of Bergamo
University of Milan - Bicocca
University of Cagliari
University of Padua
University of Perugia
Scuola Normale Superiore di Pisa
University of Pisa
University of Siena
University of Basilicata
University of Rome Tor Vergata
National Institute for Subatomic Physics
NASU - Institute of Nuclear Research
Maastricht University
Vrije Universiteit Amsterdam
AGH University of Krakow
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
National Centre for Nuclear Research
Horia Hulubei National Institute of Physics and Nuclear Engineering
Imperial College London
University of Bristol
Ramon Llull University
University of Barcelona
University of Alcalá
University of Valencia
Universidad Nacional de Colombia
University of Maryland, College Park
Rutherford Appleton Laboratory
University of Zurich
NASU - Kharkov Institute of Physics and Technology
University of Birmingham
University of Edinburgh
Lanzhou University
University of Glasgow
University of Liverpool
University of Manchester
University of Oxford
Hunan University
Massachusetts Institute of Technology
University of Cincinnati
Los Alamos National Laboratory
Syracuse University
Pontifícia Universidade Católica do Rio de Janeiro
Ruhr University Bochum
Eötvös Loránd University
University of Groningen
Cracow University of Technology
University of A Coruna
Uppsala University
Division of Particle Physics
University of Michigan, Ann Arbor

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7 Citas (Scopus)

Resumen

An amplitude analysis of (Formula presented) decays is performed using proton-proton collision data, corresponding to an integrated luminosity of (Formula presented), collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. A resonant structure of spin-parity (Formula presented) is observed in the (Formula presented) invariant-mass spectrum with a significance of (Formula presented). The mass and width of the state, modeled with a Breit-Wigner line shape, are determined to be (Formula presented) and (Formula presented), respectively, where the first uncertainties are statistical and the second systematic. These properties and the quark content are consistent with those of the open-charm tetraquark candidate (Formula presented) observed previously in the (Formula presented) final state of the (Formula presented) decay. This result confirms the existence of the (Formula presented) state in a new decay mode. The (Formula presented) state, reported in the (Formula presented) decay, is also searched for in the (Formula presented) invariant-mass spectrum of the (Formula presented) decay, without finding evidence for it.

Idioma original	Inglés
Número de artículo	101901
Páginas (desde-hasta)	101901
Número de páginas	1
Publicación	Physical Review Letters
Volumen	134
N.º	10
DOI	https://doi.org/10.1103/PhysRevLett.134.101901
Estado	Publicada - 14 mar 2025
Publicado de forma externa	Sí

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@article{6f9e2713a182429b9d469b1c6a2530fa,

title = "Observation of the Open-Charm Tetraquark Candidate 𝑇∗e⁢𝑠⁢0⁢(2870)0 in the 𝐵‾→𝐷‾𝐷0𝐾s0 Decay",

abstract = "An amplitude analysis of (Formula presented) decays is performed using proton-proton collision data, corresponding to an integrated luminosity of (Formula presented), collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. A resonant structure of spin-parity (Formula presented) is observed in the (Formula presented) invariant-mass spectrum with a significance of (Formula presented). The mass and width of the state, modeled with a Breit-Wigner line shape, are determined to be (Formula presented) and (Formula presented), respectively, where the first uncertainties are statistical and the second systematic. These properties and the quark content are consistent with those of the open-charm tetraquark candidate (Formula presented) observed previously in the (Formula presented) final state of the (Formula presented) decay. This result confirms the existence of the (Formula presented) state in a new decay mode. The (Formula presented) state, reported in the (Formula presented) decay, is also searched for in the (Formula presented) invariant-mass spectrum of the (Formula presented) decay, without finding evidence for it.",

author = "\{LHCb Collaboration\} and Bonacci, \{R. B.\} and S. Dekkers and U. Egede and Y. Fujii and T. Hadavizadeh and Harris, \{T. H.\} and Henderson, \{R. D.L.\} and Lane, \{J. J.\} and Liu, \{F. L.\} and M. Monk and R. Song and Walton, \{E. J.\} and Ward, \{J. A.\} and Bediaga, \{I. B.\} and \{Camargo Magalhaes\}, P. and \{Cruz Torres\}, M. and \{De Freitas Carneiro Da Graca\}, U. and \{De Miranda\}, \{J. M.\} and \{dos Reis\}, \{A. C.\} and Falcao, \{L. N.\} and A. Massafferri and L. Santoro and D. Sundfeld and \{Torres Machado\}, D. and S. Amato and G. Darze and \{De Paula\}, L. and \{Ferreira Rodrigues\}, F. and \{Franco Lima\}, V. and M. Gandelman and A. Hicheur and Lopes, \{J. H.\} and I. Nasteva and P. Nogarolli and \{Otalora Goicochea\}, \{J. M.\} and E. Polycarpo and Rangel, \{M. S.\} and \{Souza De Paula\}, B. and C. Dong and G. Gong and X. Hu and Y. Kang and A. Li and Z. Lian and Ma, \{G. M.\} and Meng, \{F. M.\} and H. Mu and X. Pan and N. Qin and \{Calderon Ramirez\}, S.",

note = "Publisher Copyright: {\textcopyright} 2025 CERN, for the LHCb Collaboration.",

year = "2025",

month = mar,

day = "14",

doi = "10.1103/PhysRevLett.134.101901",

language = "Ingl{\'e}s",

volume = "134",

pages = "101901",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "10",

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TY - JOUR

T1 - Observation of the Open-Charm Tetraquark Candidate 𝑇∗e⁢𝑠⁢0⁢(2870)0 in the 𝐵‾→𝐷‾𝐷0𝐾s0 Decay

AU - LHCb Collaboration

AU - Bonacci, R. B.

AU - Dekkers, S.

AU - Egede, U.

AU - Fujii, Y.

AU - Hadavizadeh, T.

AU - Harris, T. H.

AU - Henderson, R. D.L.

AU - Lane, J. J.

AU - Liu, F. L.

AU - Monk, M.

AU - Song, R.

AU - Walton, E. J.

AU - Ward, J. A.

AU - Bediaga, I. B.

AU - Camargo Magalhaes, P.

AU - Cruz Torres, M.

AU - De Freitas Carneiro Da Graca, U.

AU - De Miranda, J. M.

AU - dos Reis, A. C.

AU - Falcao, L. N.

AU - Massafferri, A.

AU - Santoro, L.

AU - Sundfeld, D.

AU - Torres Machado, D.

AU - Amato, S.

AU - Darze, G.

AU - De Paula, L.

AU - Ferreira Rodrigues, F.

AU - Franco Lima, V.

AU - Gandelman, M.

AU - Hicheur, A.

AU - Lopes, J. H.

AU - Nasteva, I.

AU - Nogarolli, P.

AU - Otalora Goicochea, J. M.

AU - Polycarpo, E.

AU - Rangel, M. S.

AU - Souza De Paula, B.

AU - Dong, C.

AU - Gong, G.

AU - Hu, X.

AU - Kang, Y.

AU - Li, A.

AU - Lian, Z.

AU - Ma, G. M.

AU - Meng, F. M.

AU - Mu, H.

AU - Pan, X.

AU - Qin, N.

AU - Calderon Ramirez, S.

PY - 2025/3/14

Y1 - 2025/3/14

N2 - An amplitude analysis of (Formula presented) decays is performed using proton-proton collision data, corresponding to an integrated luminosity of (Formula presented), collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. A resonant structure of spin-parity (Formula presented) is observed in the (Formula presented) invariant-mass spectrum with a significance of (Formula presented). The mass and width of the state, modeled with a Breit-Wigner line shape, are determined to be (Formula presented) and (Formula presented), respectively, where the first uncertainties are statistical and the second systematic. These properties and the quark content are consistent with those of the open-charm tetraquark candidate (Formula presented) observed previously in the (Formula presented) final state of the (Formula presented) decay. This result confirms the existence of the (Formula presented) state in a new decay mode. The (Formula presented) state, reported in the (Formula presented) decay, is also searched for in the (Formula presented) invariant-mass spectrum of the (Formula presented) decay, without finding evidence for it.

AB - An amplitude analysis of (Formula presented) decays is performed using proton-proton collision data, corresponding to an integrated luminosity of (Formula presented), collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. A resonant structure of spin-parity (Formula presented) is observed in the (Formula presented) invariant-mass spectrum with a significance of (Formula presented). The mass and width of the state, modeled with a Breit-Wigner line shape, are determined to be (Formula presented) and (Formula presented), respectively, where the first uncertainties are statistical and the second systematic. These properties and the quark content are consistent with those of the open-charm tetraquark candidate (Formula presented) observed previously in the (Formula presented) final state of the (Formula presented) decay. This result confirms the existence of the (Formula presented) state in a new decay mode. The (Formula presented) state, reported in the (Formula presented) decay, is also searched for in the (Formula presented) invariant-mass spectrum of the (Formula presented) decay, without finding evidence for it.

UR - https://www.scopus.com/pages/publications/105002486528

U2 - 10.1103/PhysRevLett.134.101901

DO - 10.1103/PhysRevLett.134.101901

M3 - Artículo

C2 - 40153632

AN - SCOPUS:105002486528

SN - 0031-9007

VL - 134

SP - 101901

JO - Physical Review Letters

JF - Physical Review Letters

IS - 10

M1 - 101901

ER -

Observation of the Open-Charm Tetraquark Candidate 𝑇∗e⁢𝑠⁢0⁢(2870)0 in the 𝐵‾→𝐷‾𝐷0𝐾s0 Decay

Resumen

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Observation of the Open-Charm Tetraquark Candidate 𝑇^∗_e⁢𝑠⁢0⁢(2870)⁰ in the 𝐵‾→𝐷‾𝐷⁰𝐾_s⁰Decay