Study of the doubly charmed tetraquark Tcc+

LHCb Collaboration

doi:10.1038/s41467-022-30206-w

Study of the doubly charmed tetraquark Tcc+

LHCb Collaboration

Science Park 105
University of Warwick
Physik-Institut der Universität Zürich
University of Liverpool
Universidade de Santiago de Compostela
University of Bristol
Clermont-Auvergne University
Sorbonne Université
University of Michigan, Ann Arbor
Sezione INFN di Milano
University of Cincinnati
University of Dortmund
European Organization for Nuclear Research
University of Glasgow
University of Barcelona
University of Manchester
Petersburg Nuclear Physics Institute (PNPI)
University of Cambridge
Instituto de Biofisica da UFRJ
Université Paris-Saclay
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
Sezione INFN di Ferrara
University of Heidelberg
Kurchatov Institute
Syracuse University
Yandex School of Data Analysis
Aix Marseille Université
ENAC-IIC-GEL
Centro Brasileiro de Pesquisas Fisicas
University of Florence
Imperial College London
Sezione di Genova
University of Genoa
National University of Science and Technology “MISIS”
RWTH Aachen University
Agh University of Science and Technology Faculty of Computer Science
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Sezione INFN di Cagliari
Moscow State University
Institute for Theoretical and Experimental Physics
LNF-INFN
University of Padova
Institute for Nuclear Physics
Wuhan University
University of Birmingham
University of Modena and Reggio Emilia
University of Oxford
National Research University
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
University of Maryland, College Park
South China Normal University
Institute for Nuclear Research of the Russian Academy of Sciences
University of Ferrara
INFN Sezione di Milano-Bicocca
University of Milano-Bicocca
Universitat Ramon LLull - CSIC
University of Chinese Academy of Sciences
INFN Sezione di Bologna
University of Bologna
INFN Roma Tor Vergata
Institute of High Energy Physics, Chinese Academy of Sciences
Université Savoie Mont Blanc
Tsinghua University
University of Edinburgh
Horia Hulubei National Institute of Physics and Nuclear Engineering
INFN Sezione di Bari
Università degli studi di Bari Aldo Moro
Massachusetts Institute of Technology
MST-8, Los Alamos National Laboratory
Hunan University
ICS/University of Groningen
Maastricht University
Universitá di Cagliari
Eötvös Loránd University
Institute of Nuclear Research, National Academy of Sciences in Ukraine
University College Dublin
Kharkov Institute of Physics and Technology
INFN Sezione di Perugia
CCLRC Rutherford Appleton Laboratory
Monash University
Novosibirsk State University
Uppsala University
State Key Laboratory of Nuclear Physics and Technology
National Centre for Nuclear Research (NCBJ)
University of Rome “Tor Vergata”
Pontifícia Universidade Católica do Rio de Janeiro
Universidade Federal Do Triângulo Mineiro (UFTM)
Central China Normal University
University of Valencia
Vrije Universiteit Amsterdam
National Research Tomsk Polytechnic University
University of Siena
Scuola Normale Superiore di Pisa
Kurchatov Institute
University of Milano
Iligan Institute of Technology (IIT)
Sezione di Roma
Universität Rostock
Universidad Nacional de Colombia
University Bonn
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
University of Pisa
Università degli Studi della Basilicata
Max-Planck-Institut für Kernphysik
University of Urbino Carlo Bo

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

Quantum chromodynamics, the theory of the strong force, describes interactions of coloured quarks and gluons and the formation of hadronic matter. Conventional hadronic matter consists of baryons and mesons made of three quarks and quark-antiquark pairs, respectively. Particles with an alternative quark content are known as exotic states. Here a study is reported of an exotic narrow state in the D⁰D⁰π⁺ mass spectrum just below the D^*+D⁰ mass threshold produced in proton-proton collisions collected with the LHCb detector at the Large Hadron Collider. The state is consistent with the ground isoscalar Tcc+ tetraquark with a quark content of c c u ¯ d ¯ and spin-parity quantum numbers J^P = 1⁺. Study of the DD mass spectra disfavours interpretation of the resonance as the isovector state. The decay structure via intermediate off-shell D^*+ mesons is consistent with the observed D⁰π⁺ mass distribution. To analyse the mass of the resonance and its coupling to the D^*D system, a dedicated model is developed under the assumption of an isoscalar axial-vector Tcc+ state decaying to the D^*D channel. Using this model, resonance parameters including the pole position, scattering length, effective range and compositeness are determined to reveal important information about the nature of the Tcc+ state. In addition, an unexpected dependence of the production rate on track multiplicity is observed.

langue originale	Anglais
Numéro d'article	3351
journal	Nature Communications
Volume	13
Numéro de publication	1
Les DOIs	https://doi.org/10.1038/s41467-022-30206-w
état	Publié - 1 déc. 2022

Accès au document

10.1038/s41467-022-30206-w

Contient cette citation

@article{d6792b0473b4420fb2f28aea4287652d,

title = "Study of the doubly charmed tetraquark Tcc+",

abstract = "Quantum chromodynamics, the theory of the strong force, describes interactions of coloured quarks and gluons and the formation of hadronic matter. Conventional hadronic matter consists of baryons and mesons made of three quarks and quark-antiquark pairs, respectively. Particles with an alternative quark content are known as exotic states. Here a study is reported of an exotic narrow state in the D0D0π+ mass spectrum just below the D*+D0 mass threshold produced in proton-proton collisions collected with the LHCb detector at the Large Hadron Collider. The state is consistent with the ground isoscalar Tcc+ tetraquark with a quark content of c c u ¯ d ¯ and spin-parity quantum numbers JP = 1+. Study of the DD mass spectra disfavours interpretation of the resonance as the isovector state. The decay structure via intermediate off-shell D*+ mesons is consistent with the observed D0π+ mass distribution. To analyse the mass of the resonance and its coupling to the D*D system, a dedicated model is developed under the assumption of an isoscalar axial-vector Tcc+ state decaying to the D*D channel. Using this model, resonance parameters including the pole position, scattering length, effective range and compositeness are determined to reveal important information about the nature of the Tcc+ state. In addition, an unexpected dependence of the production rate on track multiplicity is observed.",

author = "\{LHCb Collaboration\} and R. Aaij and Abdelmotteleb, \{A. S.W.\} and Beteta, \{C. Abell{\'a}n\} and Gallego, \{F. J.Abudinen\} and T. Ackernley and B. Adeva and M. Adinolfi and H. Afsharnia and C. Agapopoulou 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 Amey, \{J. L.\} 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 Rodriguez, \{P. Baladron\} and V. Balagura and W. Baldini and Leite, \{J. Baptista\} and M. Barbetti and Barlow, \{R. J.\} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and Basels, \{J. M.\} and F. Fleuret and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s).",

year = "2022",

month = dec,

day = "1",

doi = "10.1038/s41467-022-30206-w",

language = "English",

volume = "13",

journal = "Nature Communications",

issn = "2041-1723",

number = "1",

}

TY - JOUR

T1 - Study of the doubly charmed tetraquark Tcc+

AU - LHCb Collaboration

AU - Aaij, R.

AU - Abdelmotteleb, A. S.W.

AU - Beteta, C. Abellán

AU - Gallego, F. J.Abudinen

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Afsharnia, H.

AU - Agapopoulou, C.

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 - Amey, J. L.

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 - Rodriguez, P. Baladron

AU - Balagura, V.

AU - Baldini, W.

AU - Leite, J. Baptista

AU - Barbetti, M.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Bartolini, M.

AU - Baryshnikov, F.

AU - Basels, J. M.

AU - Fleuret, F.

AU - Maurice, E.

PY - 2022/12/1

Y1 - 2022/12/1

N2 - Quantum chromodynamics, the theory of the strong force, describes interactions of coloured quarks and gluons and the formation of hadronic matter. Conventional hadronic matter consists of baryons and mesons made of three quarks and quark-antiquark pairs, respectively. Particles with an alternative quark content are known as exotic states. Here a study is reported of an exotic narrow state in the D0D0π+ mass spectrum just below the D*+D0 mass threshold produced in proton-proton collisions collected with the LHCb detector at the Large Hadron Collider. The state is consistent with the ground isoscalar Tcc+ tetraquark with a quark content of c c u ¯ d ¯ and spin-parity quantum numbers JP = 1+. Study of the DD mass spectra disfavours interpretation of the resonance as the isovector state. The decay structure via intermediate off-shell D*+ mesons is consistent with the observed D0π+ mass distribution. To analyse the mass of the resonance and its coupling to the D*D system, a dedicated model is developed under the assumption of an isoscalar axial-vector Tcc+ state decaying to the D*D channel. Using this model, resonance parameters including the pole position, scattering length, effective range and compositeness are determined to reveal important information about the nature of the Tcc+ state. In addition, an unexpected dependence of the production rate on track multiplicity is observed.

AB - Quantum chromodynamics, the theory of the strong force, describes interactions of coloured quarks and gluons and the formation of hadronic matter. Conventional hadronic matter consists of baryons and mesons made of three quarks and quark-antiquark pairs, respectively. Particles with an alternative quark content are known as exotic states. Here a study is reported of an exotic narrow state in the D0D0π+ mass spectrum just below the D*+D0 mass threshold produced in proton-proton collisions collected with the LHCb detector at the Large Hadron Collider. The state is consistent with the ground isoscalar Tcc+ tetraquark with a quark content of c c u ¯ d ¯ and spin-parity quantum numbers JP = 1+. Study of the DD mass spectra disfavours interpretation of the resonance as the isovector state. The decay structure via intermediate off-shell D*+ mesons is consistent with the observed D0π+ mass distribution. To analyse the mass of the resonance and its coupling to the D*D system, a dedicated model is developed under the assumption of an isoscalar axial-vector Tcc+ state decaying to the D*D channel. Using this model, resonance parameters including the pole position, scattering length, effective range and compositeness are determined to reveal important information about the nature of the Tcc+ state. In addition, an unexpected dependence of the production rate on track multiplicity is observed.

U2 - 10.1038/s41467-022-30206-w

DO - 10.1038/s41467-022-30206-w

M3 - Article

C2 - 35710739

AN - SCOPUS:85133997988

SN - 2041-1723

VL - 13

JO - Nature Communications

JF - Nature Communications

IS - 1

M1 - 3351

ER -

Study of the doubly charmed tetraquark Tcc+

Résumé

Accès au document

Empreinte digitale

Contient cette citation