Quarkoniumlike mesons in the diabatic approach
DOI:
https://doi.org/10.31349/SuplRevMexFis.3.0308033Keywords:
quark, meson, potentialAbstract
The Born-Oppenheimer approximation provides a description of heavy-quark mesons firmly based on quenched Lattice QCD. The diabatic framework extends this description through the incorporation of unquenched Lattice QCD data on string breaking. This allows for a unified description of conventional quarkonium, made of QQbar, and unconventional quarkoniumlike mesons, containing meson-meson components as well. A successful description of the charmoniumlike and bottomoniumlike spectra comes out.
References
S.-K. Choi et al. (Belle Collaboration), Observation of a Narrow Charmoniumlike State in Exclusive B± → K±π+π−J/ψ Decays, Phys. Rev. Lett. 91, 262001 (2003), doi:10.1103/PhysRevLett.91.262001.
E. J. Eichten, K. Gottfried, T. Kinoshita, K. D. Lane, and T. M. Yan, Charmonium: The model, Phys. Rev. D 17, 3090 (1978), doi:10.1103/PhysRevD.17.3090.
E. J. Eichten, K. D. Lane, and C. Quigg, Charmonium levels near threshold and the narrow state X(3872) → π+π−J/ψ, Phys. Rev. D 69, 094019 (2004), doi:10.1103/PhysRevD.69.094019.
S. Godfrey and N. Isgur, Mesons in a relativized quark model with chromodynamics, Phys. Rev. D 32, 189 (1985), doi:10.1103/PhysRevD.32.189.
P. A. Zyla et al. (Particle Data Group), Review of particle physics, Progr. Theor. Exp. Phys. 2020, 083C01 (2020),
doi:10.1093/ptep/ptaa104.
T. Barnes and E. S. Swanson, Hadron loops: General theorems and application to charmonium, Phys. Rev. C 77, 055206 (2008), doi:10.1103/PhysRevC.77.055206.
J. Ferretti and E. Santopinto, Threshold corrections of χc(2P) and χb(3P) states and J/ψρ and J/ψω transitions of X(3872) in a coupled-channel model, Phys. Lett. B 789, 550 (2019), doi:10.1016/j.physletb.2018.12.052.
H.-X. Chen, W. Chen, X. Liu, and S.-L. Zhu, The hidden-charm pentaquark and tetraquark states, Phys. Rep. 639, 1 (2019), doi:10.1016/j.physrep.2016.05.004.
R. F. Lebed, R. E. Mitchell, and E. S. Swanson, Heavyquark QCD exotica, Prog. Part. Nucl. Phys. 93, 143 (2017), doi:10.1016/j.ppnp.2016.11.003.
F.-K. Guo, C. Hanhart, U.-G. Meißner, Q. Wang, Q. Zhao, and B.-S. Zhou, Hadronic molecules, Rev. Mod. Phys. 90, 015004 (2018), doi:10.1103/RevModPhys.90.015004.
A. Esposito, A. Pilloni, and A. Polosa, Multiquark resonances, Phys. Rep. 668, 1 (2017), doi:10.1016/j.physrep.2016.11.002.
K. J. Juge, J. Kuti, and C. J. Morningstar, Ab Initio Study of Hybrid ¯bgb Mesons, Phys. Rev. Lett. 82, 4400 (1999), doi:10.1103/PhysRevLett.82.4400.
E. Braaten, C. Langmack, and D. H. Smith, Born-Oppenheimer approximation for the XY Z mesons, Phys. Rev. D 90, 014044 (2014), doi:10.1103/PhysRevD.90.014044.
N. Brambilla, S. Eidelman, C. Hanhart, A. Nefediev, C.-P Shen, C. E. Thomas, A. Vairo, and C.-Z. Yuan, The XY Z states: experimental and theoretical status and perspectives, Phys. Rep. 873, 1 (2020), doi:10.1016/j.physrep.2020.05.001.
G. S. Bali, QCD forces and heavy quark bound states, Phys. Rep. 343, 1 (2001), doi:10.1016/S0370-1573(00)00079-X.
G. S. Bali, H. Neff, T. D¨ussel, T. Lippert, and K. Schilling (SESAM Collaboration), Observation of string breaking in QCD, Phys. Rev. D 71, 114513 (2005), doi:10.1103/PhysRevD.71.114513.
J. Bulava, B. H¨orz, F. Knechtli, V. Koch, G. Moir, C. Monringstar, and M. Peardon, String breaking by light and strange quarks in QCD, Phys. Lett. B 793, 493 (2019), doi:10.1016/j.physletb.2019.05.018.
M. Baer, Beyond Born-Oppenheimer: Electronic Nonadiabatic Coupling Terms and Conical Intersections (John Wiley & Sons, New York, 2006).
R. Bruschini and P. Gonz´alez, Diabatic description of charmoniumlike mesons, Phys. Rev. D 102, 074002 (2020), doi:10.1103/PhysRevD.102.074002.
R. Bruschini and P. Gonz´alez, Diabatic description of charmoniumlike mesons. II. Mass corrections and strong decay widths, Phys. Rev. D 103, 074009 (2021), doi:10.1103/PhysRevD.103.074009.
R. Bruschini and P. Gonz´alez, Diabatic description of bottomoniumlike mesons, Phys. Rev. D 103, 114016 (2021), doi:10.1103/PhysRevD.103.114016.
M. Born and R. Oppenheimer, Zur quantentheorie der molekeln, Ann. Phys. 389, 457 (1927), doi:10.1002/andp.19273892002.
R. Bruschini and P. Gonz´alez, Coupled-channel meson-meson scattering in the diabatic framework, Phys. Rev D 104, 074025 (2021), doi:10.1103/PhysRevD.104.074025.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2022 Roberto Bruschini (Author)
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Authors retain copyright and grant the Suplemento de la Revista Mexicana de Física right of first publication with the work simultaneously licensed under a CC BY-NC-ND 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.