Publications
Publication Information
| Title | Charmonium ¿¿¿0 and ¿¿¿2 resonances in coupled-channel scattering from lattice QCD |
| Authors | Robert Edwards, Jozef Dudek, David Wilson, Christopher Thomas |
| JLAB number | JLAB-THY-24-4082 |
| LANL number | arXiv:2309.14071 |
| Other number | DOE/OR/23177-7520 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Physical Review D Volume 109 Issue 11 Page(s) 114503 Refereed | |
| Publication Abstract: | In order to explore the spectrum of hidden-charm scalar and tensor resonances, we study meson-meson scattering with $J^{PC}=0^{++}, 2^{++}$ in the charmonium energy region using lattice QCD. Employing a light-quark mass corresponding to $m_\pi \approx 391$ MeV, we determine coupled-channel scattering amplitudes up to around 4100 MeV considering all kinematically relevant channels consisting of a pair of open-charm mesons or a charmonium meson with a light meson. A single isolated scalar resonance near 4000 MeV is found with large couplings to $D\bar{D}$, $D_s \bar{D}_s$ and the kinematically closed $D^* \bar{D}^*$ channel. A single tensor resonance at a similar mass couples strongly to $D\bar{D}$, $D\bar{D}^*$ and $D^* \bar{D}^*$. We compare the extracted resonances to contemporary experimental candidate states, previous lattice results and theoretical modeling. In contrast to several other studies, we do not find any significant feature in the scalar amplitudes between the ground state $\chi_{c0}(1P)$ and the resonance found around 4000~MeV. |
| Experiment Numbers: | other |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevD.109.114503 |
| Accepted Manuscript: | PhysRevD.109.114503.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |