Shrimal, Tanishk and Collins, Sara and Jana, Priyajit and Padmanath, M. and Prelovsek, Sasa (2025) Lattice study of ccus tetraquark channels in D(*)D(*) s scattering. PHYSICAL REVIEW D, 112 (5): 054513. ISSN 2470-0010, 2470-0029
Full text not available from this repository. (Request a copy)Abstract
We present the first lattice quantum chromodynamics (QCD) determination of coupled DD*s and D*Ds scattering amplitudes in the JP 1/4 1+ channel and elastic DDs scattering amplitude in the JP 1/4 0+ channel. The aim is to investigate whether tetraquarks with flavor ccus exist in the region near threshold. Lattice QCD ensembles from the CLS consortium with m pi 280 MeV, a 0.09 fm and L/a 1/4 24, 32 are utilized. Finite-volume spectra are determined via variational analysis of two-point correlation matrices, computed using large bases of operators resembling bilocal two-meson structures within the distillation framework. The scattering matrix for partial wave l 1/4 0 is determined using lattice eigenenergies from multiple inertial frames following L & uuml;scher's formalism as well as following the solutions of Lippmann-Schwinger equation in the finite-volume on a plane-wave basis. We observe small nonzero energy shifts in the simulated spectra from the noninteracting scenario in both the channels studied, which points to rather weak nontrivial interactions between the mesons involved. Despite the nonzero energy shifts, the lattice-extracted S-wave amplitudes do not carry signatures of any hadron pole features in the physical amplitudes in the energy region near the threshold.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | STATES |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 16 Jul 2026 06:25 |
| Last Modified: | 16 Jul 2026 06:25 |
| URI: | https://pred.uni-regensburg.de/id/eprint/66912 |
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