Low-energy $DD$ scattering in lattice QCD
| Title: | Low-energy $DD$ scattering in lattice QCD |
|---|---|
| Authors: | Shi, Pan-Pan, Guo, Feng-Kun, Liu, Chuan, Liu, Liuming, Sun, Peng, Wu, Jia-Jun, Xing, Hanyang |
| Publication Year: | 2025 |
| Collection: | High Energy Physics - Experiment High Energy Physics - Lattice High Energy Physics - Phenomenology |
| Subject Terms: | High Energy Physics - Lattice, High Energy Physics - Experiment, High Energy Physics - Phenomenology |
| More Details: | We present the first lattice QCD calculation of single-channel $DD$ scattering with quantum numbers $I(J^P)=1(0^+)$ and $0(1^-)$. The calculation is performed on the $2+1$ flavor Wilson-Clover ensembles with a lattice spacing $a\simeq 0.077$ fm and two different pion masses, $m_{\pi}\simeq207$ and $305$ MeV. The scattering parameters are determined using the L\"uscher's finite volume method. Our results indicate weak repulsive interaction in the $1(0^+)$ channel and slightly attractive interaction in the $0(1^-)$ channel. The $S$-wave isovector $DD$ scattering length and effective range, extrapolated to the physical pion mass, are $(-0.26\pm0.05)$ fm and $(-5.5\pm2.1)$ fm, respectively. Comment: 19 pages, 7 figures |
| Document Type: | Working Paper |
| Access URL: | http://arxiv.org/abs/2502.07438 |
| Accession Number: | edsarx.2502.07438 |
| Database: | arXiv |
| Description not available. |