Publications
Publication Information
| Title | Pion scattering in the isospin I=2 channel from elongated lattices |
| Authors | C. Culver, Maxim Mai, Andrei Alexandru, Michael Doring, Frank Lee |
| JLAB number | JLAB-THY-19-2972 |
| LANL number | arXiv:1905.10202 |
| Other number | DOE/OR/23177-4729 |
| 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 100 Page(s) 034509 Refereed | |
| Publication Abstract: | Pion-pion elastic scattering in the isospin I=2 channel is investigated in two-flavor dynamical lattice QCD. Six ensembles are used with lattices elongated in one of the spatial dimensions at two quark masses corresponding to a pion mass of 315 MeV and 226 MeV. The energy of the low-lying states below the inelastic threshold are extracted in each case using the standard variational method.The extracted finite-volume spectrum is fitted by the inverse amplitude method simultaneously for both quark masses and extrapolated thereafter to the physical point. The resulting phase-shifts and scattering length are compared with those from experiment, leading-order chiral perturbation theory and other lattice studies. Our calculations match the experimental results. |
| Experiment Numbers: | |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevD.100.034509 |
| Accepted Manuscript: | PhysRevD.100.034509.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |