Publications
Publication Information
| Title | Dalitz plots and lineshape of $a_1(1260)$ from a relativistic three-body unitary approach |
| Authors | Daniel Sadasivan, Maxim Mai, Hakan Akdag, Michael Doring |
| JLAB number | JLAB-THY-20-3170 |
| LANL number | arXiv:2002.12431 |
| Other number | DOE/OR/23177-4950 |
| 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 101 Page(s) 094018 Refereed | |
| Publication Abstract: | We formulate the final state interaction of the $a_1(1260)$ resonance decay in a manifestly three-body unitary parameterization and fit it to the $a_1(1260)$ lineshape measured by the ALEPH experiment. Dalitz plots calculated from this fit are presented. The work demonstrates the feasibility to numerically solve a previously derived amplitude and its generalization to isobars with spin and coupled channels. The model can also be applied to other meson decays and modified for the finite-volume problem as it arises in lattice QCD due to its manifest unitarity. |
| Experiment Numbers: | |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevD.101.094018 |
| Accepted Manuscript: | 2002.12431.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |