STI Publications - View Publication Form #21848
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Publication Information
| Title | A unitary coupled-channel three-body amplitude with pions and kaons | ||||
| Abstract | Three-body dynamics above threshold is required for the reliable extraction of many amplitudes and resonances from experiment and lattice QCD. The S-matrix principle of unitarity can be used to construct dynamical coupled-channel approaches in which three particles scatter off each other, re-arranging two-body subsystems by particle exchange. This paper reports the development of a three-body coupled-channel, amplitude including pions and kaons. The unequal-mass amplitude contains two-body S- and P-wave subsystems (?isobars?) of all isospins, I = 0, 1/2, 1, 3/2, 2, and it also allows for transitions within a given isobar. The f0(500) (????), f0(980), ?(700),K? 0 (700) (????), and K?(892) resonances are included, apart from repulsive isobars. Different methods to evaluate the amplitude for physical momenta are discussed. Production amplitudes for a1 quantum numbers are shown as a proof of principle for the numerical implementation. | ||||
| Author(s) | Yuchuan Feng, Fernando Gil, Michael Doring, Raquel Molina Peralta, Maxim Mai, Vanamali Shastry, Adam Szczepaniak | ||||
| Publication Date | November 2024 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | Theory & Comp Physics / THEORY CENTER / THEORY CENTER | ||||
| Funding Source | Nuclear Physics (NP) | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Physical Review D |
| Refereed | No |
| Volume | 110 |
| Issue | |
| Page(s) | 094002 |
Attachments/Datasets/DOI Link
| Document(s) |
3BpiK-3.pdf
(STI Document)
2407.08721v2.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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