Publications
Publication Information
| Title | Excited J -- Resonances in Meson-Meson Scattering from Lattice QCD |
| Authors | Christopher Johnson |
| JLAB number | JLAB-THY-21-3545 |
| LANL number | (None) |
| Other number | DOE/OR/23177-5370 |
| Document Type(s) | (Thesis) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
| Other Funding: | DE-SC0018416 AC05-00OR22725 |
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Thesis A PHD thesis Advisor(s) : Jozef Dudek (W&M) | |
| Publication Abstract: | Understanding the excited light meson spectrum is vital to our understanding of how quarks and gluons bind to become hadrons. This sector is home to a plethora of states including hadrons laying outside the quark model. Distinguishing the exotics from the rest of the spectrum would be made easier if we first had a handle on the light qq¯ spectrum. I present the first determination of excited light JP C = 1--, 2--, 3-- resonances in meson-meson scattering at the SU(3) flavor point from lattice QCD. This system can be described in the context of pseudoscalar-vector elastic scattering and I determine two 1-- resonances; a lighter broader state followed by a heavier narrow state, one broad 2-- resonance, and one narrow 3-- resonance. This is the first calculation in lattice QCD that successfully extracts two resonances from the same partial wave, as well as the first calculation of a light 2-- resonance. I present the results in terms of the physical omega*/J , phi*/J resonances decaying into final states pi rho, KK¯*, eta omega and others, and compare to experiment as well as a popular phenomenological model. |
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| Group: | THEORY CENTER |
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