Flavor mixing in charmonium and light mesons with optimal distillation profiles
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866910818699837440 |
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| author | Urrea-Niño, Juan Andrés Finkenrath, Jacob Höllwieser, Roman Knechtli, Francesco Korzec, Tomasz Peardon, Michael |
| author_facet | Urrea-Niño, Juan Andrés Finkenrath, Jacob Höllwieser, Roman Knechtli, Francesco Korzec, Tomasz Peardon, Michael |
| contents | We study the light meson - charmonium - glueball mixing using flavor-singlet meson operators built from optimal distillation profiles together with purely gluonic operators in different $J^{PC}$ channels at two different pion masses ($\approx$ $420$, $800$ MeV) in two $N_{\rm f} = 3 + 1$ ensembles at close to physical charm quark mass. We observe non-zero mixing correlations between the different types of operators and quantify the overlaps between states created by them and the energy eigenstates by means of a GEVP formulation. We are particularly interested in the scalar glueball and its possible decay into two pions so we also include two-pion operators in our calculation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_04977 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Flavor mixing in charmonium and light mesons with optimal distillation profiles Urrea-Niño, Juan Andrés Finkenrath, Jacob Höllwieser, Roman Knechtli, Francesco Korzec, Tomasz Peardon, Michael High Energy Physics - Lattice High Energy Physics - Phenomenology We study the light meson - charmonium - glueball mixing using flavor-singlet meson operators built from optimal distillation profiles together with purely gluonic operators in different $J^{PC}$ channels at two different pion masses ($\approx$ $420$, $800$ MeV) in two $N_{\rm f} = 3 + 1$ ensembles at close to physical charm quark mass. We observe non-zero mixing correlations between the different types of operators and quantify the overlaps between states created by them and the energy eigenstates by means of a GEVP formulation. We are particularly interested in the scalar glueball and its possible decay into two pions so we also include two-pion operators in our calculation. |
| title | Flavor mixing in charmonium and light mesons with optimal distillation profiles |
| topic | High Energy Physics - Lattice High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2502.04977 |