Exotic Hidden-heavy Hadrons and Where to Find Them
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866929746694111232 |
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| author | Braaten, Eric Bruschini, Roberto |
| author_facet | Braaten, Eric Bruschini, Roberto |
| contents | The Born-Oppenheimer potentials for QCD with light quarks include adjoint-hadron potentials that are repulsive at short distances and heavy-hadron-pair potentials that approach thresholds at large distances. The adjoint-hadron potentials must connect smoothly to the heavy-hadron-pair potentials at intermediate distances. We identify exotic hidden-heavy hadrons as bound states and resonances in adjoint-hadron potentials that cross below a heavy-hadron-pair threshold before approaching it. This explains why many exotic hidden-charm and hidden-bottom hadrons have energies near heavy-hadron-pair thresholds. The remarkable properties of some exotic hidden-heavy mesons can be explained by fine tunings of adjoint-meson energies in QCD. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_08002 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Exotic Hidden-heavy Hadrons and Where to Find Them Braaten, Eric Bruschini, Roberto High Energy Physics - Phenomenology The Born-Oppenheimer potentials for QCD with light quarks include adjoint-hadron potentials that are repulsive at short distances and heavy-hadron-pair potentials that approach thresholds at large distances. The adjoint-hadron potentials must connect smoothly to the heavy-hadron-pair potentials at intermediate distances. We identify exotic hidden-heavy hadrons as bound states and resonances in adjoint-hadron potentials that cross below a heavy-hadron-pair threshold before approaching it. This explains why many exotic hidden-charm and hidden-bottom hadrons have energies near heavy-hadron-pair thresholds. The remarkable properties of some exotic hidden-heavy mesons can be explained by fine tunings of adjoint-meson energies in QCD. |
| title | Exotic Hidden-heavy Hadrons and Where to Find Them |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2409.08002 |