تقرير
Doubly Heavy Tetraquarks in the Born-Oppenheimer approximation
| العنوان: | Doubly Heavy Tetraquarks in the Born-Oppenheimer approximation |
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| المؤلفون: | Maiani, Luciano, Pilloni, Alessandro, Polosa, Antonio D., Riquer, Veronica |
| سنة النشر: | 2022 |
| المجموعة: | High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology |
| الوصف: | Tetraquarks QQq*q* are found to be described remarkably well with the Quantum Chromodynamics version of the Hydrogen bond, as treated with the Born-Oppenheimer approximation. We show the robustness of the method by computing the mass of the observed Tcc tetraquark following two different paths. Relying on this, we provide a prediction for the mass of the expected Tbb particle. The average sizes of tetraquarks are estimated to be approximately 3 - 5 GeV**-1. As a consequence hyperfine separations are not expected to be sizeable. We discussed possible reasons why LHCb has observed only one state in the DD* spectrum. Comment: 8 pages, 1 figure. Corrections made. Improved draft. To appear in PLB |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.physletb.2022.137624 |
| URL الوصول: | http://arxiv.org/abs/2208.02730 |
| رقم الأكسشن: | edsarx.2208.02730 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.physletb.2022.137624 |
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