Existence and non-existence of doubly heavy tetraquark bound states
- In this work we investigate the existence of bound states for doubly heavy tetraquark systems Q¯Q¯′qq′ in a full lattice-QCD computation, where heavy bottom quarks are treated in the framework of non-relativistic QCD. We focus on three systems with quark content b¯b¯ud, b¯b¯us and b¯c¯ud. We show evidence for the existence of b¯b¯ud and b¯b¯us bound states, while no binding appears to be present for b¯c¯ud. For the bound four-quark states we also discuss the importance of various creation operators and give an estimate of the meson-meson and diquark-antidiquark percentages.
| Author: | Martin PflaumerORCiDGND, Luka LeskovecORCiD, Stefan MeinelORCiDGND, Marc WagnerORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-846156 |
| DOI: | https://doi.org/10.22323/1.396.0392 |
| ISSN: | 1824-8039 |
| ArXiv Id: | http://arxiv.org/abs/2108.10704 |
| Parent Title (English): | Proceedings of Science |
| Publisher: | SISSA |
| Place of publication: | Trieste |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2022/07/08 |
| Date of first Publication: | 2022/07/08 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Contributing Corporation: | International Symposium on Lattice Field Theory (38. : 2021 : Online) |
| Release Date: | 2024/07/11 |
| Volume: | 396 |
| Issue: | 392 |
| Page Number: | 9 |
| Institutes: | Physik / Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International |
