Antiheavy-antiheavy-light-light four-quark bound states
- We present our recent results on antiheavy-antiheavy-light-light tetraquark systems using lattice QCD. Our study of the b¯b¯us four-quark system with quantum numbers JP=1+ and the b¯c¯ud four-quark systems with I(JP)=0(0+) and I(JP)=0(1+) utilizes scattering operators at the sink to improve the extraction of the low-lying energy levels. We found a bound state for b¯b¯us with Ebind,b¯b¯us=(−86±22±10)MeV, but no indication for a bound state in both b¯c¯ud channels. Moreover, we show preliminary results for b¯b¯ud with I(JP)=0(1+), where we used scattering operators both at the sink and the source. We found a bound state and determined its infinite-volume binding energy with a scattering analysis, resulting in Ebind,b¯b¯ud=(−103±8)MeV.
| Author: | Martin PflaumerORCiDGND, Constantia AlexandrouORCiDGND, Jacob FinkenrathORCiDGND, Theodoros LeontiouORCiD, Stefan MeinelORCiDGND, Marc WagnerORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-846161 |
| DOI: | https://doi.org/10.22323/1.430.0075 |
| ISSN: | 1824-8039 |
| ArXiv Id: | http://arxiv.org/abs/2211.00951 |
| Parent Title (English): | Proceedings of Science |
| Publisher: | SISSA |
| Place of publication: | Trieste |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2023/04/06 |
| Date of first Publication: | 2023/04/06 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Contributing Corporation: | International Symposium on Lattice Field Theory (39. : 2022 : Bonn) |
| Release Date: | 2024/07/11 |
| Volume: | 430 |
| Issue: | 75 |
| 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 |
