Inclusion of heavy spin effects in the udb¯b¯ I(JP)=0(1−) four-quark channel in the Born-Oppenheimer approximation
- We refine our previous study of a udb¯b¯ tetraquark resonance with quantum numbers I(JP)=0(1−), which is based on antiheavy-antiheavy lattice QCD potentials, by including heavy quark spin effects via the mass difference of the B and the B∗ meson. This leads to a coupled channel Schrödinger equation, where the two channels correspond to BB and B∗B∗, respectively. We search for T matrix poles in the complex energy plane, but do not find any indication for the existence of a tetraquark resonance in this refined coupled channel approach. We also vary the antiheavy-antiheavy potentials as well as the b quark mass to further understand the dynamics of this four-quark system.
| Author: | Jakob Hoffmann, André Zimermmane-SantosORCiD, Marc WagnerORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-705603 |
| DOI: | https://doi.org/10.48550/arXiv.2211.15765 |
| ArXiv Id: | http://arxiv.org/abs/2211.15765 |
| Document Type: | Conference Proceeding |
| Language: | English |
| Date of Publication (online): | 2022/11/28 |
| Date of first Publication: | 2022/11/28 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Contributing Corporation: | International Symposium on Lattice Field Theory (39. : 2022 : Bonn) |
| Release Date: | 2023/01/24 |
| 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 |
