b̄b̄ud tetraquark resonances in the Born-Oppenheimer approximation using lattice QCD potentials
- We study tetraquark resonances for a pair of static antiquarks b¯b¯ in presence of two light quarks ud based on lattice QCD potentials. The system is treated in the Born-Oppenheimer approximation and we use the emergent wave method. We focus on the isospin I = 0 channel but take different angular momenta l of the heavy antiquarks b¯b¯ into account. Further calculations have already predicted a bound state for the l = 0 case with quantum numbers I(JP) = 0(1+). Performing computations for several angular momenta, we extract the phase shifts and search for T and S matrix poles in the second Riemann sheet. For angular momentum l = 1, we predict a tetraquark resonance with quantum numbers I(JP) = 0(1−), resonance mass m = 10576+4−4 MeV and decay width Γ = 112+90−103 MeV, which decays into two B mesons.
| Author: | Martin PflaumerORCiDGND, Pedro BicudoORCiD, Marco CardosoORCiD, Antje Katharine PetersGND, Marc WagnerORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-846136 |
| DOI: | https://doi.org/10.22323/1.336.0123 |
| ISSN: | 1824-8039 |
| ArXiv Id: | http://arxiv.org/abs/1811.04724 |
| Parent Title (English): | Proceedings of Science |
| Publisher: | SISSA |
| Place of publication: | Trieste |
| Document Type: | Conference Proceeding |
| Language: | English |
| Date of Publication (online): | 2019/09/26 |
| Date of first Publication: | 2019/09/26 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Contributing Corporation: | Quark Confinement and the Hadron Spectrum (Veranstaltung (13. : 2018 : Maynooth) |
| Release Date: | 2024/07/03 |
| Volume: | 336.2019 |
| Issue: | 123 |
| Page Number: | 8 |
| 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 |
