Highly excited B, B s and B c meson spectroscopy from lattice QCD
Abstract Excited state spectra of B, B s and B c mesons are computed using lattice QCD. Working with a large basis of carefully constructed, approximately-local q q ¯ $$ q\overline{q} $$ -like operators we determine a rich spectrum of states up to J = 4 in B, B s and B c , that can be grouped into p...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-01-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP01(2025)123 |
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| author | Luke Gayer Sinéad M. Ryan David J. Wilson for the Hadron Spectrum collaboration |
| author_facet | Luke Gayer Sinéad M. Ryan David J. Wilson for the Hadron Spectrum collaboration |
| author_sort | Luke Gayer |
| collection | DOAJ |
| description | Abstract Excited state spectra of B, B s and B c mesons are computed using lattice QCD. Working with a large basis of carefully constructed, approximately-local q q ¯ $$ q\overline{q} $$ -like operators we determine a rich spectrum of states up to J = 4 in B, B s and B c , that can be grouped into patterns matching those of the quark model. In addition, hybrid-like states are identified at approximately 1500 MeV above the ground states in each of B, B s and B c , in a multiplet pattern already found in similar computations at a range of quark masses spanning light to bottom. This study is performed using an anisotropic, relativistic Wilson-clover action at a single spatial lattice spacing of a s ≈ 0.12 fm and with a light-quark mass corresponding to m π ≈ 391 MeV. We find good agreement with experimental results where known and discuss prospects for further work in interesting J P quantum numbers. |
| format | Article |
| id | doaj-art-10e2e6abb8c74755a5bfee3070ceffb1 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-10e2e6abb8c74755a5bfee3070ceffb12025-02-09T12:08:23ZengSpringerOpenJournal of High Energy Physics1029-84792025-01-012025112510.1007/JHEP01(2025)123Highly excited B, B s and B c meson spectroscopy from lattice QCDLuke Gayer0Sinéad M. Ryan1David J. Wilson2for the Hadron Spectrum collaborationHamilton Mathematics Institute & School of Mathematics, Trinity CollegeHamilton Mathematics Institute & School of Mathematics, Trinity CollegeDepartment of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of CambridgeAbstract Excited state spectra of B, B s and B c mesons are computed using lattice QCD. Working with a large basis of carefully constructed, approximately-local q q ¯ $$ q\overline{q} $$ -like operators we determine a rich spectrum of states up to J = 4 in B, B s and B c , that can be grouped into patterns matching those of the quark model. In addition, hybrid-like states are identified at approximately 1500 MeV above the ground states in each of B, B s and B c , in a multiplet pattern already found in similar computations at a range of quark masses spanning light to bottom. This study is performed using an anisotropic, relativistic Wilson-clover action at a single spatial lattice spacing of a s ≈ 0.12 fm and with a light-quark mass corresponding to m π ≈ 391 MeV. We find good agreement with experimental results where known and discuss prospects for further work in interesting J P quantum numbers.https://doi.org/10.1007/JHEP01(2025)123Hadronic SpectroscopyStructure and InteractionsLattice QCD |
| spellingShingle | Luke Gayer Sinéad M. Ryan David J. Wilson for the Hadron Spectrum collaboration Highly excited B, B s and B c meson spectroscopy from lattice QCD Journal of High Energy Physics Hadronic Spectroscopy Structure and Interactions Lattice QCD |
| title | Highly excited B, B s and B c meson spectroscopy from lattice QCD |
| title_full | Highly excited B, B s and B c meson spectroscopy from lattice QCD |
| title_fullStr | Highly excited B, B s and B c meson spectroscopy from lattice QCD |
| title_full_unstemmed | Highly excited B, B s and B c meson spectroscopy from lattice QCD |
| title_short | Highly excited B, B s and B c meson spectroscopy from lattice QCD |
| title_sort | highly excited b b s and b c meson spectroscopy from lattice qcd |
| topic | Hadronic Spectroscopy Structure and Interactions Lattice QCD |
| url | https://doi.org/10.1007/JHEP01(2025)123 |
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