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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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-01-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP01(2025)123 |
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| Summary: | 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. |
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| ISSN: | 1029-8479 |