Heavy-light mesons on the light front
Abstract We study the heavy-light mesons within basis light-front quantization. The resulting mass spectra of D, $$D_s$$ Ds , B, and $$B_s$$ Bs agree reasonably well with experiments. We also predict states which could be measured in the near future. In the light-front formalism, we calculate the li...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2020-06-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-020-8081-9 |
| Summary: | Abstract We study the heavy-light mesons within basis light-front quantization. The resulting mass spectra of D, $$D_s$$ Ds , B, and $$B_s$$ Bs agree reasonably well with experiments. We also predict states which could be measured in the near future. In the light-front formalism, we calculate the light-front wave functions and additional experimental observables, such as parton distribution functions, distribution amplitudes, and decay constants by means of integrations over light-front wave functions. We also provide ratios of decay constants for selected pseudoscalar meson decays ($$D_s$$ Ds to D and $$B_s$$ Bs to B) as they may prove to be theoretically more robust and more reliably determined in experiments. We find that our ratios are systematically smaller than existing experiments and other approaches by 5–18%. |
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| ISSN: | 1434-6044 1434-6052 |