https://doi.org/10.1140/epjc/s10052-020-8081-9
Regular Article - Theoretical Physics
Heavy-light mesons on the light front
1
Department of Physics and Astronomy, Iowa State University, Ames, IA, 50011, USA
2
School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
* e-mail: leeyoung@iastate.edu
Received:
17
March
2020
Accepted:
23
May
2020
Published online:
11
June
2020
We study the heavy-light mesons within basis light-front quantization. The resulting mass spectra of D, 
, B, and 
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 ( to D and 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%.
© The Author(s), 2020
