Regular Article - Theoretical Physics
Mass spectroscopy and strong decays of excited open charm mesons using relativistic Dirac formalism
Department of Physics, Sardar Patel University, Vallabh Vidyanagar, 388120, Gujarat, India
2 P. D. Patel Institute of Applied Sciences, Charusat, Changa, India
Accepted: 11 October 2021
Published online: 22 October 2021
The mass spectra for the heavy-light or d charmed mesons are computed based on a relativistic framework. The low-lying 1P states are found to be in an excellent agreement with the PDG reported values. Using the computed mass spectra and following effective Lagrangian approach based on heavy quark and chiral symmetry, the OZI allowed two body strong decays are computed. The computed decay rates, ratios and branching fractions allow us to identify the proper spin-parity assignments of the newly observed charm states. Accordingly, we could identify as , as , as , as , as , as and as open charm states. The effective coupling constants, , , , and extracted from the present study are found to be in accordance with the reported values. These coupling constants would be useful in further investigations. We found as a favorable channel for the experimental search of the missing state.
© The Author(s) 2021
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