https://doi.org/10.1140/epja/s10050-023-01058-9
Regular Article - Theoretical Physics
Radiative and semileptonic decay widths of heavy ground state baryons in diquark model
1
Department of Physics, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran
2
Faculty of Physics, Yazd University, P. O. Box 89195-741, Yazd, Iran
Received:
22
March
2023
Accepted:
12
June
2023
Published online:
27
July
2023
Study of heavy hadrons properties is of great interest to understand the dynamics of QCD at the hadronic scale. In this regard, there are many experimental and theoretical investigations on the static properties of heavy baryons. Nevertheless, there exist wide disparities among theoretical predictions. In this work, we analytically study the mass spectra, the semileptonic and radiative decay widths of singly and doubly heavy flavored baryons in a relativistic quark-diquark model. To this aim, we first solve the Bethe–Salpeter differential equation to find the binding energy equation of a two-body system. Interaction between flavors is considered as the sum of Hellmann potential, Goldstone-Boson exchange potential and a nonperturbative contribution. Having the energy equation and the wave function of bound states we will compute the mass, the radiative and the semileptonic decay widths and the branching ratio of single and double heavy flavored baryons. Our analytical results will be compared with other theoretical results as well as available experimental data.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
