An efficient method for obtaining the ground and excited states mass spectrum of doubly heavy baryons
Department of Basic Sciences, Shahrood Branch, Islamic Azad University, Shahrood, Iran
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Accepted: 11 August 2018
Published online: 16 October 2018
In this paper, we obtained the ground state masses and the positive and negative parity excited state masses of doubly heavy baryons. For this goal we have analytically solved the radial Schrödinger equation for three identical particles with the hypercentral potential by using the ansatz method. In this study the hypercentral potential is regarded as a combination of the color Coulomb plus linear confining term and the six-dimensional harmonic oscillator potential which has a two-body character and turns out to be exactly hypercentral. We also added the first-order correction and the spin-dependent part contains three types of interaction terms (the spin-spin term, spin-orbit term and tensor term) to the hypercentral potential. Our calculations have been performed for the radial excited states as well as orbital excited states for , and systems. The masses obtained are compared with other theoretical reports, which could be a benefit tool for the interpretation of experimentally unknown doubly heavy baryons spectrum. The doubly heavy baryons masses are experimentally unknown so that the Regge trajectories are plotted using calculated masses to assign the quantum numbers of baryons unknown states.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2018