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arXiv · 1609.03030

Excited State Mass spectra of doubly heavy baryons $Ω_{cc}$, $Ω_{bb}$ and $Ω_{bc}$

Zalak Shah·Kaushal Thakkar·Ajay Kumar Rai
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Abstract

We discuss the mass spectrum of $Ω$ baryon with two heavy quarks and one light quark (\textit{ccs, bbs and bcs}). The main goal of the paper is to calculate the ground state masses and after that, the positive and negative parity excited states masses are also obtained within a Hypercentral Constituent quark model, using coulomb plus linear potential framework. We also added first order correction to the potential. The mass spectra upto 5S for radial excited states and 1P-5P, 1D-4D and 1F-2F states for orbital excited states are computed for $Ω_{cc}$, $Ω_{bb}$ and $Ω_{bc}$ baryons. Our obtained results are compared with other theoretical predictions which could be a useful complementary tool for the interpretation of experimentaly unknown heavy baryon spectra. The Regge trajectory is constructed in both ($n_r$, $M^{2}$) and ($J$, $M^{2}$) planes for $Ω_{cc}$,$Ω_{bb}$ and $Ω_{bc}$ baryons and their slopes and intercepts are also determined. Magnetic moments of doubly heavy $Ω'$s are also calculated.

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Zalak Shah, Kaushal Thakkar, Ajay Kumar Rai. 2016-09-10. Excited State Mass spectra of doubly heavy baryons $Ω_{cc}$, $Ω_{bb}$ and $Ω_{bc}$. https://doi.org/10.1140/epjc%2Fs10052-016-4379-z

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