Spectrum of strange singly charmed baryons in the constituent quark model

Abstract

Excited states masses of the strange singly charmed baryons are calculated using the non-relativistic approach of hypercentral Constituent Quark Model (hCQM). The hyper-Coulomb plus screened potential is used as a confinement potential with the first order correction. The spin-spin, spinorbit and spin-tensor interaction terms are included perturbatively. Our calculated masses are allowed to construct the Regge trajectories in both (n r , M 2 ) and (J, M 2 ) planes. The mass spectra and the Regge trajectories study predict the spin-parity of Ξ c (2970) +/0 , Ξ c (3080) +/0 , Ξ c (3123) + , Ω c (3000) 0 and Ω c (3119) 0 baryons. Moreover, the strong one pion decay rates of the isodoublet states of Ξ c (2645), Ξ c (2790) and Ξ c (2815) are analyzed in the framework of Heavy Hadron Chiral Perturbation Theory (HHChPT). Also, the ground state magnetic moments and the radiative decay rates based on the transition magnetic moments are calculated in the framework of constituent quark model.

Ground and Excited state masses of $Ω_c^0$, $Ω_{cc}^+$ and $Ω_{ccc}^{++}$ baryons

“…• Ω c baryon :Our calculated masses in (J, M 2 ) plane for Ω 0 c baryon are shown in Table II and Table III for natural and unnatural parity states respectively. Firstly we compared our predicted ground state masses with experimently available data [1,2,17] and other theoretical predictions [20,21,23,24,30,41,42]. Our results are very close to [17] with a slight mass difference of 7-8…”

“…MeV and also they are in good agreement with Refs. [20,21,23,41]. Further the excited state masses are compared with other theoretical outcomes.…”

“…Many theoretical studies shows that the slopes of Regge trejectories decreases with increasing quark masses 3.050 Belle [2] 3.050 PDG [17] 2.695 3.050 Ref. [20] 2.696 2.968 3.251 3.519 3.783 Ref. [21] 2.695 3.024 3.299 3.565 Ref.…”

“…The authors of Refs. [18][19][20][21] calculate the excited state masses of singly, doubly and triply heavy baryons using non-relativistic approach of hypercentral constituent quark model (hCQM). In Ref.…”

Spectroscopic Properties of Light Baryon

“…The Schrodinger equation with the hyper-radial part is numerically solved for calculating the excited state masses [28]. Details of the model can be found in our other articles [31][32][33][34][35][36].…”