Mass spectra of charmed hadrons in a screened potential model

Abstract The spectra of charmed hadrons ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>c</mml:mi> <mml:mover accent="true"> <mml:mrow> <mml:mi>c</mml:mi> </mml:mrow> <mml:mrow> <mml:mo stretchy="true">¯</mml:mo> </mml:mrow> </mml:mover> </mml:math> and ccc baryons) and cc-diquarks are evaluated using a non-relativistic screened potential model. In this work, the central potential is composed of short-range coulomb-like and long-range screened confinement potential. Along with these, we have incorporated the O (1/ m ) corrections predicted from pNRQCD and lattice studies into the potential. We solve the non-relativistic Schrodinger equation numerically using the Matrix-Numerov method to evaluate the spectra of charmed hadrons. We interpret χ c 2 (3930) and χ c 1 (4140) as P -wave charmonium states and ψ 2 (3823) and ψ (4360) as D -wave charmonium states. The masses of triply charmed baryons are evaluated within the quark-diquark approach. Various radial and orbital excitations of the diquarks and the diquark-quark systems have been considered in this work. We have also carried out a sensitivity analysis of the model parameters for S -wave charmonium states to determine the sensitivity of mass spectra on the model parameters.