Regge-like spectra of excited singly heavy mesons

Abstract

In this work, we study the Regge-like spectra of excited singly heavy mesons by proposing a general Regge-like mass relations in which the slope ratio ${\alpha }^{\prime }/{\beta }^{\prime }$ between the radial and angular-momentum Regge trajectories is $\pi /2$ and the hadron mass undergoes a shift including the heavy quark mass and an extra binding energy between heavy quark and strange anti-quark. The relation is successfully tested against the observed spin-averaged data of the singly heavy mesons in their radially and angularly excited states. Some new predictions are made for more excited excitations and the discussion is given associated with the QCD string (flux tube) picture.

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• Identification of newly observed singly charmed baryons using relativistic flux tube model
• Towards establishing an abundant $B$ and $B_s$ spectrum up to the second orbital excitations
• A Mixing Coupling Scheme for Spectra of Singly Heavy Baryons with Spin-1 Diquarks in P-waves
• The bottom-charmed meson spectrum from a QCD approach based on Tamm--Dancoff approximation
• Investigation of the mass spectra of singly heavy baryons ${\Sigma }_Q$, ${\Xi }_Q^{\prime }$ and ${\Omega }_Q$ $(Q=c,b)$ in the Regge trajectory model
• Regge trajectories for the heavy-light diquarks
• Regge trajectory relations for the universal description of the heavy-light systems: diquarks, mesons, baryons and tetraquarks
• Study of B, Bs mesons using heavy quark effective theory
• Revisiting the tensor $J^{PC}=2^{--}$ meson spectrum
• Hunting for the prospective $T_{cc}$ family based on the diquark-antidiquark configuration
• $\lambda$ and $\rho$ Regge trajectories for hidden bottom and charm tetraquarks $(Qq)(\bar{Q}{\bar{q}}^{\prime })$