Spectrum of nonstrange singly charmed baryons in the constituent quark model

TL;DR

This paper calculates the mass spectra, decay rates, and electromagnetic properties of nonstrange singly charmed baryons using a hypercentral Constituent Quark Model, comparing results with experiments and other theories.

Contribution

It introduces a comprehensive analysis of excited states, decay modes, and electromagnetic properties of these baryons within a unified theoretical framework.

Findings

Mass spectra agree with experimental data and other models.

Constructed Regge trajectories in the (J, M^2) plane.

Predicted decay widths and magnetic moments for ground states.

Abstract

We study the masses of radial and orbital excited states of nonstrange singly charmed baryons in the framework of hypercentral Constituent Quark Model (hCQM). To obtain the mass spectra, the Coulomb plus screened potential is employed with the first order correction, which gives a relativistic effect of order $\cal{O}$$(1/m)$. The spin-spin, spin-orbit and tensor interactions are included (perturbatively as a spin dependent potential) in order to generate the splitting in mass spectra. We compare our computed mass spectra of nonstrange singly charmed baryons with the other theoretical predictions as well as with the experimental observations. We construct the Regge trajectories of these baryons in the $(J, M^2)$ plane. Further, we analyze the strong one pion decay rates for $S$, $P$ and the $D$-wave transitions in the framework of Heavy Hadron Chiral Perturbation Theory (HHChPT). Moreover, the electromagnetic properties like magnetic moments, transition magnetic moments and the radiative decay widths are determined for the ground state of these baryons in the constituent quark model.