A Study of Excited ${\Omega }_b^{-}$ States in Hypercentral Constituent Quark Model via Artificial Neural Network

Abstract

In this work, we have obtained mass spectra, radiative decay widths and strong decay widths of newly observed excited ${\Omega }_b^{-}$ states, i.e. ${\Omega }_b(6316{)}^{-}$, ${\Omega }_b(6330{)}^{-}$, ${\Omega }_b(6340{)}^{-}$, and ${\Omega }_b(6350{)}^{-}$. Mass spectrum is obtained in Hypercentral Constituent Quark Model (hCQM) by solving six-dimensional nonrelativistic Schrödinger equation via Artificila Neural Network (ANN). In this respect, radiative decay widhts are calculated by a generalization of a framework from meson to baryon. Also, strong decay widths of the low-lying ${\Omega }_b$ states within ${}^3{P}_0$ model are calculated. Obtained results are presented with the comparison of available experimental data and other theoretical studies.

9 pages, 3 tables, 3 figures; slight modifications on the text, numerical results revised, main conclusions unchanged

References in corpus (10)

• Heavy Baryons in a Quark Model
• Charmonium
• Spectroscopy and Regge trajectories of heavy baryons in the relativistic quark-diquark picture
• Masses of excited heavy baryons in the relativistic quark-diquark picture
• Faddeev study of heavy baryon spectroscopy
• Nonperturbative determination of the QCD potential at O(1/m)
• Strong and radiative decays of the low-lying $S$- and $P$-wave singly heavy baryons
• Charmonium spectrum and their electromagnetic transitions with higher multipole contributions
• Excited State Mass spectra of doubly heavy baryons ${\Omega }_{cc}$, ${\Omega }_{bb}$ and ${\Omega }_{bc}$
• Analysis of the $1/2^{-}$ and $3/2^{-}$ heavy and doubly heavy baryon states with QCD sum rules

Cited by in corpus (10)

• An updated review of the new hadron states
• Masses and radiative decay widths of S- and P-wave singly-, doubly- and triply-heavy charm and bottom baryons
• Systematic analysis of single heavy baryons ${\Lambda }_Q$, ${\Sigma }_Q$ and ${\Omega }_Q$
• Mass Spectra and Decay Properties of Singly Heavy Bottom-Strange Baryons
• Interpretation of excited ${\Omega }_b$ signals
• A Mixing Coupling Scheme for Spectra of Singly Heavy Baryons with Spin-1 Diquarks in P-waves
• Decay widths and mass spectra of single bottom baryons
• Strong decays of the low-lying $1P$- and $1D$-wave ${\Sigma }_c$ baryons
• Toward establishing the low-lying $P$-wave excited ${\Sigma }_c$ baryon states
• Predicting the Masses of Exotic Hadrons with Data Augmentation Using Multilayer Perceptron