Strong decay widths and mass spectra of charmed baryons

Abstract

The total decay widths of the charmed baryons are calculated by means of the ${}^3{P}_0$ model. Our calculations consider in the final states: the charmed baryon-(vector/pseudoscalar) meson pairs and the (octet/ decuplet) baryon-(pseudoscalar/vector) charmed meson pairs, within a constituent quark model. Furthermore, we calculate the masses of the charmed baryon ground states and their excitations up to the $D$-wave in a constituent quark model both in the three-quark and in the quark-diquark schemes, utilizing a Hamiltonian model based on a harmonic oscillator potential plus a mass splitting term that encodes the spin, \mbox{spin-orbit}, isospin, and flavor interactions. The parameters of the Hamiltonian model are fitted to the experimental data of the charmed baryon masses and decay widths. As the experimental uncertainties of the data affect the fitted model parameters, we have thoroughly propagated these uncertainties into our predicted charmed baryon masses and decay widths via a Monte Carlo bootstrap approach, which is often absent in other theoretical studies on this subject. Our quantum number assignments and predictions of the masses and strong partial decay widths are in reasonable agreement with the available data. Thus, our results show the ability to guide future measurements in LHCb, Belle and Belle II experiments. Finally, the appendices provide some details of our calculations, in which we include the flavor coupling coefficients, which are useful for further theoretical investigations.

29 pages, 12 figures

References in corpus (23)

• Array Programming with NumPy
• Heavy Baryons in a Quark Model
• 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
• Strong Decays of Charmed Baryons in Heavy Hadron Chiral Perturbation Theory
• Strong decays of charmed baryons
• Strong and radiative decays of the low-lying $S$- and $P$-wave singly heavy baryons
• Charmed baryon strong decays in a chiral quark model
• P-wave charmed baryons from QCD sum rules
• Low-lying charmed and charmed-strange baryon states
• Structure of charmed baryons studied by pionic decays
• D-wave charmed and bottomed baryons from QCD sum rules
• Masses of Light and Heavy Mesons and Baryons: A Unified Picture
• Observation of excited ${\Omega }_c^0$ baryons in ${\Omega }_b^{-}\to {\Xi }_c^{+}{K}^{-}{\pi }^{-}$ decays
• $P$-wave charmed baryons of the $SU(3)$ flavor $6_F$
• Relativistic corrections to decays of heavy baryons in the quark model
• Strong Decays of observed ${\Lambda }_c$ Baryons in the ${}^3{P}_0$ Model
• Understanding the newly observed ${\Xi }_c^0$ states through their decays
• Heavy baryon spectrum with chiral multiplets of scalar and vector diquarks
• Heavy-baryon quark model picture from lattice QCD
• Measurement of the Masses and Widths of the ${\Sigma }_c(2455{)}^{+}$ and ${\Sigma }_c(2520{)}^{+}$ Baryons
• Toward establishing the low-lying $P$-wave excited ${\Sigma }_c$ baryon states

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• The newly observed ${\Omega }_c(3327)$: A good candidate for a $D$-wave charmed baryon
• Investigating the spectroscopy behavior of undetected $1F$-wave charmed baryons
• Refining radiative decay studies in singly heavy baryons
• Heavy baryons in the relativized quark model with chromodynamics
• Strong decays of singly heavy baryons from a chiral effective theory of diquarks
• Decay widths and mass spectra of single bottom baryons
• Observation of a new charmed baryon decaying to ${\Xi }_c^{+}{\pi }^{-}{\pi }^{+}$
• Chiral effective theory of scalar and vector diquarks revisited