Strong decays of the higher excited ${\Lambda }_Q$ and ${\Sigma }_Q$ baryons

Abstract

In this work, we preform a systematic study of the strong decays for the higher singly heavy baryon resonances ${\Lambda }_Q(3S)$, ${\Lambda }_Q(2P)$, ${\Lambda }_Q(2D)$, ${\Lambda }_Q(1F)$, ${\Sigma }_Q(3S)$, ${\Sigma }_Q(2P)$, ${\Sigma }_Q(2D)$, and ${\Sigma }_Q(1F)$ within the ${}^3{P}_0$ model. Our results show that most of the $\lambda -$mode higher excited ${\Lambda }_Q$ and ${\Sigma }_Q$ states have a relatively narrow width, and mainly decay into two-body final states with one heavy meson plus one light baryon. Our calculations provide abundant theoretical information and demonstrate the general feature for these higher states, which may be valuable for future experimental searches and establishing the singly heavy baryon spectrum.

arXiv comment16 pages, 9 figures, 17 tables, version accepted by Physical Review D

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• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
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• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
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• Strong decays of the low-lying bottom strange baryons
• The newly observed ${\Omega }_c(3327)$: A good candidate for a $D$-wave charmed baryon
• Systematic analysis of strange single heavy baryons ${\Xi }_c$ and ${\Xi }_b$
• Investigating the spectroscopy behavior of undetected $1F$-wave charmed baryons
• ${\Lambda }_c(2910)$ and ${\Lambda }_c(2940)$ as the conventional baryons dressed with the $D^{\ast }N$ channel
• ${\Lambda }_b(6146{)}^0$ state newly observed by LHCb
• Strong decay properties of single heavy baryons ${\Lambda }_Q$, ${\Sigma }_Q$ and ${\Omega }_Q$
• New ${\Lambda }_b(6072{)}^0$ state as a $2S$ bottom baryon
• The newly observed ${\Lambda }_b(6072{)}^0$ structure and its $\rho -$mode nonstrange partners
• The $1D$, $2D$ ${\Xi }_b$ and ${\Lambda }_b$ baryons
• Strong decays of singly heavy baryons from a chiral effective theory of diquarks
• Decay widths and mass spectra of single bottom baryons
• Doubly charmed hexaquarks in the diquark picture
• Heavy quark dominance in orbital excitation of singly and doubly heavy baryons
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• Light meson emissions of the selected charmonium-like states within compact tetraquark configurations
• Mass spectra of singly heavy baryons in the relativized quark model with heavy-quark dominance
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• Chiral effective theory of scalar and vector diquarks revisited