Theoretical interpretation of ${\Xi }_c(2970)$

Abstract

The open charm strong decay widths and certain ratio of branching fractions of a charmed strange baryon ${\Xi }_c(2970)$ are calculated in a ${}^3{P}_0$ model. The results are compatible with the latest experimental data. The theoretical ratio of decay branching fractions $R=\mathcal{B}[{\Xi }_c(2970{)}^{+}\to {\Xi }_c(2645{)}^0{\pi }^{+}]/\mathcal{B}[{\Xi }_c(2970{)}^{+}\to {\Xi }_c^{\prime 0}{\pi }^{+}]\approx 1.0$. The spin-parity $J^P=1/2^{+}$ and $3/2^{+}$ for different assignments are analyzed. From the results of our calculation, ${\Xi }_c(2970)$ can be interpreted as a $2S$-wave state with $J^P(s_l)=1/2^{+}(0)$. The distinguishing between the 2S-wave $n_{\rho }$- and $n_{\lambda }$-excitation states and between states with $s_l=0$ and $s_l=1$ and between states with total spin $1/2$ and $3/2$($s_l=1$) are also discussed.

arXiv comment5 pages, 1figuure, revtex4-1, pdflatex

References in corpus (14)

• Baryon spectroscopy
• Spectroscopy and Regge trajectories of heavy baryons in the relativistic quark-diquark picture
• Quasi-Two-Body Decays of Nonstrange Baryons
• On the Mechanism of Open-Flavor Strong Decays
• Observation of New States Decaying into ${\Lambda }_c^{+}{K}^{-}{\pi }^{+}$ and ${\Lambda }_c^{+}{K}_S^0{\pi }^{-}$
• Dynamics and Decay of Heavy-Light Hadrons
• Strong Decays of Charmed Baryons in Heavy Hadron Chiral Perturbation Theory
• Strong decays of charmed baryons
• Assignments of ${\Lambda }_Q$ and ${\Xi }_Q$ baryons in the heavy quark-light diquark picture
• The $\xi (2220)$ Revistited
• Distinguishing Among Strong Decay Models
• A Study of Excited Charm-Strange Baryons with Evidence for new Baryons Ξ_c(3055)^+ and Ξ_c(3123)^+
• Charm-strange baryon strong decays in a chiral quark model
• Study of $2S$- and $1D$- excitations of observed charmed strange baryons

Cited by in corpus (4)

• 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
• ${\Xi }_c(3055)$ as a scaling point to establish the excited ${\Xi }_c^{(\prime )}$ family