Decay width of $d^{\ast }(2380)\to NN\pi$ process in a chiral constituent quark model

Abstract

The width of three-body single-pion decay process $d^{\ast }\to NN{\pi }^{0,\pm }$ is calculated by using the $d^{\ast }$ wave function obtained from our chiral SU(3) constituent quark model calculation. The effect of the dynamical structure on the width of $d^{\ast }$ is taken into account in both the single $\Delta \Delta$ channel and coupled $\Delta \Delta +CC$ two-channel approximations. Our numerical result shows that in the coupled-channel approximation, namely, the hidden-color configuration being considered, the obtained partial decay width of $d^{\ast }\to NN\pi$ is about several hundred $\mathrm{KeV}$, while in the single $\Delta \Delta$ channel it is just about $2\sim 3\mathrm{MeV}$. We, therefore, conclude that the partial width in the single-pion decay process of $d^{\ast }$ is much smaller than the widths in its double-pion decay processes. Our prediction may provide a criterion for judging different interpretations of the $d^{\ast }$ structure, as different pictures for the $d^{\ast }$ may result quite different partial decay width.

6 pages, 1 figure, and 1 table, typos corrected

References in corpus (10)

• Big-Bang Nucleosynthesis
• The hidden-charm pentaquark and tetraquark states
• ABC Effect in Basic Double-Pionic Fusion --- Observation of a new resonance?
• Double-Pionic Fusion of Nuclear Systems and the ABCEffect -- Aproaching a Puzzle by Exclusive and Kinematically Complete Measurements
• On the History of Dibaryons and their Final Observation
• Three-body model calculations of Nucleon-Delta and Delta-Delta dibaryon resonances
• Quark models of dibaryon resonances in nucleon-nucleon scattering
• A study of $d^{\ast }(2380)\to d\pi \pi$ decay width
• ABC effect as a signal of chiral symmetry restoration in hadronic collisions
• Decay width of $d^{\ast }(2380)\to NN\pi \pi$ processes

Cited by in corpus (15)

• The $d^{\ast }$(2380) dibaryon resonance width and decay branching ratios
• Selected strong decays of pentaquark State $P_c(4312)$ in a chiral constituent quark model
• Dibaryons: Molecular versus Compact Hexaquarks
• Properties of single cluster structure of $d^{\ast }(2380)$ in chiral SU(3) quark model
• Six-quark structure of $d^{\ast }(2380)$ in chiral constituent quark model
• $d^{\ast }(2380)$ and its partners in a diquark model
• On the form factors of $d^{\ast }(2380)$
• On the charge distribution of $d^{\ast }(2380)$
• Towards the decay properties of deuteron-like state $d_{N\Omega }$
• Photo-absorption on deuteron contributed by d^*(2380) resonance
• Possible molecular states from the $N\Delta$ interaction
• The opportunity to find ${\bar{d}}^{\ast }(2380)$ in the ${\rm Y}(nS)$ decay
• Phenomenological study on the decay widths of ${\rm Y}(nS)\to {\bar{d}}^{\ast }(2380)+X$
• Production of dibaryon $d_{N\Omega }$ in kaon induced reactions
• Structure and Width of the d*(2380) Dibaryon