$d^{\ast }(2380)$ and its partners in a diquark model

Abstract

The purpose of the present study was to explore the possibility of accommodating the $d^{\ast }(2380)$ and its flavor SU(3) partners in a diquark model. Proposing that $d^{\ast }(2380)$ is composed of three vector diquarks, its mass is calculated by use of an effective Hamiltonian approach and its decay width is estimated by considering the effects of quark tunneling from one diquark to the others and the decays of the subsequent two-baryon bound state. Both the obtained mass and decay width of $d^{\ast }(2380)$ are in agreement with the experimental data, with the unexpected narrow decay width being naturally explained by the large tunneling suppression of a quark between a pair of diquarks. The masses and decay widths of the flavor SU(3) partners of $d^{\ast }(2380)$ are also predicated within the same diquark scenario.

arXiv comment5 pages, 1 figure

References in corpus (19)

• Diquark-Antidiquarks with Hidden or Open Charm and the Nature of X(3872)
• Heavy-Quark QCD Exotica
• Exotica
• A new look at scalar mesons
• Pentaquark states in a diquark-triquark model
• On the History of Dibaryons and their Final Observation
• A Theory of X and Z Multiquark Resonances
• Novel Six-Quark Hidden-Color Dibaryon States in QCD
• Three-body model calculations of Nucleon-Delta and Delta-Delta dibaryon resonances
• Dynamical calculation of the $\Delta \Delta$ dibaryon candidates
• QCD sum rule Study of the $d^{\ast }(2380)$
• Decay width of $d^{\ast }(2380)\to NN\pi \pi$ processes
• Decay width of $d^{\ast }(2380)\to NN\pi$ process in a chiral constituent quark model
• Nucleon-nucleon interaction in a chiral SU(3) quark model revisited
• On the width of N-Delta and Delta-Delta states
• 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
• On the charge distribution of $d^{\ast }(2380)$
• Spin-1 diquark contributing to the formation of tetraquarks in light mesons

Cited by in corpus (10)

• Hidden charm tetraquark states in a diquark model
• Hidden charm pentaquark states in a diquark model
• Hexaquark picture for $d^{\ast }(2380)$
• Dibaryons: Molecular versus Compact Hexaquarks
• Towards the decay properties of deuteron-like state $d_{N\Omega }$
• A diquark model for the d*(2380) dibaryon resonance?
• Isospin symmetry breaking in double-pion production in the region of $d^{\ast }(2380)$ and the scalar $\sigma$ meson
• Is $d^{\ast }(2380)$ a compact hexaquark state?
• Production of dibaryon $d_{N\Omega }$ in kaon induced reactions
• Possible dibaryon production at $\bar{\mathrm{P}}$anda with a Lagrangian approach