Photo-absorption on deuteron contributed by d^*(2380) resonance

Abstract

In order to understand the possible physical nature of the newly observed resonance $d^{\ast }(2380)$, we calculate the real photo-absorption cross section on deuteron contributed by the resonance $d^{\ast }(2380)$ by considering the electromagnetic transition amplitude of $\gamma +d\to d^{\ast }(2380)$. In our interpretation, the $d^{\ast }(2380)$ is regarded as a compact six-quark system with mainly two components of $\Delta \Delta$ and hidden-color clusters $C_8{C}_8$. We find that only the next-to-leading terms contribute the $\gamma +d\to d^{\ast }(2380)$ and the obtained photo-absorption cross section is quite small which is in the order of 10 $nb$. Compared with data measured at ELPH and Mainz recently, it is almost about 20 times smaller.

arXiv comment14pages, 2figures

References in corpus (45)

• Hadronic molecules
• The hidden-charm pentaquark and tetraquark states
• Diquark-Antidiquarks with Hidden or Open Charm and the Nature of X(3872)
• QCD and strongly coupled gauge theories: challenges and perspectives
• Electromagnetic excitation of the Delta(1232)-resonance
• Algebraic models of hadron structure: I. Nonstrange baryons
• The Z(4430) and a New Paradigm for Spin Interactions in Tetraquarks
• ABC Effect in Basic Double-Pionic Fusion --- Observation of a new resonance?
• Baryon Current Matrix Elements in a Light-Front Framework
• Double-Pionic Fusion of Nuclear Systems and the ABCEffect -- Aproaching a Puzzle by Exclusive and Kinematically Complete Measurements
• Evidence for a New Resonance from Polarized Neutron-Proton Scattering
• A New Picture for the Formation and Decay of the Exotic $XYZ$ Mesons
• An isobar model for eta photo- and electroproduction on the nucleon
• Nucleon Resonance Transition Couplings to Vector Mesons
• On the History of Dibaryons and their Final Observation
• Isospin Decomposition of the Basic Double-Pionic Fusion in the Region of the ABC Effect
• Novel Six-Quark Hidden-Color Dibaryon States in QCD
• Three-body calculation of the Delta-Delta dibaryon candidate D(03) at 2.37 GeV
• Three-body model calculations of Nucleon-Delta and Delta-Delta dibaryon resonances
• Electromagnetic Form Factors of the Nucleon in an Improved Quark Model
• Deltaron Dibaryon Structure in Chiral SU(3) Quark Model
• Quark models of dibaryon resonances in nucleon-nucleon scattering
• A chiral bag model approach to delta electroproduction
• A systematic study of longitudinal and transverse helicity amplidutes in the hypercentral Constituent Quark Model
• Pi0 photo- and electroproduction at threshold within a dynamical model
• The Nucleon-Nucleon Interaction in a Chiral Constituent Quark Model
• The QCD Dynamics of Tetraquark Production
• A study of $d^{\ast }(2380)\to d\pi \pi$ decay width
• ABC effect as a signal of chiral symmetry restoration in hadronic collisions
• The Gerasimov-Drell-Hearn Sum Rule and the Spin Structure of the Nucleon
• Decay width of $d^{\ast }(2380)\to NN\pi \pi$ processes
• The $d^{\ast }$(2380) dibaryon resonance width and decay branching ratios
• Hidden dibaryons in one- and two-pion production in NN collisions
• First measurement of coherent double neutral-pion photoproduction on the deuteron at incident energies below 0.9 GeV
• Measurements of the Delta(1232) Transition Form Factor and the Ratio sigma_nσ_p From Inelastic Electron-Proton and Electron-Deuteron Scattering
• Possible $H$-like dibaryon states with heavy quarks
• Decay width of $d^{\ast }(2380)\to NN\pi$ process in a chiral constituent quark model
• Diquarks and antiquarks in exotics: a menage a trois and a menage a quatre
• Exchange Currents in Photoproduction of Baryon Resonances
• Deuteron photodisintegration by polarized photons in the region of the $d^{\ast }(2380)$
• On the charge distribution of $d^{\ast }(2380)$
• On the form factors of $d^{\ast }(2380)$
• Helicity-dependent photoabsorption cross sections on the nucleon
• The opportunity to find ${\bar{d}}^{\ast }(2380)$ in the ${\rm Y}(nS)$ decay
• Constituent Counting Rules and Exotic Hadrons

Cited by in corpus (6)

• Selected strong decays of pentaquark State $P_c(4312)$ in a chiral constituent quark model
• Dibaryons: Molecular versus Compact Hexaquarks
• Evidence of a dibaryon spectrum in coherent ${\pi }^0{\pi }^{0}d$ photoproduction at forward deuteron angles
• Possible dibaryon production at $\bar{\mathrm{P}}$anda with a Lagrangian approach
• On Sequential Single-Pion Production in Double-Pionic Fusion
• Structure and Width of the d*(2380) Dibaryon