Strong $Z_c^{+}(3900)\to J/\psi {\pi }^{+};{\eta }_c{\rho }^{+}$ decays in QCD

Abstract

The widths of the strong decays $Z_c^{+}(3900)\to J/\psi {\pi }^{+}$ and $Z_c^{+}(3900)\to {\eta }_c{\rho }^{+}$ are calculated. To this end, the mass and decay constant of the exotic $Z_c^{+}(3900)$ state are computed by means of a two-point sum rule. The obtained results are then used to calculate the strong couplings $g_{Z_{c}J/\psi \pi }$ and $g_{Z_c{\eta }_c\rho }$ employing QCD sum rules on the light-cone supplied by a technique of the soft-meson approximation. We compare our predictions on the mass and decay widths with available experimental data and other theoretical results.

11 Pages, 3 Figures and 2 Tables; To be published by Physical Review D

References in corpus (13)

• Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts
• Charmonium
• The Exotic XYZ Charmonium-like Mesons
• Excited and exotic charmonium spectroscopy from lattice QCD
• Hadro-Charmonium
• Four-Quark Hadrons: an Updated Review
• Charmonium excited state spectrum in lattice QCD
• Exotic Heavy Quarkonium Spectroscopy: A Mini-review
• Probing the nature of Z_c states via the eta_c rho decay
• Radiative and dilepton decays of the hadronic molecule Zc(3900)+
• Deep Inelastic Pion Electroproduction at Threshold
• Mass spectrum of the axial-vector hidden charmed and hidden bottom tetraquark states
• Threshold Pion Electroproduction at Large Momentum Transfers

Cited by in corpus (60)

• Multiquark Resonances
• Pentaquark and Tetraquark states
• QCD Sum Rules Approach to the $X,Y$ and $Z$ States
• Analysis of $P_c^{+}(4380)$ and $P_c^{+}(4450)$ as pentaquark states in the molecular picture with QCD sum rules
• Heavy hadronic molecules with pion exchange and quark core couplings: a guide for practitioners
• Hadronic molecules in B decays
• Mass and decay constant of the newly observed exotic $X(5568)$ state
• Treating $Z_c(3900)$ and $Z(4430)$ as the ground-state and first radially excited tetraquarks
• Width of the exotic $X_b(5568)$ state through its strong decay to $B_s^0{\pi }^{+}$
• The decay width of the $Z_c(3900)$ as an axialvector tetraquark state in solid quark-hadron duality
• New scalar resonance $X_0(2900)$ as a ${\overline{D}}^{\ast }{K}^{\ast }$ molecule: Mass and width
• Analysis of the hidden-charm tetraquark mass spectrum with the QCD sum rules
• Charmed partner of the exotic $X(5568)$ state and its properties
• Landau equation and QCD sum rules for the tetraquark molecular states
• New charged resonance $Z_c^{-}(4100)$: the spectroscopic parameters and width
• Exploring the resonances $X(4140)$ and $X(4274)$ through their decay channels
• Magnetic and quadrupole moments of the $Z_c(3900)$
• Magnetic dipole moment of the $Z_{cs}(3985)$ state: diquark-antidiquark and molecular pictures
• Application of the QCD light cone sum rule to tetraquarks: the strong vertices $X_b{X}_b\rho$ and $X_c{X}_c\rho$
• Nature of the vector resonance $Y(2175)$
• The hidden-charm strong decays of the $Z_c$ states
• Resonance $Y(4660)$ as a vector tetraquark and its strong decay channels
• Open charm-bottom scalar tetraquarks and their strong decays
• Vector resonance $X_1(2900)$ and its structure
• Modeling the resonance $T_{cs0}^a(2900{)}^{++}$ as a hadronic molecule $D^{\ast +}{K}^{\ast +}$
• Decay behaviors of the fully-bottom and fully-charm tetraquark states
• Semileptonic and nonleptonic decays of the axial-vector tetraquark $T_{bb;\overline{u}\overline{d}}^{-}$
• The magnetic moment of the $Z_c(3900)$ as an axialvector tetraquark state with QCD sum rules
• Triply-charmed dibaryon states or two-baryon scattering states from the QCD sum rules?
• Electromagnetic form factors of the $B_c$-like tetraquarks: molecular and diquark-antidiquark pictures
• Open charm-bottom axial-vector tetraquarks and their properties
• Two-particle contributions and nonlocal effects in the QCD sum rules for the axialvector tetraquark candidate $Z_c(3900)$
• Testing the doubly charged charm-strange tetraquarks
• Spectroscopic parameters and decays of the resonance $Z_b(10610)$
• Analysis of strong decays of the $Z_c(4600)$ with the QCD sum rules
• Evidence for $Z_c^{\pm }$ decays into the ${\rho }^{\pm }{\eta }_c$ final state
• Light axial-vector and vector resonances $X(2100)$ and $X(2239)$
• Radiative and $\rho$ transitions between heavy quarkonium and isovector four-quark states
• Understanding the ${\eta }_c\rho$ decay mode of $Z_c^{(\prime )}$ via the triangle loop mechanism
• Is the resonance $X_0(2900)$ a ground-state or radially excited scalar tetraquark $[ud][\overline{c}\overline{s}]$?
• Resonance $X(4630)$
• Decay modes of the scalar exotic meson $T_{bs;\overline{u}\overline{d}}^{-}$
• Resonance $X(5568)$ as an exotic axial-vector state
• Decay properties of the $Z_c(3900)$ through the Fierz rearrangement
• Probing an axial-vector tetraquark $Z_s$ via its semileptonic decay $Z_s\to X(4274)\overline{l}{\nu }_l$
• Analysis of the triply-charmed pentaquark states with QCD sum rules
• The strong decays of the light scalar mesons $f_0(500)$ and $f_0(980)$
• The new $a_1(1420)$ state: structure, mass and width
• Properties of $Z_c(3900)$ tetraquark in a cold nuclear matter
• Triply-charmed hexaquark states with the QCD sum rules
• Universal non-resonant explanation to charmoniumlike structures $Z_c(3885)$ and $Z_c(4025)$
• Axial-vector and pseudoscalar tetraquarks $[ud][\bar{c}\bar{s}]$
• Modifications on parameters of $Z(4430)$ in a dense medium
• Impact of QCD sum rules coupling constants on neutron stars structure
• Studying the bound state of the $B\bar{K}$ system in the Bethe-Salpeter formalism
• The strong coupling $g_{XJ/\psi \varphi }$ of $X(4700)\to J/\psi \varphi$ in the light-cone sum rules
• Two-body strong decays of the hidden-charm tetraquark molecular states via the QCD sum rules
• Baryons and baryoniums in the perspective of QCD sum rules
• Rare Radiative Decays of Vector and Axial-Vector $B_c$ Mesons to $(D_s,D_s^{\ast },D_{s1})$ Final States
• The effects of polarization on the observables in the decay ${\Xi }_{cc}^{++}\to {\Xi }_c^{+}\bar{\ell }{\nu }_{\ell }$