Probing the nature of Z_c states via the eta_c rho decay

Abstract

The nature of the so-called XYZ states is a long-standing problem. It has been suggested that such particles may be described as compact four-quark states or loosely bound meson molecules. In the present work we analyze the Z_c(') -> eta_c rho decay using both approaches. Such channel might provide useful insights on the nature of the Z_c('), helping discriminating between the two different models.

10 pages, 6 figures, 3 tables. Version accepted on Phys.Lett.B

References in corpus (17)

• Big-Bang Nucleosynthesis
• Observation of the resonant character of the $Z(4430{)}^{-}$ state
• The Z(4430) and a New Paradigm for Spin Interactions in Tetraquarks
• Excited and exotic charmonium spectroscopy from lattice QCD
• Hadro-Charmonium
• Four-Quark Hadrons: an Updated Review
• Pion Interactions in the X(3872)
• A New Picture for the Formation and Decay of the Exotic $XYZ$ Mesons
• Confirming the molecular nature of the $Z_b(10610)$ and the $Z_b(10650)$
• Heavy quarkonium hybrids from Coulomb gauge QCD
• Implications of heavy quark spin symmetry on heavy meson hadronic molecules
• Hidden-Beauty Charged Tetraquarks and Heavy Quark Spin Conservation
• Production of Tetraquarks at the LHC
• Exotic Heavy Quarkonium Spectroscopy: A Mini-review
• More hidden heavy quarkonium molecules and their discovery decay modes
• Systematic Study on QCD Interactions of Heavy Mesons with $\rho$ Meson
• Systematic Study of Hadronic Molecules in the Heavy-Quark Sector

Cited by in corpus (13)

• Multiquark Resonances
• Hadronic molecules in B decays
• Treating $Z_c(3900)$ and $Z(4430)$ as the ground-state and first radially excited tetraquarks
• Magnetic and quadrupole moments of the $Z_c(3900)$
• Importance of meson-meson and of diquark-antidiquark creation operators for a $\bar{b}\bar{b}ud$ tetraquark
• The hidden-charm strong decays of the $Z_c$ states
• Decay behaviors of the fully-bottom and fully-charm tetraquark states
• Double Exotic States Productions in Pion and Kaon Induced Reactions
• A note on the newly observed Y(4220) resonance
• Decay properties of the $Z_c(3900)$ through the Fierz rearrangement
• Radiative decays of the neutral $Z_c(3900)$ and $Z_c(4020)$
• Interaction of exotic states in a hadronic medium: the $Z_c(3900)$ case
• Exotic Charmonium at BESIII