Hidden-charmonium decays of $Z_c(3900)$ and $Z_c(4025)$ in intermediate meson loops model

Abstract

The BESIII collaboration reported an observation of two charged charmonium-like structure $Z_c^{\pm }(3900)$ and $Z_c^{\pm }(4025)$ in $e^{+}{e}^{-}\to (J/\psi \pi {)}^{\pm }{\pi }^{\mp }$ and $e^{+}{e}^{-}\to (D^{\ast }{\bar{D}}^{\ast }{)}^{\pm }{\pi }^{\mp }$ at $\sqrt{s}=4.26$ GeV recently, which could be an analogue of $Z_b(10610)$ and $Z_b(10650)$ claimed by the Belle Collaboration. In this work, we investigate the hidden-charmonium transitions of $Z_c^{\pm }(3900)$ and $Z_c^{\pm }(4025)$ via intermediate $D^{(\ast )}{D}^{(\ast )}$ meson loops. Reasonable results for the branching ratios by taking appropriate values of $\alpha$ in this model can be obtained, which shows that the intermediate $D^{(\ast )}{D}^{(\ast )}$ meson loops process may be a possible mechanism in these decays. Our results are consistent with the power-counting analysis, and comparable with the calculations in the framework of nonrelativistic effective field theory to some extent. We expect more experimental measurements on these hidden-charmonium decays and search for the decays of $Z_c\to D{\bar{D}}^{\ast }+c.c.$ and $Z_c^{\prime }\to D^{\ast }{\bar{D}}^{\ast }$, which will help us investigate the $Z_c^{(\prime )}$ decays deeply.

8 pages, 9 figures; Accepted by Eur. Phys. J. C. arXiv admin note: text overlap with arXiv:1212.3784

References in corpus (25)

• Heavy quarkonium: progress, puzzles, and opportunities
• Observation of a charged charmoniumlike structure in e+e- to pi+pi-J/psi at \sqrt{s}=4.26 GeV
• Study of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}J/\psi$ and Observation of a Charged Charmonium-like State at Belle
• Decoding the riddle of Y(4260) and $Z_c(3900)$
• Consequences of Heavy Quark Symmetries for Hadronic Molecules
• Effect of charmed meson loops on charmonium transitions
• A J^PG=1++ Charged Resonance in the Y(4260) to pi+pi- J/psi Decay?
• Z_c(3900) - what is inside?
• Predictions of charged charmonium-like structures with hidden-charm and open-strange channels
• Scalar Resonance Contributions to the Dipion Transition Rates of ${\rm Y}(4S,5S)$ in the re-scattering model
• Study on contributions of hadronic loops to decays of $J/\psi \to$ vector $+$ pseudoscalar mesons
• Electromagnetic Structure of the Z_c(3900)
• Possibility of measuring a0(980)-f0(980) mixing from J/psi -> phi a0
• Towards a dynamical understanding of the non-$D\bar{D}$ decay of $\psi (3770)$
• $Z_b/Z_b^{\prime }\to {\rm Y}\pi$ and $h_b\pi$ decays in intermediate meson loops model
• Decays of $J/\psi$ and ${\psi }^{\prime }$ into vector and pseudoscalar meson and the pseudoscalar glueball-$q\bar{q}$ mixing
• The evasion of helicity selection rule in ${\chi }_{c1}\to VV$ and ${\chi }_{c2}\to VP$ via intermediate charmed meson loops
• Novel analysis of the decays psi' -> h_c pi^0 and eta_c'-> chi_{c0} pi^0
• Hadronic loop contributions to $J/\psi$ and ${\psi }^{\prime }$ radiative decays into $\gamma {\eta }_c$ or $\gamma {\eta }_c^{\prime }$
• Further study of the helicity selection rule evading mechanism in ${\eta }_c$, ${\chi }_{c0}$ and $h_c$ decaying to baryon anti-baryon pairs
• ${\rm Y}(4S,5S)\to {\rm Y}(1S)\eta$ transitions in the rescattering model and the new BaBar measurement
• Isospin violation in $\varphi ,J/\psi ,{\psi }^{\prime }\to \omega {\pi }^0$ via hadronic loops
• Light quark mass dependence in heavy quarkonium physics
• On the near-threshold enhancement in $J/\psi \to \gamma X$ with $X\to \omega \varphi$
• A study of the Okubo-Zweig-Iizuka rule violations in ${\eta }_c\to VV$

Cited by in corpus (30)

• Hadronic molecules
• The hidden-charm pentaquark and tetraquark states
• Observation of $Z_c(3900{)}^0$ in $e^{+}{e}^{-}\to {\pi }^0{\pi }^{0}J/\psi$
• Reanalysis of the $Y(3940)$, $Y(4140)$, $Z_c(4020)$, $Z_c(4025)$ and $Z_b(10650)$ as molecular states with QCD sum rules
• Observation of $e^{+}{e}^{-}\to {\pi }^0{\pi }^0{h}_c$ and a neutral charmoniumlike structure $Z_c(4020{)}^0$
• Analysis of the $Z_c(4020)$, $Z_c(4025)$, $Y(4360)$ and $Y(4660)$ as vector tetraquark states with QCD sum rules
• Search for Z_c^+(3900) in the 1^+- channel on the lattice
• Could $Z_c(3900)$ be a $I^G{J}^P=1^{+}{1}^{+}$ $D^{\ast }\bar{D}$ molecular state?
• Selected strong decay modes of Y(4260)
• $Z_c(3900)$ as a $D{\bar{D}}^{\ast }$ molecule from the pole counting rule
• $Z_c(3900)/Z_c(3885)$ as a virtual state from $\pi J/\psi -{\bar{D}}^{\ast }D$ interaction
• Fully Heavy Tetraquark $bb\bar{c}\bar{c}$: Lifetimes and Weak Decays
• Production of the $Z_b^{(\prime )}$ states from the ${\rm Y}(5S,6S)$ decays
• Production of $Z_c(3900$) and $Z_c(4020)$ in $B_c$ decay
• Weak Decays of Triply Heavy Tetraquarks $b\bar{c}b\bar{q}$
• Exploring the ${\rm Y}(4S,5S,6S)\to h_b(1P)\eta$ hidden-bottom hadronic transitions
• Production of $Z_{cs}$ in $B$ and $B_s$ decay
• Understanding the ${\eta }_c\rho$ decay mode of $Z_c^{(\prime )}$ via the triangle loop mechanism
• Weak Decays of Doubly-Heavy Tetraquarks $b\bar{c}q\bar{q}$
• Possible hadronic molecular states composed of $S$-wave heavy-light mesons
• Searching for tetraquark through weak decays of b-baryons
• Charged charmoniumlike structures in the $e^{+}{e}^{-}\to \psi (3686){\pi }^{+}{\pi }^{-}$ process based on the ISPE mechanism
• Production of $X_b$ via ${\rm Y}(5S,6S)$ radiative decays
• Properties of $Z_c(3900)$ tetraquark in a cold nuclear matter
• Study on the radiative decays of $h_c$ via intermediate meson loops model
• Study on decays of $Z_c(4020)$ and $Z_c(3900)$ into $h_c+\pi$
• Radiative decays of the neutral $Z_c(3900)$ and $Z_c(4020)$
• Evasion of HSR in the charmless decays of excited $P$-wave charmonia
• Investigation of the $X(4020)$ peak in the $D^{\ast }{\bar{D}}^{\ast }$ and $\pi h_c$ channels
• Partial Wave Analysis of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}J/\psi$ and Cross Section Measurement of $e^{+}{e}^{-}\to {\pi }^{\pm }{Z}_c(3900{)}^{\mp }$ from 4.1271 to 4.3583 GeV