Strange hadrocharmonium

Abstract

It has been recently suggested that the charged charmoniumlike resonances $Z_c(4100)$ and $Z_c(4200)$ are two states of hadrocharmonium, related by the charm quark spin symmetry in the same way as the lowest charmonium states ${\eta }_c$ and $J/\psi$. It is pointed out here that in this picture one might expect existence of their somewhat heavier strange counterparts, $Z_{cs}$, decaying to ${\eta }_{c}K$ and $J/\psi K$. Some expected properties of such charmoniumlike strange resonances are discussed that set benchmarks for their search in the decays of the strange $B_s$ mesons.

7 pages, 2 figures

References in corpus (9)

• Exotics: Heavy Pentaquarks and Tetraquarks
• Charmonium
• The Heavy Quark Spin Symmetry Partners of the X(3872)
• Observation of a new charged charmoniumlike state in B -> J/psi K pi decays
• Pionic transitions from X(3872) to chi_{cJ}
• New charged resonance $Z_c^{-}(4100)$: the spectroscopic parameters and width
• $Z_c(4100)$ and $Z_c(4200)$ as hadrocharmonium
• The spin parity of $Z_c^{-}$(4100), $Z_1^{+}$(4050) and $Z_2^{+}$(4250)
• Some insights into the newly observed $Z_c(4100)$ in $B^0\to {\eta }_c{K}^{+}{\pi }^{-}$ by LHCb

Cited by in corpus (26)

• An updated review of the new hadron states
• Observation of new resonances decaying to $J/\psi K^{+}$ and $J/\psi \varphi$
• Observation of a near-threshold structure in the $K^{+}$ recoil-mass spectra in $e^{+}{e}^{-}\to K^{+}(D_s^{-}{D}^{\ast 0}+D_s^{\ast -}{D}^0)$
• Strange molecular partners of the $Z_c(3900)$ and $Z_c(4020)$
• Hidden-charm and bottom tetra- and pentaquarks with strangeness in the hadro-quarkonium and compact tetraquark models
• About the exotic structure of $Z_{cs}$
• Analysis of the $Z_{cs}(3985)$ as the axialvector tetraquark state
• Is $Z_{cs}(3982)$ a molecular partner of $Z_c(3900)$ and $Z_c(4020)$ states?
• Observation of a vector charmoniumlike state at 4.7 $\mathrm{GeV}/c^2$ and search for $Z_{cs}$ in $e^{+}{e}^{-}\to K^{+}{K}^{-}J/\psi$
• The newly observed $Z_{cs}(3985{)}^{-}$ state: in vacuum and a dense medium
• Photoproduction of strange hidden-charm and hidden-bottom states
• Evidence for a neutral near-threshold structure in the $K_{\mathrm{S}}^0$ recoil-mass spectra in $e^{+}{e}^{-}\to K_{\mathrm{S}}^0{D}_s^{+}{D}^{\ast -}$ and $e^{+}{e}^{-}\to K_{\mathrm{S}}^0{D}_s^{\ast +}{D}^{-}$
• ${\bar{D}}_s^{(\ast )}{D}^{(\ast )}$ molecular state with $J^P=1^{+}$
• Strange hidden-charm tetraquarks in constituent quark models
• The new $P_{\mathrm{cs}}(4459)$, $Z_{\mathrm{cs}}(3985)$, $Z_{\mathrm{cs}}(4000)$ and $Z_{\mathrm{cs}}(4220)$ and the possible emergence of flavor pentaquark octets and tetraquark nonets
• Photo- and electro-production of narrow exotic states: from light quarks to charm and up to bottom
• Hadronic molecular states with the quark contents $bc\bar{s}\bar{q}$, $b\bar{c}s\bar{q}$, and $b\bar{c}\bar{s}q$
• $Z_{cs}(3985)$ in next-to-leading-order chiral effective field theory -- the first truncation uncertainty analysis
• Masses of tetraquark states in the hidden charm sector above $D-D^{\ast }$ threshold
• Quark structure of the $X(4500)$, $X(4700)$ and ${\chi }_{\mathrm{c}}(4P,5P)$ states
• $Z_c$ and $Z_{cs}$ systems with operator mixing at NLO in QCD sum rules
• Spin and polarization analysis of $Z_{cs}$ state
• The $Z_{cs}$ states and the mixture of hadronic molecule and diquark-anti-diquark components within effective field theory
• Hunting for the heavy quark spin symmetry partner of $Z_{cs}$
• Spectrum of Hidden-Charm, Open-Strange Exotics in the Dynamical Diquark Model
• Branching fraction measurement of the decay $B^{+}\to \psi (2S)\varphi (1020)K^{+}$