Mass spectra of four quark states in hidden charm sector

Abstract

Masses of the low lying four quark states in the hidden charm sector ($cq\bar{c}\bar{q};q\in u,d$) are calculated within the framework of a non-relativistic quark model. The four body system is considered as two two-body systems such as diquark-antidiquark ($Qq-\bar{Q}\bar{q}$) and quark antiquark-quark antiquark ($Q\bar{q}-\bar{Q}q$) molecular-like four quark states. Here, Cornell type potential has been used for describing the two body interactions among $Q-q$, $\bar{Q}-\bar{q}$, $Q-\bar{q}$, $Qq-\bar{Q}\bar{q}$ and $Q\bar{q}-\bar{Q}q$, with appropriate string tensions. Our present analysis suggests the following exotic states, $X(3823)$, $Z_c(3900)$, $X(3915)$, $Z_c(4025)$, $\psi (4040)$, $Z_1(4050)$ and $X(4160)$ as $Q\bar{q}-\bar{Q}q$ molecular-like four quark states while $Z_c(3885)$, $X(3940)$ and $Y(4140)$ as the diquark-antidiquark four quark states. We have been able to assign the $J^{PC}$ values for many of the recently observed exotic states according to their structure. Apart from this, we have identified the charged state $Z(4430)$ recently confirmed by LHCb as the first radial excitation of $Zc(3885)$ with G=+1 and $Y(4360)$ state as the first radial excitation of $Y(4008)$ with $G=-1$ and the state $\psi (4415)$ as the first radial excitation of the $\psi (4040)$ state.

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Cited by in corpus (34)

• The hidden-charm pentaquark and tetraquark states
• Heavy-Quark QCD Exotica
• A non-relativistic model for the $[cc][\bar{c}\bar{c}]$ tetraquark
• QCD Sum Rules Approach to the $X,Y$ and $Z$ States
• The $X(4140)$, $X(4274)$, $X(4500)$ and $X(4700)$ in the relativized quark model
• $X(4140)$, $X(4270)$, $X(4500)$ and $X(4700)$ and their $cs\bar{c}\bar{s}$ tetraquark partners
• Understanding the internal structures of the $X(4140)$, $X(4274)$, $X(4500)$ and $X(4700)$
• Study of charmonium-like and fully-charm tetraquark spectroscopy
• Nonrelativistic model of tetraquarks and predictions for their masses from fits to charmed and bottom meson data
• Hidden charm tetraquark states in a diquark model
• Systematic studies of charmonium-, bottomonium-, and $B_c$-like tetraquark states
• The mass spectra and decay properties of dimesonic states, using the Hellmann potential
• $Z_c(3900)$ as a $D{\bar{D}}^{\ast }$ molecule from the pole counting rule
• Exploring the resonances $X(4140)$ and $X(4274)$ through their decay channels
• Systematic study of $Z_c^{+}$ family from quark model's perspective
• The strong decay patterns of $Z_c$ and $Z_b$ states in the relativized quark model
• The hidden-charm strong decays of the $Z_c$ states
• Where are ${\chi }_{cJ}(3P)$?
• Testing the tetraquark structure for the $X$ resonances in low-lying region
• Dimesonic states with the heavy-light flavour mesons
• Triangle singularities in ${\bar{B}}^0\to {\chi }_{c1}{K}^{-}{\pi }^{+}$ relevant to $Z_1(4050)$ and $Z_2(4250)$
• Production of $Z_c(3900$) and $Z_c(4020)$ in $B_c$ decay
• Tetraquark states in the bottom sector and the status of the $Y_b$(10890) state
• Mass spectra of dimesonic states in light flavour sector
• Charged charmoniumlike structures in the $e^{+}{e}^{-}\to \psi (3686){\pi }^{+}{\pi }^{-}$ process based on the ISPE mechanism
• Properties of $Z_c(3900)$ tetraquark in a cold nuclear matter
• Models and Potentials in Hadron Spectroscopy
• Search for supersymmetric baryons near production threshold in terms of the superflavor symmetry
• Universal non-resonant explanation to charmoniumlike structures $Z_c(3885)$ and $Z_c(4025)$
• Masses of tetraquark states in the hidden charm sector above $D-D^{\ast }$ threshold
• Determination of parameters of a potential model for tetraquark study by studying all S-wave mesons
• Photon-induced production of the exotic charged charmonium-like state $Z_c(3900)$ off nuclear targets and its internal structure
• Investigation of the $X(4020)$ peak in the $D^{\ast }{\bar{D}}^{\ast }$ and $\pi h_c$ channels
• Production of $X_{cs\bar{c}\bar{s}}$ in heavy ion collisions