Another tetraquark structure in the ${\pi }^{+}{\chi }_{c1}$ invariant mass distribution

Abstract

In this article, we assume that there exists a scalar hidden charm tetraquark state in the ${\pi }^{+}{\chi }_{c1}$ invariant mass distribution, and study its mass using the QCD sum rules. The numerical result $M_Z=(4.36\pm 0.18)\mathrm{GeV}$ is consistent with the mass of the Z(4250). The Z(4250) may be a tetraquark state, other possibilities, such as a hadro-charmonium resonance and a $D_1^{+}{\bar{D}}^0+D^{+}{\bar{D}}_1^0$ molecular state are not excluded.

14 pages, 14 figure, correct some type errors

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Cited by in corpus (26)

• Analysis of the X(3872), Z_c(3900) and Z_c(3885) as axial-vector tetraquark states with QCD sum rules
• Analysis of the $Z_c(4020)$, $Z_c(4025)$, $Y(4360)$ and $Y(4660)$ as vector tetraquark states with QCD sum rules
• QCD Sum Rules Approach to the $X,Y$ and $Z$ States
• Tetraquark state candidates: $Y(4260)$, $Y(4360)$, $Y(4660)$ and $Z_c(4020/4025)$
• Analysis of the scalar and axial-vector heavy diquark states with QCD sum rules
• Scalar tetraquark state candidates: $X(3915)$, $X(4500)$ and $X(4700)$
• Analysis of the Y(4140) and related molecular states with QCD sum rules
• Analysis of Y(4660) and related bound states with QCD sum rules
• Vector tetraquark state candidates: $Y(4260/4220)$, $Y(4360/4320)$, $Y(4390)$ and $Y(4660/4630)$
• Possible $J^{PC}=0^{--}$ Charmonium-like State
• Mass spectrum of the scalar hidden charm and bottom tetraquark states
• Mass spectrum of the axial-vector hidden charmed and hidden bottom tetraquark states
• Mass spectrum of the vector hidden charm and bottom tetraquark states
• Reanalysis of the mass spectrum of the scalar hidden charm and hidden bottom tetraquark states
• Possible tetraquark states in the ${\pi }^{+}{\chi }_{c1}$ invariant mass distribution
• Triangle singularities in ${\bar{B}}^0\to {\chi }_{c1}{K}^{-}{\pi }^{+}$ relevant to $Z_1(4050)$ and $Z_2(4250)$
• Analysis of the Y(4274) with QCD sum rules
• Analysis of the scalar doubly heavy tetraquark states with QCD sum rules
• Analysis of the scalar doubly charmed hexaquark state with QCD sum rules
• Analysis of the pseudoscalar partner of the Y(4660) and related bound states
• Analysis of the nonet scalar mesons as tetraquark states with new QCD sum rules
• Studying the $D_{1}D$ molecule in the Bethe-Salpeter equation approach
• The spin parity of $Z_c^{-}$(4100), $Z_1^{+}$(4050) and $Z_2^{+}$(4250)
• Scalar hidden-charm tetraquark states with QCD sum rules
• Analysis of the tensor-tensor type scalar tetraquark states with QCD sum rules
• The scalar and pseudoscalar hidden-charm tetraquark states with QCD sum rules