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

Abstract

In this article, we assume that there exist hidden charmed tetraquark states with the spin-parity $J^P=1^{-}$, and calculate their masses with the QCD sum rules. The numerical result indicates that the masses of the vector hidden charmed tetraquark states are about $M_Z=(5.12\pm 0.15)\mathrm{GeV}$ or $M_Z=(5.16\pm 0.16)\mathrm{GeV}$, which are inconsistent with the experimental data on the ${\pi }^{+}{\chi }_{c1}$ invariant mass distribution. The hidden charmed mesons $Z_1$, $Z_2$ or $Z$ may be scalar hidden charmed tetraquark states, hadro-charmonium resonances or molecular states.

arXiv comment12 pages, 4 figures

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Cited by in corpus (17)

• Analysis of the $P_c(4380)$ and $P_c(4450)$ as pentaquark states in the diquark model with QCD sum rules
• 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
• Tetraquark state candidates: $Y(4260)$, $Y(4360)$, $Y(4660)$ and $Z_c(4020/4025)$
• Analysis of the $Z_c(4200)$ as axial-vector molecule-like state
• Lowest vector tetraquark states: $Y(4260/4220)$ or $Z_c(4100)$
• Vector tetraquark state candidates: $Y(4260/4220)$, $Y(4360/4320)$, $Y(4390)$ and $Y(4660/4630)$
• Another tetraquark structure in the ${\pi }^{+}{\chi }_{c1}$ invariant mass distribution
• 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
• Analysis of the scalar doubly heavy tetraquark states with QCD sum rules
• Analysis of the possible $D{\bar{D}}_{s0}^{\ast }(2317)$ and $D^{\ast }{\bar{D}}_{s1}^{\ast }(2460)$ molecules with QCD sum rules
• Scalar hidden-charm tetraquark states with QCD sum rules
• QCD sum rules study of X(4350)
• The scalar and pseudoscalar hidden-charm tetraquark states with QCD sum rules