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.

12 pages, 4 figures

References in corpus (28)

• Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts
• Observation of a resonance-like structure in the pi^+- psi' mass distribution in exclusive B-->K pi^+- psi' decays
• Observation of Two Resonant Structures in e+e- to pi+ pi- psi(2S) via Initial State Radiation at Belle
• Measurement of e^+e^- to pi^+pi^-J/psi Cross Section via Initial State Radiation at Belle
• The Exotic XYZ Charmonium-like Mesons
• Hadro-Charmonium
• Can the X(3872) be a 1^{++} four-quark state?
• Analysis of Y(2175) as a tetraquark state with QCD sum rules
• Evidence that the Y(4660) is a f_0(980)psi' bound state
• Is Z^+(4430) a loosely bound molecular state?
• $Z^{+}(4430)$ as a $D_1^{\prime }{D}^{\ast }$ ($D_1{D}^{\ast }$) molecular state
• Canonical Charmonium Interpretation for Y(4360) and Y(4660)
• Erratum: QCD sum rules study of the $J^{PC}=1^{--}$ charmonium $Y$ mesons
• QCD sum rules study of the meson Z^+(4430)
• Search for tetraquark candidate Z(4430) in meson photoproduction
• Threshold effect and π^\pm ψ(2S) peak
• A Uniform Description of the States Recently Observed at B-factories
• $D_{s0}(2317)$ as a tetraquark state with QCD sum rules in heavy quark limit
• The meson $Z^{+}(4430)$ as a tetraquark state
• Partners of Z(4430) and Productions in B Decays
• Another tetraquark structure in the ${\pi }^{+}{\chi }_{c1}$ invariant mass distribution
• Line Shapes of the Z(4430)
• The Charged Z(4433): Towards a New Spectroscopy
• Analysis of the X(1576) as a tetraquark state with the QCD sum rules
• Is the Z^+(4430) a radially excited state of D_s?
• $Z^{+}(4430)$ as a resonance in the $D_1(D_1^{\prime })D^{\ast }$ channel
• Understanding the Charged Meson Z(4430)
• Possible nature of $Z^{+}(4430)$

Cited by in corpus (5)

• Another tetraquark structure in the ${\pi }^{+}{\chi }_{c1}$ invariant mass distribution
• Mass spectrum of the axial-vector hidden charmed and hidden bottom tetraquark states
• Mass spectrum of the vector hidden charm and bottom tetraquark states
• Analysis of the possible $D{\bar{D}}_{s0}^{\ast }(2317)$ and $D^{\ast }{\bar{D}}_{s1}^{\ast }(2460)$ molecules with QCD sum rules
• QCD sum rules study of X(4350)