Abstract
We assign the scalar tetraquark and the D-wave tetraquark state for X(4700) and calculate the width of the decay X(4700)→J/ψϕ within the framework of light-cone sum rules. The strong coupling gXJ/ψϕ is obtained by considering the technique of soft-meson approximation. We also investigate the mass and the decay constant of X(4700) in the framework of SVZ sum rules. Our prediction for the mass is in agreement with the experimental measurement. For the decay width of X(4700)→J/ψϕ, if we assigns X(4700) as a scalar csc¯s¯ tetraquark state, we obtain Γ=(109−24+35) MeV. On the contrary, if X(4700) is assigned as a D-wave tetraquark state, we obtain Γ=(17.1−4.0+6.2) MeV which is much smaller than the scalar one.
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