Is the Z^+(4430) a radially excited state of D_s?

Abstract

We present the interpretation that the recently discovered Z^+(4430) by the Belle Collaboration can be a radial excitation of the cs-bar state. We give an explicit cs-bar candidate for this state by calculating the mass value in our semirelativistic quark potential model and also give a natural interpretation on the reason why the decay mode Z-> J/ψπ^+ has not yet been seen while Z-> ψ' πcan be seen.

6 pages, 4 figures

References in corpus (8)

• Observation of a resonance-like structure in the pi^+- psi' mass distribution in exclusive B-->K pi^+- psi' decays
• Is Z^+(4430) a loosely bound molecular state?
• Threshold effect and π^\pm ψ(2S) peak
• New Heavy-Light Mesons $Q\bar{q}$
• Partners of Z(4430) and Productions in B Decays
• Radial Excitations of Heavy Mesons
• Construction of Lorentz Invariant Amplitudes from Rest Frame Wave Functions in HQET
• Structure of Mass Gap between Two Spin Multiplets

Cited by in corpus (6)

• Observation of the resonant character of the $Z(4430{)}^{-}$ state
• The Z(4430) and a New Paradigm for Spin Interactions in Tetraquarks
• Hidden-charm and radiative decays of the Z(4430) as a hadronic D_1 \bar{D^\ast} bound state
• Mass spectrum of the axial-vector hidden charmed and hidden bottom tetraquark states
• Possible tetraquark states in the ${\pi }^{+}{\chi }_{c1}$ invariant mass distribution
• Recoupling Mechanism for exotic mesons and baryons