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We present a tetraquark interpretation of the charged bottomonium-like statesZ+-_b(10610) and Z+-_b(10650), observed by the Belle collaboration in the pi+-Upsilon(nS) (n=1,2,3) and pi+- h_b(mP) (m=1,2) invariant mass spectra from thedata taken near the peak of the Upsilon(5S). In this framework, the underlyingprocesses involve the production and decays of a vector tetraquark Y_b(10890),e+e- --> Y_b(10890) --> [Z+-_b(10610)pi-+, Z+-_b(10650)pi-+] followed by thedecays [Z+-_b (10610), Z+-_b (10650)] --> pi+- Upsilon(nS), pi+- h_b(mP).Combining the contributions from the meson loops and an effective Hamiltonian,we are able to reproduce the observed masses of the Z+-_b(10610) andZ+-_b(10650). The analysis presented here is in agreement with the Belle dataand provides crucial tests of the tetraquark hypothesis. We also calculate thecorresponding meson loop effects in the charm sector and find them dynamicallysuppressed. The charged charmonium-like states Z+-_c(3752) and Z+-_c(3882) canbe searched for in the decays of the J^{PC}=1^{--} tetraquark state Y(4260) viaY(4260) --> Z+-_c(3752)pi-+ and Y(4260) --> Z+-_c(3882)pi-+, with thesubsequent decays (Z+-_c(3752),Z+-_c(3882)) --> (J/psi, h_c)pi+-.

Tetraquark Interpretation of the Charged Bottomonium-like states Z_b^+-(10610) and Z_b^+-(10650) and Implications