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An extended LCAC|SW(Linear Combination of Arrangement Channels|Scattering Wavefunction) quantum scattering dynamic method combined with %ab initio% quantum chemical calculations has been used to study the formation mechanism of the resonance states for ion|pair formation reaction Na+I-2 Na+++I+--2. Resonance energy and width or lifetime for the first resonance peak were calculated. Resonance can be identified to Feshbach resonance and the physical interpretation was given.
An extended LCAC | SW (Linear Combination of Arrangement Channels | Scattering Wavefunction) quantum scattering dynamic method combined with % ab initio % quantum chemical calculations has been used to study the formation mechanism of the resonance states for ion | pair formation reaction Na + I - 2 Na +++ I + - - 2. Resonance energy and width or lifetime for the first resonance peak were calculated. Resonance can be identified to Feshbach resonance and the physical interpretation was given.