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Citation: LU Xi, WANG Hua-Yang, CAI Zheng-Ting, FENG Da-Cheng. A New Calculation Method on the Lifetime of Feshbach Resonance States[J]. Acta Physico-Chimica Sinica, ;2007, 23(06): 929-931. doi: 10.3866/PKU.WHXB20070626 shu

A New Calculation Method on the Lifetime of Feshbach Resonance States

1.

Institute of the Theoretical Chemistry, Shandong University, Jinan 250100, P. R. China; School of Physic and Electronic Engineering, Ludong University, Yantai 264025, Shandong Province, P. R. China

Received Date: 13 November 2006
Available Online: 29 April 2007

A new calculation method was developed in this paper. With the natural collision coordinate, the core translational equation along the reactive coordinate was solved by the numerical propagation method on the partial potential energy surface. Then the resonance lifetime matrix of reactive system was constructed by the eigen-phase shift of the wave function of transient collision complex. So it was a direct calculation method on the lifetime of scattering resonance states. The lifetime of first scattering resonance state of the I+HI(υ)→IH(υ’)+I reaction has been calculated by our method, which is in od agreement with Neumark’s experimental results of the high-resolved-threshold-photodetachment spectroscopy of this reaction.
- Heavy-light-heavy reaction system; Scattering resonance state; Lifetime matrix; Partial potential energy surface; Transition collision complex
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