Sensibility of Isomeric Ratios and Excitation Functions to Statistical Model Parameters for the (4,6,8HE, N, 3N)-REACTIONS

The calculations of the isomeric ratios σ_m/σ_g and excitation functions for the reactions ¹⁰⁹Ag(α, 3n)^{110 mg}In, ¹⁰⁷Ag(^6,4He, n, 3n)^110mgIn and ^{128, 130}Te(^8,6He, 3n, n) ^133mgXe in the framework of the statistical theory of nuclear reactions were performed. The model of Hauser-Feshbach, the exciton Griffin model and the recently developed statistical model code EMPIRE-2.18¹ with full angular momentum coupling were used. For the reactions induced by α-particles we used the Gilbert-Cameron level densities and the Multi-Step Compound approach. The fusion cross sections of the reactions induced by ^6,8He projectiles were calculated in terms of the simplified coupled channels method (CCFUS code). The new results of the calculations ICSR for the reactions ¹³⁰Te(⁴He,n)^133mgXe (1) and ¹²⁸Te(⁶He,n)^133mgXe (2) on the statistical code EMPIRE-18 are shown in the Table 1. The results for the reactions ¹²⁸Te(⁸He,3n)^133mgXe (3) and ¹³⁰Te(⁶He,3n)-^133mgXe (4) are shown in Table 2. The results are in a good agreement with the experimental data for α-particles induced reactions obtained ² at Moscow State University (INP)...

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