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在考虑新实验数据的基础上，对ｎ＋￣（５６）Ｆｅ反应的光学模型势参数进行了全面仔细的调节，推荐出了一套较好的势参数。并利用包括带宽度涨落修正的Ｈａｕｓｅｒ－Ｆｅｓｈｂａｃｈ理论计算复弹数据的光学模型程序，对入射中子能量在０．８５～２０ＭｅＶ范围内的全截面、去弹截面及弹性散角分布进行了计算。结果表明全截面与实验编评数据在１％范围内符合；弹性散射角分布在有实验数据的各能点与实验都能很好符合；去弹截面也能较好符合实验数据，比目前ＥＮＤＦ／ＢＮ库的评价数据有明显改进。
Based on the new experimental data, the optical model potential parameters of the n + ~ (56) Fe reaction were fully and carefully adjusted, and a better set of potential parameters was proposed. The optical model program for calculating the complex projectile data using the Hauser-Feshbach theory with bandwidth fluctuation correction was used to calculate the full cross section, the detonation section and the elastic scatter distribution of the incident neutron energy in the range of 0.85-20 MeV . The results show that the full cross-section coincides with the experimental compilation data in 1% range. The elastic scattering angle distribution can be well fitted to the experimental data at all energy points with experimental data. The detonation cross-section can also better fit the experimental data than the current ENDF / BN library evaluation data has been significantly improved.