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首页> 外文期刊>Physical review, C >Reexamining fission-probability data using R-matrix Monte Carlo simulations: Beyond the surrogate-reaction method
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Reexamining fission-probability data using R-matrix Monte Carlo simulations: Beyond the surrogate-reaction method

机译：使用R-Matrix Monte Carlo模拟重新审视裂变概率数据：超出替代反应方法

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摘要

This article describes an original approach to simultaneously analyzing cross sections and data obtained with surrogate reactions, using an efficient Monte Carlo extended R-matrix theory algorithm based on an unique set of nuclear structure parameters. The alternative analytical path based on the manifold Hauser-Feshbach equation was intensively used in this work to gauge the errors carried by the surrogate-reaction method commonly taken to infer neutron-induced cross sections from observed decay probabilities. The present paper emphasizes in particular a dedicated way to treat ingoing direct reaction and outgoing channels widths correlations and to recall the common absence of class-II states width fluctuation factor in standard codes for calculating average fission cross sections. The present approach opens interesting perspectives on the matter of neutron cross section inference as simultaneously measured fission and gamma-emission probabilities become widely available.
机译：本文介绍了一种原始方法，以便使用基于独特的核结构参数的有效蒙特卡罗扩展R矩阵理论算法来分析用替代反应获得的横截面和数据。 基于歧管Hauser-Feshbach方程的替代分析路径集中地利用在该作品中，以衡量常见的反应方法携带的误差，通常采用观察到的衰减概率来推断中子诱导的横截面。 本文特别强调，特别是一种致力于治疗ImoIning直接反应和传出通道宽度相关性的途径，并记载标准码码中的II类宽度波动因子的常见缺失，用于计算平均裂变截面。 本方法在中子横截面推动的情况下开启有趣的观点，因为同时测量的裂变和伽马排放概率广泛可用。

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