Suggel: a program suggesting the orbital angular momentum of a neutron resonance from the magnitude of its neutron width.

[摘要] The SUGGEL computer code has been developed to suggest a value for the orbital angular momentum of a neutron resonance that is consistent with the magnitude of its neutron width. The suggestion is based on the probability that a resonance having a certain value of g(Gamma)(sub n) is an l-wave resonance. The probability is calculated by using Bayes theorem on the conditional probability. The probability density functions (pdf) of g(Gamma)(sub n) for up to d-wave (l=2) have been derived from the (chi)(sup 2) distribution of Porter and Thomas. The pdf take two possible channel spins into account. This code is a tool which evaluators will use to construct resonance parameters and help to assign resonance spin. The use of this tool is expected to reduce time and effort in the evaluation procedure, since the number of repeated runs of the fitting code (e.g., SAMMY) may be reduced.

[发布机构] Technical Information Center Oak Ridge Tennessee

[学科分类] 工程和技术（综合）

[关键词] Computer codes;S codes;Neutrons;Orbital angular momentum;Probability