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Report No.

Determination of resonance parameters and their covariances from neutron induced reaction cross section data

Schillebeeckx, P.*; Becker, B.*; Danon, Y.*; Guber, K.*; Harada, Hideo   ; Heyse, J.*; Junghans, A. R.*; Kopecky, S.*; Massimi, C.*; Moxon, M. C.*; Otsuka, Naohiko*; Sirakov, I.*; Volev, K.*

Uncertainty components of experimental observables resulting from total and reaction cross section experiments are quantified by identifying the metrological parameters involved in the measurement, data reduction and analysis process. In addition, different methods that can be applied to propagate the covariance of the experimental observables to the covariance of the resonance parameters are discussed and compared. It is demonstrated that the final covariance matrix of the resonance parameters not only strongly depends on the type of experimental observables used in the adjustment process, the experimental conditions and the characteristics of the resonance structure, but also on the method that is used to propagate the covariances. In addition, a special data reduction concept and format is presented, which offers the possibility to store the full covariance information of experimental data in the EXFOR library.



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Category:Physics, Nuclear



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