Rachel format nuclear data files
From GOSIA
(cleaned up formatting and updated file name of example file) |
(Clarified the meaning of the mixing ratios and a reference to help with units.) |
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</pre> | </pre> | ||
| - | The order of the individual lines is completely arbitrary. The file is re-read each time Gosia is called, so individual lines can be "commented out" before a Gosia fit iteration. Note that the sixth line contains a matrix element given in the ''decay direction'', whereas Gosia requires it to be in the ''excitation direction''--from lower-numbered state to higher-numbered state. This phase of this matrix element will be automatically time-reversed before being included in the fit data. | + | The order of the individual lines is completely arbitrary. The file is re-read each time Gosia is called, so individual lines can be "commented out" before a Gosia fit iteration. Note that the sixth line contains a matrix element given in the ''decay direction'', whereas Gosia requires it to be in the ''excitation direction''--from lower-numbered state to higher-numbered state. This phase of this matrix element will be automatically time-reversed before being included in the fit data. ''Pay special attention to the mixing ratios, which are the amplitude ratios with a phase as defined in Krane and Steffen, PRC 2:724. These are not intensity ratios which may be found in some catalogs. Refer to the Gosia manual section on OP,YIEL for units.'' |
The weights given to each of these four data sets can be set via the ''Gosia controls'' button menu, for example to test whether there are systematic conflicts between the different data sets (and/or the gamma-ray yield data). | The weights given to each of these four data sets can be set via the ''Gosia controls'' button menu, for example to test whether there are systematic conflicts between the different data sets (and/or the gamma-ray yield data). | ||
