Difference between revisions of "PS acceptance and luminosity determination"
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2016 data is different due to the larger PS magnetic field. A good agreement in | 2016 data is different due to the larger PS magnetic field. A good agreement in | ||
shapes between the measurements and simulation was observed. | shapes between the measurements and simulation was observed. | ||
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[https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=3514 TAC run in January 2018] | [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=3514 TAC run in January 2018] | ||
Revision as of 19:50, 9 February 2018
Pair Spectrometer acceptances were measured using runs with the total absorption counter. The shapes were compared with the detailed Geant simulation.
The normalization of PS acceptances agree reasonably well, on the level of 5%, for 2018, 2017, and 2016 TAC runs. Note, the acceptance shape for 2016 data is different due to the larger PS magnetic field. A good agreement in shapes between the measurements and simulation was observed.
Comparison of the refined acceptance of 2016, new acceptance of 2017
