jtenavidal
commented
4 months ago Dear Adi I am enclosing my talk for First week of April neutrino short baseline workshop at Santa Fe. This should be clearer then my very rough work in progress Draft paper. If we have GENIE predictions in time, II can include them in the talk. If not, there is DPF meeting in May in which Ziggy will give a talk. One clarification: The universal fit include all 16,000 cross section measurements for electron scattering and photoabsorption, and extracts RL And RT by fitting functional forms to the various components of the cross sections (since we have large range of angles)
The individual. RL and RT require that we have cross section measurements at exactly the same Q2 and nu, at different angles. ( we find close points and bin center to the same Q2 and nu).
However, there are regions of data for which there may be cross sections measurements at a small angle for some Q2 and nu, and other data at large angles, but at a different Q2 and nu which is outside our bins. These are not included In the individual RL RT measurements, but are included in the fit since they contribute to fitting the overall parameters in the functional forms.
The comparison of the fit to the individual extractions of RL and RT validates that the functional forms which we use have sufficient flexibility to accommodate all the Data. So where there are RL and RT individual extractions, the fit can be used.
Since GENIE predictions for cross sections can cover all region at two or three angles, we can extract RL and RT from them,
I do not know if GENIE includes Coulomb corrections, but they should since they affect the cross section predictions.Best regards - Arie
30M, 20 deg and 150 degrees
2 GeV, get xsec, show to them with angle cut 20 degrees ~5 deg width and 130 degrees