Difference between revisions of "06/11/2020"
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| − | **Mark extracted the cross section difference for Bethe Heitler electron pairs from Richard Jones 's tree level calculation. The values are shown [https://halldweb.jlab.org/wiki/index.php/File:GenBH_CSdiff_v3.png here] (Black: All pairs; Red: Triggered pairs; Green: Tagged pairs; Blue: Tagged and triggered pairs). They are very small: about +0. | + | **Mark extracted the cross section difference for Bethe Heitler electron pairs from Richard Jones 's tree level calculation. The values are shown [https://halldweb.jlab.org/wiki/index.php/File:GenBH_CSdiff_v3.png here] (Black: All pairs; Red: Triggered pairs; Green: Tagged pairs; Blue: Tagged and triggered pairs). They are very small: about +0.01 μb for the triggered+tagged pairs, compared to the typical -4.5 μb (+9 μb) expected for Δσ the proton (neutron). |
**Got the event generator written by Simon and will see if it is consistent with Richard Jones generator. | **Got the event generator written by Simon and will see if it is consistent with Richard Jones generator. | ||
Revision as of 07:54, 11 June 2020
Present: M.D., A.D., S.Š
General:
- M.D:
- Mark extracted the cross section difference for Bethe Heitler electron pairs from Richard Jones 's tree level calculation. The values are shown here (Black: All pairs; Red: Triggered pairs; Green: Tagged pairs; Blue: Tagged and triggered pairs). They are very small: about +0.01 μb for the triggered+tagged pairs, compared to the typical -4.5 μb (+9 μb) expected for Δσ the proton (neutron).
- Got the event generator written by Simon and will see if it is consistent with Richard Jones generator.
- S.Š:
- Sent his latest BH event gGenerator to Mark.
- J. S.:
- A. D.: Added a part on the proposal that discussed the GDH checks from low Q^2 measurements (pages 10-11 of the current proposal version).
