Difference between revisions of "06/11/2020"
From GlueXWiki
m |
m |
||
| (One intermediate revision by the same user not shown) | |||
| Line 5: | Line 5: | ||
*M.D: | *M.D: | ||
| − | **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. | ||
*S.Š: | *S.Š: | ||
| − | **Sent his latest BH event | + | **Sent his latest BH event generator to Mark. |
| − | *J. S.: | + | *J. S.: Performing empty target analysis in order to assess the electromagnetic background from nuclei (12C, 16O). A significant rate is seen coming from material after the target, but more analysis is needed. |
*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). | *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). | ||
Latest revision as of 07:35, 17 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 generator to Mark.
- J. S.: Performing empty target analysis in order to assess the electromagnetic background from nuclei (12C, 16O). A significant rate is seen coming from material after the target, but more analysis is needed.
- 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).
