Difference between revisions of "Real Gamma GDH Experiment (REGGE)"
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===GDH wiki page=== | ===GDH wiki page=== | ||
| − | + | To join the zoom Meeting: https://jlab-org.zoomgov.com/j/1612461827?pwd=UEtkVHRFdFlxMG9GSlA1dDhxMmdBQT09 | |
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| + | Meeting ID: 161 246 1827 | ||
| − | + | passcode: 303252 | |
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| + | ==Mailing list== | ||
| + | Visit the [https://mailman.jlab.org/mailman/listinfo/halld-regge page] to register to the Regge experiment mailing list. | ||
==Documents== | ==Documents== | ||
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*Misc | *Misc | ||
| + | **[https://arxiv.org/abs/2107.08133 Article (2021) reporting on data on the Bjorken sum rule, suggesting that polarized cross-sections at large energy are not well understood] | ||
**[https://docs.google.com/document/d/1MU4HFs6mBkG2ypWAH1NqMKvzM_5djzB-qU929HlMYw0/edit?usp=sharing Justin's initial document on what is expected from the simulation] | **[https://docs.google.com/document/d/1MU4HFs6mBkG2ypWAH1NqMKvzM_5djzB-qU929HlMYw0/edit?usp=sharing Justin's initial document on what is expected from the simulation] | ||
**[https://halldweb.jlab.org/wiki/images/9/91/200406_PolarizedHallD.pdf Joe Grame's thoughts on beam polarization in Hall D] | **[https://halldweb.jlab.org/wiki/images/9/91/200406_PolarizedHallD.pdf Joe Grame's thoughts on beam polarization in Hall D] | ||
| + | **[https://userweb.jlab.org/~deurpam/poelker_Ops_retreat_bleedthrough.ppt Matt Poelker's 2016 slides on bleedthrough] | ||
==Misc. Tasks and questions== | ==Misc. Tasks and questions== | ||
| − | *Discuss funding options with Eugene, Chris K., Todd and Dustin | + | *Discuss funding options with Eugene, Chris K., Justin, Todd and Dustin |
| + | **Join WM-UVa proposal. | ||
*Finalize polarized BH and Compton event generator. S. Širca, M. Dalton | *Finalize polarized BH and Compton event generator. S. Širca, M. Dalton | ||
| − | *Organize tests on solid targets to measure background and signal rates. J. Stevens | + | **[[Email from Richard Jones (06/14/2021)]] |
| + | *<s>Organize tests on solid targets to measure background and signal rates. J. Stevens</s> Already taken GlueX data are sufficient. | ||
*Polarized target building. C. Keith. | *Polarized target building. C. Keith. | ||
*Bleedthrough issue. A. Deur | *Bleedthrough issue. A. Deur | ||
| + | **Accelerator reported in [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5107 May 2021 GlueX collaboration meeting] that a new system will be installed, probably for the next run (8/2021) that will eliminate bleedthrough in Hall D. | ||
*Beam helicity reporting for Hall D. M. Dalton | *Beam helicity reporting for Hall D. M. Dalton | ||
| + | *Once the backgrounds are simulated and understood, define trigger. Discussion with Sacha. | ||
| + | *Look into having an Al. radiator of RL between 2. 10^-5, 10^-4, so that we have some beam current flexibility. | ||
*Design and build a beam hardener. | *Design and build a beam hardener. | ||
*Optional Pair Spec. upgrade. | *Optional Pair Spec. upgrade. | ||
*Study options for the low energy run. | *Study options for the low energy run. | ||
| + | **Discussion with accelerator on how and when we can run at low energy | ||
| + | **Study how the GlueX apparatus will behave with lower energy electrons (transmission, etc...) | ||
*Extend the doubly polarized experimental program. | *Extend the doubly polarized experimental program. | ||
**"GDH" on nuclei (shadowing/antishadowing studies). M. Dalton, A. Deur | **"GDH" on nuclei (shadowing/antishadowing studies). M. Dalton, A. Deur | ||
| − | **Dustin proposal(s). | + | **Dustin proposal(s): |
| + | ***eta meson. | ||
| + | ***Polarized Compton. | ||
| + | |||
| + | ==Student Projects== | ||
| + | |||
| + | * Study beam hardener | ||
==Minutes of meeting == | ==Minutes of meeting == | ||
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[[10/13/2020]] | [[10/13/2020]] | ||
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| + | [[11/10/2020]] | ||
Latest revision as of 09:00, 18 February 2022
Contents
GDH wiki page
To join the zoom Meeting: https://jlab-org.zoomgov.com/j/1612461827?pwd=UEtkVHRFdFlxMG9GSlA1dDhxMmdBQT09
Meeting ID: 161 246 1827
passcode: 303252
Mailing list
Visit the page to register to the Regge experiment mailing list.
Documents
- Proposal: PR12-20-011
- LOI and reviews
- LOI submitted to PAC 47 (LOI12-19-002)
- TAC comments on LOI
- Reply to TAC comments on LOI
- PAC47 recommendation on LOI
- Report from Garth Huber and Frank Nerling recommending to the GlueX board that the proposal be endorsed for review by the collaboration.
- PAC48 preliminary report on PR12-20-011
- 5-pages summary for the GlueX physics whitepaper (2019)
- Talks
- Talk given at the GlueX collaboration meeting. Jan. 2018 (A. Deur)
- Talk given at the GlueX PWG meeting. Feb. 2019 (A. Deur)
- Talk given at the GlueX PWG meeting. May 2019 (A. Deur)
- Talk given at the APS meeting. Apr. 2020 (M. Dalton)
- Talk given at the GlueX collaboration meeting. May 2020 (A. Deur)
- 20 min PAC 48 Talk. Noon, August 11th 2020 (A. Deur) (Indico link tp PAC48 schedule)
- Misc
Misc. Tasks and questions
- Discuss funding options with Eugene, Chris K., Justin, Todd and Dustin
- Join WM-UVa proposal.
- Finalize polarized BH and Compton event generator. S. Širca, M. Dalton
Organize tests on solid targets to measure background and signal rates. J. StevensAlready taken GlueX data are sufficient.- Polarized target building. C. Keith.
- Bleedthrough issue. A. Deur
- Accelerator reported in May 2021 GlueX collaboration meeting that a new system will be installed, probably for the next run (8/2021) that will eliminate bleedthrough in Hall D.
- Beam helicity reporting for Hall D. M. Dalton
- Once the backgrounds are simulated and understood, define trigger. Discussion with Sacha.
- Look into having an Al. radiator of RL between 2. 10^-5, 10^-4, so that we have some beam current flexibility.
- Design and build a beam hardener.
- Optional Pair Spec. upgrade.
- Study options for the low energy run.
- Discussion with accelerator on how and when we can run at low energy
- Study how the GlueX apparatus will behave with lower energy electrons (transmission, etc...)
- Extend the doubly polarized experimental program.
- "GDH" on nuclei (shadowing/antishadowing studies). M. Dalton, A. Deur
- Dustin proposal(s):
- eta meson.
- Polarized Compton.
Student Projects
- Study beam hardener
Minutes of meeting
2019: 09/17/2019 10/09/2019 10/23/2019 11/13/2019 11/27/2019
