Difference between revisions of "Real Gamma GDH Experiment (REGGE)"

From GlueXWiki
Jump to: navigation, search
m (Minutes of meeting)
(28 intermediate revisions by 2 users not shown)
Line 8: Line 8:
  
 
Dial Either +1 408 740 7256 or +1 888 240 2560 for US or Canada
 
Dial Either +1 408 740 7256 or +1 888 240 2560 for US or Canada
 +
 +
==Mailing list==
 +
Visit the [https://mailman.jlab.org/mailman/listinfo/halld-regge page] to register to the Regge experiment mailing list.
  
 
==Documents==
 
==Documents==
 +
 +
*Proposal: PR12-20-011
 +
<!--**[https://userweb.jlab.org/~deurpam/GDH4HD/proposal_March19.pdf 03/29/2018 version of the proposal]-->
 +
<!-- **[https://www.overleaf.com/8798533436rgxpyyvcrjrx old Overleaf project]-->
 +
**[https://halldweb.jlab.org/DocDB/0044/004404/006/The_GDH_Experiment.pdf Version submitted to PAC48 (June 2020)] and [https://misportal.jlab.org/pacProposals/proposals/4b8cc8ec-c9de-4c0d-86dd-f28b8dd5344b/show_pdf.pdf cover sheet]
 +
**[https://arxiv.org/abs/2008.11059 Proposal on arXiv]
 +
**[https://www.overleaf.com/project/5eb2b51ea3179a0001685b23 Current version on Overleaf]
 +
**[https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4404 Document on DocDB]
  
 
*LOI and reviews
 
*LOI and reviews
 
**[https://userweb.jlab.org/~deurpam/GDH4HD/GDH_HD_LOI.pdf LOI submitted to PAC 47 (LOI12-19-002)]  
 
**[https://userweb.jlab.org/~deurpam/GDH4HD/GDH_HD_LOI.pdf LOI submitted to PAC 47 (LOI12-19-002)]  
**[https://userweb.jlab.org/~deurpam/GDH4HD/TAC_LOI_report.pdf  TAC comments]  
+
**[https://userweb.jlab.org/~deurpam/GDH4HD/TAC_LOI_report.pdf  TAC comments on LOI]  
**[https://userweb.jlab.org/~deurpam/GDH4HD/TAC_LOI_Reply.pdf Reply to TAC comments]  
+
**[https://userweb.jlab.org/~deurpam/GDH4HD/TAC_LOI_Reply.pdf Reply to TAC comments on LOI]  
**[https://userweb.jlab.org/~deurpam/GDH4HD/PAC47_LOI_Report.pdf PAC47 recommendation]
+
**[https://userweb.jlab.org/~deurpam/GDH4HD/PAC47_LOI_Report.pdf PAC47 recommendation on LOI]
 
**[https://halldweb.jlab.org/wiki/images/9/9e/GDH_review_final.pdf Report] from Garth Huber and Frank Nerling recommending to the GlueX board that the proposal be endorsed for review by the collaboration.
 
**[https://halldweb.jlab.org/wiki/images/9/9e/GDH_review_final.pdf Report] from Garth Huber and Frank Nerling recommending to the GlueX board that the proposal be endorsed for review by the collaboration.
 +
<!--Theory report and TAC are not public documents and should be shared beyond the collaboration
 +
**[https://halldweb.jlab.org/wiki/images/b/b5/PR12-20-011_phy.pdf TAC comments on proposal (PAC48)]
 +
**[https://halldweb.jlab.org/wiki/images/6/68/PR12-20-011_Thy.pdf Theory comments on proposal (PAC48)] -->
 +
**[https://halldweb.jlab.org/wiki/images/c/c8/PAC48_Preliminary_Report_E12_20_011.pdf PAC48 preliminary report on PR12-20-011]
  
 
*5-pages summary for the GlueX physics whitepaper (2019)
 
*5-pages summary for the GlueX physics whitepaper (2019)
 
**[https://halldweb.jlab.org/wiki/images/6/69/GDH_HD_whitepaper.pdf Contribution to the GlueX physics whitepaper]
 
**[https://halldweb.jlab.org/wiki/images/6/69/GDH_HD_whitepaper.pdf Contribution to the GlueX physics whitepaper]
  
*Proposal: PR12-20-011
+
 
<!--**[https://userweb.jlab.org/~deurpam/GDH4HD/proposal_March19.pdf 03/29/2018 version of the proposal]-->
+
<!-- **[https://www.overleaf.com/8798533436rgxpyyvcrjrx old Overleaf project]-->
+
**[https://halldweb.jlab.org/DocDB/0044/004404/006/The_GDH_Experiment.pdf Version submitted to PAC48 (June 2020)] and [https://misportal.jlab.org/pacProposals/proposals/4b8cc8ec-c9de-4c0d-86dd-f28b8dd5344b/show_pdf.pdf cover sheet]
+
**[https://www.overleaf.com/project/5eb2b51ea3179a0001685b23 Current version on Overleaf]
+
**[https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4404 Document on DocDB]
+
  
 
*Talks
 
*Talks
Line 34: Line 44:
 
**[https://halldweb.jlab.org/wiki/images/8/89/Dalton_GDH_APS_April2020.pdf Talk given at the APS meeting. Apr. 2020 (M. Dalton)]
 
**[https://halldweb.jlab.org/wiki/images/8/89/Dalton_GDH_APS_April2020.pdf Talk given at the APS meeting. Apr. 2020 (M. Dalton)]
 
**[https://halldweb.jlab.org/wiki/images/0/00/GDH_May2020.pdf Talk given at the GlueX collaboration meeting. May 2020 (A. Deur)]
 
**[https://halldweb.jlab.org/wiki/images/0/00/GDH_May2020.pdf Talk given at the GlueX collaboration meeting. May 2020 (A. Deur)]
 +
**[https://halldweb.jlab.org/wiki/index.php/File:GDH_PAC48.pdf 20 min PAC 48 Talk. Noon, August 11th 2020 (A. Deur)] ([https://www.jlab.org/indico/event/394/ Indico link tp PAC48 schedule])
  
 
*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., Justin, Todd and Dustin
 +
**Join WM-UVa proposal.
 +
*Finalize polarized BH and Compton event generator. S. Širca, M. Dalton
 +
**[[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.
 +
*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
 +
*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 ==
 
==Minutes of meeting ==
Line 70: Line 109:
  
 
[[07/07/2020]]
 
[[07/07/2020]]
 +
 +
[[07/22/2020]]
 +
 +
[[07/29/2020]]
 +
 +
[[08/12/2020]]
 +
 +
[[08/19/2020]]
 +
 +
[[09/09/2020]]
 +
 +
[[10/13/2020]]
 +
 +
[[11/10/2020]]

Revision as of 11:09, 5 October 2021

GDH wiki page

To connect please do the following

  1. To join via a Web Browser, go to the page [1] https://bluejeans.com/7572697526
  2. To join via Polycom room system go to the IP Address: 199.48.152.152 (bjn.vc) and enter the meeting ID: 7572697526
  3. To join via phone, use one of the following numbers and the Conference ID: 7572697526
  4. Moderator code:7377


Dial Either +1 408 740 7256 or +1 888 240 2560 for US or Canada

Mailing list

Visit the page to register to the Regge experiment mailing list.

Documents


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. Stevens Already taken GlueX data are sufficient.
  • Polarized target building. C. Keith.
  • Bleedthrough issue. A. Deur
  • 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

03/27/2020

03/31/2020

04/01/2020

04/08/2020

04/15/2020

04/21/2020

04/28/2020

05/06/2020

05/20/2020

05/27/2020

06/11/2020

06/17/2020

07/07/2020

07/22/2020

07/29/2020

08/12/2020

08/19/2020

09/09/2020

10/13/2020

11/10/2020