Friday, June 8, 2018 2PM ET

From Hall A Wiki
Jump to: navigation, search

Previous meeting: Friday, May 25, 2018 2PM ET

Media:KK's MOLLER Task List.pdf

Task List Summary


  • Simulation coding updates
    • Daniel and Audrey are adding generators for specific upcoming SBU simulation tasks
    • Designing a function-defined radial position at downstream detector generator
    • Also improving the "external" root output file -> input file generator
  • Shielding update
    • Getting the newest version of remoll (v2.0.0 -> Master) to work with all geometries
    • Updating analysis scripts to use the new data structures
  • Air/Vacuum Study
    • Waiting for the geometry definition in the radiation shielding to be verified by Cameron and Chandan to make a new, more comprehensive set of Air/Vacuum/Helium test geometries
  • Spin precession: Ciprian slides



Cameron Clarke, Weibin Zhang, Ciprian Gal, Daniel DeLayo, Chandan Ghosh, Dustin McNulty, Sakib Rahmans, Kent Paschke, Michael Gericke


Stony Brook Group is making progress on

  • Radiation simulations, particularly with getting the updated Remoll to work with all of the up-to-date geometries and updating the analysis scripts
  • Shower Max Splashback - results should be available soon, simulations are running on the SBU cluster
  • Blackening study - Generators are being written for testing the parametrized detectors, one at a time, and as an assembly
  • The vacuum canister study depends on the radiation simulation's geometry update to some extent and can be done soon

Spin precession:

  • Ciprian has initial results from the new spin precession functionality in remoll
  • The spins appear to be symmetric about septant's phi-centers, and Ciprian will update us soon about the effect of not canceling the left and right halves of an individual detector
  • The transverse spin component is never more than 35% or so of the total spin (per remoll), and maxes out at about 45% (per simple formula)
  • The larger transverse polarized electrons are biased to low radii and phi near the center of septants, so it is likely that we could actually measure the effect of transverse polarization with the segmentation we already plan to have

Return to Teleconferences
Return to MOLLER at 11 GeV E09-005