Difference between revisions of "January 30, 2014 - Special Theory Meeting"

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; Remote call-in information TBD
 
; Remote call-in information TBD
  
== Agenda ==
+
== BACKGROUND FOR THEORISTS==
; Brief Introduction
+
 
; Discussion of questions provided below grouped by topic
+
; OUR EXPERIMENTAL PROGRAM
; Summary of future plans
+
: To precisely measure scattering asymmetry of spin polarized electrons from thin pure Z foils
 +
: Accessible energy range is about 3 to 8 MeV
 +
: Targets on hand are gold, silver, copper foils of varying thickness, but can install others readily
 +
: Measure polarimeter systematics with goal <0.5%
 +
 
 +
; SIMULATION PROGRAM
 +
: Build GEANT4 model of polarimeter and benchmark detector response against measurement
 +
: Implement physics (cross-section, Sherman function, spin transfer functions) provided by theory
 +
: Develop ab initio simulation dependence of asymmetry on target thickness (multiple scattering, radiation effects, etc) to measurement
 +
: By calibrating model to experimental data predict zero-thickness asymmetry with high precision <1%
 +
 
 +
; THEORY PROGRAM
 +
: Provide physics tables for simulation (cross-section, Sherman function, spin transfer functions)
 +
: Describe theoretical basis, corrections, uncertainties
 +
: Advise which measurements may be best tests on leading corrections or limit absolute knowledge of physics
  
 
== Questions (Please follow format shown) ==
 
== Questions (Please follow format shown) ==

Revision as of 20:38, 15 January 2014

Special Theory Meeting

Meeting Logistics

Thursday, January 30th 9am EST
JLAB Meeting Room TBD
Remote call-in information TBD

BACKGROUND FOR THEORISTS

OUR EXPERIMENTAL PROGRAM
To precisely measure scattering asymmetry of spin polarized electrons from thin pure Z foils
Accessible energy range is about 3 to 8 MeV
Targets on hand are gold, silver, copper foils of varying thickness, but can install others readily
Measure polarimeter systematics with goal <0.5%
SIMULATION PROGRAM
Build GEANT4 model of polarimeter and benchmark detector response against measurement
Implement physics (cross-section, Sherman function, spin transfer functions) provided by theory
Develop ab initio simulation dependence of asymmetry on target thickness (multiple scattering, radiation effects, etc) to measurement
By calibrating model to experimental data predict zero-thickness asymmetry with high precision <1%
THEORY PROGRAM
Provide physics tables for simulation (cross-section, Sherman function, spin transfer functions)
Describe theoretical basis, corrections, uncertainties
Advise which measurements may be best tests on leading corrections or limit absolute knowledge of physics

Questions (Please follow format shown)

Question #1 added by Who on When
My question is...
Question #2 added by Who on When
My question is...
Question #3 added by Who on When
My question is...
Please copy and paste format, and so on...