Meeting No.2: T3 - Asymmetry (GMn)

How DL.T3 depends on DL.evtypebits ?

Before I was able to calculate Asymmetries I had to decide which events to accept and which to deny. Therefore I checked how variable DL.t3 depends on event-type variable DL.evtypebits.

Deuterium elastic run #2164:

Production run #2641:


T3 asymmetry calculation

Unpolarized target check?

First I run my code on two runs win unpolarized target in order to see if the asymmetry for this case is zero, as it should be?

Deuterium run:


Carbon run:


First Results - on my home computer & Farm

For this analysis I considered only first 1.5M events.



Example run 2640:


Example run 2641:



Full run analysis:

So far I was able to analyze approx. 90 full runs on FARM. Here are the results for the "raw" T3 asymmetry:

Longitudinal - HWP in:


Longitudinal - HWP out:


Longitudinal Results:

Transverse - HWP out - spin +:


Transverse - HWP out - spin -:


Transverse Results:

Last Modified: 08/24/09