Spin PWG

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Drifting FMS Trigger Thresholds for Run12 pp500

In the trigger trees, L2sum is a 64 bit stream of trigger level 2 outputs, taking into account prescaling; it is stored as an array of two C++ ints.

DIS 2016 -- Proceedings

Run-11 Transverse Jets: Updated PID Systematic Proposal

I have folded the previously discussed PID systematic proposal into the high-pT Collins analysis. Here, I will lead with the bottom-line.

Run-11 Transverse Jets: Investigating the PID Systematic

One of the (final) remaining questions concerning the high-pT Collins result is the PID systematic. We estimate there are two contributions:

test

 

Run-11 Transverse Jets: Fine Bins vs. Single Bin

I updated the background correction for high-pT.

Run 12 TCU Inputs from FP201

We have found that L2sum[0]==L2sum[1], up to occasional single-bit differences. This is problematic, since many triggers we would like to select are supposed to be in L2sum[1] but aren't accessible.

DIS 2016 -- Presentation

UV LEDs

Run 15 Spin QA Update 3

 An update on run 15 spin qa after doing the pAu and pAl periods

List of fills that had runs taken out, with run numbers

F19059-R16133084

Progress on reading MuDSTs

FMS Run 15 Analysis (Starting Steps)

 

A_LL paper status

Partial Wave Expansion IFF

 

DNP 2015 -- Presentation

[ LATEST VERSION ]

v0: rough draft; need to update motivation and add asymmetry projections;

RP Basic Trigger Event Display and Inner vs. Outer Timing

While awaiting our production of new FMS trigger data analysis trees which include upgrades such as RP QT info, BBC QT info, and additional variables from the clustering algorithm, I decided to l

RP ADC and TAC Distributions

The following is data from the QT block read out of PP001, the RP QT boar.d for the 8 PMTs.

Three-by-three pattern in Scaler Counts Ratios

During the initial studies of scaler asymmetries using bunch-fitting algorithm, we noticed that there was a "pattern of threes" in the ratio of scaler counts from one detector to another plo

Talk at the Spin PWG - 6 Aug 2015

Plots for the GPC - July 14, 2015

We have removed from the draft the figure showing the correction factor (former figure 1 of draft v4.3)