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BEMC Trigger Code Test

 BEMC Input Bits for Layers 0-2:

  Left Plots show DSM input from data (L0) or simulation (L1, L2)

JP1 & JP2 Turn on efficiency

I used the 2006 MuDsts to generate the turn on curves for the JP1 and JP2 triggers. Both plots are integrated over all jet patches.

Hermes alignment system

Hermes ref

W Program talk for SPIN 2008

Draft for practice talk at analysis meeting

spin goals run 9 draft talk

Draft of run 9 goals attached

Mean pT in z bins

I looked into the mean transverse momentum for pions and jets in each of my z bins. First, here’s a comparison of data (black points) and Monte Carlo (red lines) for the BJP1 trigger:

It looks good to me, so I went on to compare simulations for jet patch and minimum-bias triggers:

In hindsight, this plot makes perfect sense — the trigger hardens the pT spectrum for the jets, so each JP z bin (which integrates over 10-25 GeV) has a higher average jet p_{T} than the MB version.

Now, this 3 GeV p_{T} shift means that we’re biasing the sample in each z bin towards higher x. This is almost certainly the source of the observed trigger bias in the Monte Carlo asymmetries for π+. So, what’s the next step?

Writing and Editing Guidelines

A former classmate of mine from 6th Form College (equivalent to final two years of high school) is now a professional writer and editor.

Left - Right Shower Shape Differences

23 Sept 2008

data volume (strips)

 Number of strips fired per wafer and per side :

PPV Revision 1.29 - A closer look at unmatched PPV vpd Events

Further details to follow when I'm someplace with civilized internet access.

triggers are: bbc+bh1-mb+etot-mb-l2+jpt-mb-l2+bh2-mb-slow