PC-2015-09-04¶

Chris Rogers
John Nugent
Dimitrije Maletic

Separately, due to problems with phone connection:
Celeste Pidcott

John Nugent
Continuing with the alignment study
Millipede algorithm working
Tying down specific issues with output/input;

• how do we define specific issues with the output;
• compare internal tracker alignment with internal survey information
• meeting next week with developer

Dimitrije

• No update

Celeste

• Switched analysis to MAUS v1.0.0
• Pulled down geometries
• Found out reducers don't work with the new API unless you include the correct file from the API
• Turning analysis into "probability per angle"; looking at errors bin-by-bin
  • MuScat quote MC 1.2 % error for lH2 in central bin
  • MuScat quote MC 100 % error in tail bins
  • MuScat quote Data 4 % error for lH2 in central bin, increasing towards tails
  • Need to consider how to turn an error in measured angle plus number of events into an error in number of particles per bin
  • MuScat quote 1e6 to 2e6 muons per material
• Some discussion of the "propagation of errors" note in #1600