[Hps-analysis] Bump hunt cuts
Rafayel Paremuzyan
rafopar at jlab.org
Sat Dec 1 21:32:55 EST 2018
Dear all,
I modified a little bit MOUSE cuts, in particular loosened them.
<maxVertexP> 2.8 </maxVertexP>
was 1.2*Eb, thic cut is almost the same as the mosue
<minVertexChisqProb> 1.7e-16 </minVertexChisqProb>
Vertex fit chi2, this corresponds to chi2?NDF to be less than 20, before
it was around 6, but this is not increasing the number of events too much,
since most of events are at low chi2/NDF
<maxVertexClusterDt> 2.5 </maxVertexClusterDt>
time difference between clusters, was 2
<maxTrackChisq5hits> 60. </maxTrackChisq5hits>
<maxTrackChisq6hits> 72. </maxTrackChisq6hits>
Track fit Chi2 cuts. Was around, now this corresponds to chi2/NDF = 12
The most important modification is the electron momentum cut in the
final state particles
<maxElectronP> 2.6 </maxElectronP>
was 0.75 Eb, When we apply all other selection cuts, we don't see any
FEE peak in the electron momentum distribution,
therefore I feel safe to release it effectively no cut.
The consequence is that "OtherElectron" collection mostly will be empty.
I applied MOUSE cuts to pass1 data except the electron momentum cut, and
attached is the comparison of the one with MOUSE cuts, and the one from
pass1.
The red histogram represents 1 new cooked file with MOUSE cuts, and is
scaled N_recon(pass1)/N_recon(new file),
and as they agree with statistical uncertainty.
Please let me know, if you have comments on this
Rafo
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