MainPage:Nuclear:Summer2015:AlexKaonElectroproduction

Mduality

Nominal cuts:

Acceptance

HMS

-10 < hsdelta < 20

-0.1 < hsxptar < 0.1

-0.1 < hsyptar <0.1

SOS

-20 < ssdelta < 40

-0.1 < ssxptar < 0.1

-0.1 < ssyptar <0.1

Particle Identification (PID) Cuts

HMS:

(haero_po+haero_ne) < 1 -8 ns < coincidence time < -6.5 ns 1.05 < missing mass < 1.25

SOS

scer >0.5

Scaler Analysis Spredsheet

File:Efficiency analysis.xls

Missing mass vs. coincidence time
HMS aerogel with strict cuts to eliminate events that give a signal (pions at this momentum)
coincidence time vs missing mass with no aerogel cherenkov signal.
HMS aerogel spectrum
SOS acceptance momentum
HMS acceptance momentum
HMS acceptance horizontal
HMS acceptance vertical
calculated missing mass vs. Analyzer - works!