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ToyTree 20181117 (Workflow (Parameter (amount of signal event, mean value…
ToyTree
20181117
Workflow
print data
Decide the signal and background
Select the range to fit
fit function
use gausn and expo
Chi2 is about 4
not a very large number
fitting success
Parameter
amount of signal event
mean value of mass
the RMS of signal
look up the table
check the mass of elementary particle from wiki
https://en.wikipedia.org/wiki/List_of_particles
W boson 80.4
Z boson 91.2
Z boson falls in 1 sigma interval
Outline
Workflow
Conclusion
Signal is Z boson dimoun decay
Next step
Try to use the method about select different pt bins
Teacher assignment