ger

1. Cosmic Ray
BY Franky

2. The momentum magnitude of the Dimuon system
(100k data universally)

3. The momentum magnitude of the Dimuon system
(Opposite charge only)

4. The momentum magnitude of the Dimuon system
(Same charge only)

5. COSMIC RAY

Net momentum magnitude = 0

6. M-eta1 M-eta2

7. What about same charge?

9. How many?
for i=1:99935
if mag(i)<=2
cosnum=cosnum+1;
end
end
>> cosnum
cosnum =
1370
One in a hundred

10. for i=1:99935
if (80<=Dimuon.M(i))&(Dimuon.M(i)<=100)
zsum=zsum+1;
end
end
>> zsum=446
zsum =
446
Even less