# Difference: Brenoorzari (22 vs. 23)

#### Revision 232019-07-12 - brenoorzari

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# Title

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The macro punzi_eff_bg_separated.C was created for that, and I'm calculating 2 types of efficiencies: in one of them, I'm summing (BGeff*BGxsec) and then multiplying it by 40000 (that is the luminosity required); in the other one, I'm summing (nBGfin/nBGini), than multiplying by the sum of (BGxsec) and than multiplying by 40000. The punzi eff is being calculated as sigeff/sqrt(1+BG), where BG is (nBGfin/nBGini)*BGxsec*lumin. I'm having some numerical problems since C++ doesn't want to show me the values of the calculations because nfin/nini << 1. I'll try some procedures to make it work.
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### 12/07/2019

In the last days I've been calculating the efficiencies of some cuts in the events. The files are named as punzieff_something, and the results are pretty impressive. I still need (in some of the graphs of eff_BG x eff_sig) to find the right values of the cuts for each dot.

Besides that, I've talked to Thiago, and we decided to simulate more processes for the dark Higgs signal with different m_{d{H}} and m_{Z'}. The tables below comprise the values of the cross sections for those processes (300k events were simulated for each pair of masses, using access2 from gridunesp):

*m_{Z'} = 1100 GeV, m_{\chi} = 100 GeV:

m_{d_{H}} [GeV] approx x-sec [pb]
50 0.874
60 0.788
70 0.711
80 0.643
90 0.583
100 0.530
110 0.477
120 0.410
130 0.325
140 0.222
150 0.118
160 0.0313
170 0.0059
180 0.0037

*m_{d_{H}} = 70 GeV, m_{\chi} = 100 GeV:

m_{d_{H}} [GeV] approx x-sec [pb]
500 4.443
625 3.116
1000 0.961
1100 0.711
1500 0.230
1700 0.137
2000 0.065
2500 0.020
3000 0.0068
3500 0.0024
4000 0.00083

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