di-jet system select

Asked by Zhicheng Liu on 2017-07-09

Dear MadAnalysis Team,

In analysing events with 4b channel of pair-production of higgs, I want to make four b-jets into two dijet systems,
and set Pt cut on leading jj and subleading jj. If I use select PT(j[1] j[2]) > 200 command, the leading jet and subleading jet maybe come from different higgs. How can I set cut on (sub)leading jj pair?
By the way, if I want to set a set mass-dependent criteria, can I set different select cuts on different signals which are imported by different event files?

Cheers,
Yuchen

Question information

Language:
English Edit question
Status:
Solved
For:
MadAnalysis 5 Edit question
Assignee:
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Solved by:
Benjamin Fuks
Solved:
2017-07-16
Last query:
2017-07-16
Last reply:
2017-07-13
Best Benjamin Fuks (fuks) said : #1

Dear Yuchen,

> In analysing events with 4b channel of pair-production of higgs, I want to make four b-jets into two dijet systems,
> and set Pt cut on leading jj and subleading jj. If I use select PT(j[1] j[2]) > 200 command, the leading jet and subleading jet maybe come from different higgs. How can I set cut on (sub)leading jj pair?
For this, I guess the best awy would be to use the expert mode of the program in which you can implement more complicated conditions to identify which jet is coming from which Higgs. I do not see how to implement that in the normal mode of the program as it is not clear to me how to simply express the condition (I can imagine that some angular information with nested if statements shoujld be involved in the condition).

> By the way, if I want to set a set mass-dependent criteria, can I set different select cuts on different signals which are imported by different event files?
Again, the expert mode is the way to go.

You can find more information here: https://arxiv.org/abs/1405.3982 <https://arxiv.org/abs/1405.3982>

Cheers,

Benjamin

Zhicheng Liu (zhichengonly) said : #2

Thanks Benjamin Fuks, that solved my question.