Citizen Science Episode 3
In this new episode of Citizen Science on Hive @lemouth introduce us to detector effects and event reconstruction.
All the steps including links to previous episodes can be found in his post:
The first task of this episode consisted in the installation of a new tool: MadAnalysis 5
The command to use was:
It worked fine for me:
But when i wanted to launch the tool with:
I had an error message about python:
I should mention that my Ubuntu is running in Virtualbox and it asked me to update when it was launched for this session. I did restart, and python3 also updated, but it doesn't seem to be accessible anymore. I have done a lot of research for this problem and will save you all the unsuccessful attempts to solve it. So I give the solution that allowed me to remove this error message and to be able to launch Ma5:
sudo apt install python-is-python3
I give the source where i found the solution:
So I was able to continue in the task:
Pdflatex and Latex where missing, i tried to install them using the link provided by @lemouth but for some reason it didn't work.
So i did another research and i found a solution here:
and I installed the full version:
And it worked fine:
For the task 2 of this episode I had to install 2 more packages:
(this one was already installed during my tests to solve Python problem)
So we are now ready for Task 3: Top-antitop simulations
I started Ma5 as described:
./bin/ma5 -R madanalysis/input/ATLAS_default.ma5
and the following commands:
set main.outputfile = myevents.lhe.gz
I had some problems again to enter the path correctly but i did it:
We are now on the last task "Some physics - task 4"
I restarted Ma5
and I entered the following commands:
ma5> import ANALYSIS_0/Output/SAF/_defaultset/lheEvents0_0/myevents.lhe.gz as ttbar
ma5> set ttbar.xsection = 505.491
ma5> plot NAPID
The reward is this beautiful graphic that you get when you enter:
I had some problems, probably related to my lack of practice with Linux, but nothing insurmountable, I progress and I usually find the solution by using a search engine with the right keywords.
Posted with STEMGeeks