Superchic_i: Add python class converting LHE file for Pythia

This MR adds python class for conversion of SuperChic's output LHE file contents to ones accepted by Pythia for correct FSR simulation. It should only be used for γγ -> ll processes.

• Replaces init block: changes beam particles from ions to muons and their energy to be equal to ion beam.
• Changes photon: px and py to zero and energy to pz.
• Recalculates energy scale to be equal: (pT_l1 + pT_l2) / 2

Example: /afs/cern.ch/user/k/kciesla/public/master-superchic-lheconverter/run

Pinging: @mdyndal

This merge request affects 1 package:

• Generators/Superchic_i

This merge request affects 1 file:

• Generators/Superchic_i/python/LheConverter.py

added Generators master review-pending-level-1 labels

The system determined that CI tests (with names matching "^CITest_Trigger.*$") are not needed for this code change. They are not run. This is not an indicator to restart the job.

CI Result SUCCESS (hash 960653df)

	Athena	AthSimulation	AthGeneration	AnalysisBase	AthAnalysis	DetCommon
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view. Check the JIRA CI status board for known problems
Athena: number of compilation errors 0, warnings 1
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 1
AnalysisBase: number of compilation errors 0, warnings 0
AthAnalysis: number of compilation errors 0, warnings 0
DetCommon: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 52122]

Changes look fine from L1 point of view, but the CI is complaining about a missing copyright statement in the beginning of the file. Could you please add this?

Kira (L1)

added review-user-action-required label and removed review-pending-level-1 label

added 1 commit

• 56dc7def - Added copyright statement

Compare with previous version

This merge request affects 1 package:

• Generators/Superchic_i

This merge request affects 1 file:

• Generators/Superchic_i/python/LheConverter.py

added review-pending-level-1 label and removed review-user-action-required label

The system determined that CI tests (with names matching "^CITest_Trigger.*$") are not needed for this code change. They are not run. This is not an indicator to restart the job.

CI Result SUCCESS (hash 56dc7def)

	Athena	AthSimulation	AthGeneration	AnalysisBase	AthAnalysis	DetCommon
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view. Check the JIRA CI status board for known problems
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
AthAnalysis: number of compilation errors 0, warnings 0
DetCommon: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 52232]

Approving

added review-approved label and removed review-pending-level-1 label

resolved all threads

merged

mentioned in commit 785409e2

added sweep:ignore label