Add a few EPOS4 configurations - #2455
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REQUEST FOR PRODUCTION RELEASES: This will add The following labels are available |
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| ! Oxygen-Oxygen collisions with hydro and hadronic cascade | |||
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| ! Oxygen-Oxygen collisions with hydro and hadronic cascade | |
| ! Oxygen-Oxygen collisions without hydro and with hadronic cascade |
| set centrality 0 !0=min bias | ||
| set ihepmc 2 !HepMC output enabled on stdout | ||
| fillTree4(C1) !C1 sets impact parameter as centrality variable | ||
| hepmc_rapcms 0.346 !boost output to real asymmetric p/O beam frame (p: 6800 GeV) |
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| hepmc_rapcms 0.346 !boost output to real asymmetric p/O beam frame (p: 6800 GeV) | |
| hepmc_rapcms 0.3466 !boost output to real asymmetric p/O beam frame (p: 6800 GeV, O: 3400 GeV) |
victor-gonzalez
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victor-gonzalez
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@jackal1-66, thank you!!
I left a few suggestions in case you want to consider them
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I would suggest to either rename the |
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Ciao @victor-gonzalez thank you for your comments. I changed the description in the headers, however I didn't implement your change into the rapidity boost, as it seems to be incorrect. I ran some additional tests and put a more precise value. I will rename and move in common the files in the example folder in a second moment with a dedicated PR and follow the "_hydro" standard that I set in this PR. For now I would try to put these configurations in so that we can test them in HY. |
EPOS4 physics generation always happens internally in the symmetric nucleon-nucleon CM frame. hepmc_rapcms does not change that internal physics, but it applies a rigid rapidity boost (dy = -hepmc_rapcms, applied in src/KW/out.f → fillhepmc) to every particle written to output, which means re-expressing the same collision in the lab frame. This is here used for pO and should be used for p-Pb as well (the shift there is 0.465, from the same `Δy = 0.5·ln(E_p/E_target-per-nucleon` formula).
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EPOS4 physics generation always happens internally in the symmetric nucleon-nucleon CM frame. hepmc_rapcms does not change that internal physics, but it applies a rigid rapidity boost (dy = -hepmc_rapcms, applied in src/KW/out.f → fillhepmc) to every particle written to output, which means re-expressing the same collision in the lab frame. This is here used for pO and should be used for p-Pb as well (the shift there is 0.465, from the same
Δy = 0.5·ln(E_p/E_target-per-nucleonformula).