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LPAIR+others: fix of single-dissociation symmetrisation #79

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merged 5 commits into from Apr 6, 2024

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forthommel
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@forthommel forthommel commented Apr 6, 2024

With this PR, the single-dissociative LPAIR process implementation is properly handling the symmetrise flag, to properly mirror in z coordinate the outgoing central+beam remnants systems, as well as the intermediate partons.

It also introduces a test case for the correctness of the factor 2 introduced when symmetrising the SD case.

As a result, the symmetrisation was also introduced in all factorised processes (which can now also be tested alongside).

FYI: @bbilin
Fixes #78

@forthommel forthommel added this to the v1.2.3 milestone Apr 6, 2024
@forthommel forthommel self-assigned this Apr 6, 2024
@forthommel forthommel changed the title LPAIR: fix of single-dissociation symmetrisation LPAIR+others: fix of single-dissociation symmetrisation Apr 6, 2024
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bbilin commented Apr 6, 2024

Hi @forthommel great to see this. On our CMS side, we will have a new CMSSW version built only on monday, so if you think this can go in, that would be great.

Thanks

@forthommel forthommel merged commit bde2689 into cepgen:master Apr 6, 2024
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@forthommel forthommel deleted the fix-lpair_symmetrisation branch April 6, 2024 08:52
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LPAIR-SD: symmetrisation not handled
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