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@Radonirinaunimi Radonirinaunimi commented Jan 11, 2026

The following PR allows fixing one of the convolutions and return a new Grid with lower dimension. For eg. it can be used to convert a SIDIS grid into DIS.

TODO:

  • simplify a bit the logic
  • improve the error handling and CLI interface
  • perform extensive checks (checked in DY-like and single-inclusive hadron production cases)
  • propagate into the APIs

cc @vbertone

@Radonirinaunimi Radonirinaunimi linked an issue Jan 11, 2026 that may be closed by this pull request
Radonirinaunimi and others added 3 commits January 20, 2026 10:26
Co-authored-by: Felix Hekhorn <felixhekhorn@users.noreply.github.com>
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With this, I believe this is now done.

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I'm not sure the following situation is covered: one PDF + one FF and you integrate out the PDF, thereby getting rid of the factorization scale (logs). Can you check that?

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I'm not sure the following situation is covered: one PDF + one FF and you integrate out the PDF, thereby getting rid of the factorization scale (logs). Can you check that?

I implemented that specific case in 3775166 and e26d360.

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Add operation to partially convolve a grid

4 participants