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recognizing collinear distribution type #265
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More than automated recognition, I'd say we need to explicitly specify the number of distributions involved in the PineAPPL grid explicitly. Do we really need to make PineAPPL aware of the kind of the distribution? It should not matter whether they are two PDFs or one PDF and one FF (or two FFs). For the sake of interpolation, only the number of distributions should be relevant. Correct? @felixhekhorn @cschwan (of course you could always store the type in metadata, but this would be a convention on PineAPPL usage, no need to make PineAPPL aware and hardcoded) |
For these applications the metadata isn't properly named, so think of See also #135. |
@cschwan how about also adding a final_state_1 key? This could also make it clear whether the convolution is with a PDF or FF and ultimately the 3 convolutions (2 pdfs and 1 ffs) would also benefit from it. |
I'd rather name them |
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Closed in favor of #135. |
When producing grids with a FF instead of a PDF, we need to trick PineAPPL faking DIS to make it produce actual result.
Specifically:
this problem will also persist for "higher collinear distribution dimension":
sincerely,
@felixhekhorn
PS: the relevant line at which we crashed is
pineappl/pineappl/src/grid.rs
Line 559 in b1036ae
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