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Evol: NNLO Polarized #40

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giacomomagni opened this issue Jan 31, 2023 · 1 comment
Open

Evol: NNLO Polarized #40

giacomomagni opened this issue Jan 31, 2023 · 1 comment

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@giacomomagni
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While doing the benchmark of NNLO polarized evolution with Eko,
I found two things which are not fully consistent:

  • P_{ns,s} is not implemented here, but it's available from this source ref eq 23, 25.
    This should have a minor effect on the Valence distribution.
  • As far as I understand, VFNS evolution is not possible since polarized matching conditions are not implemented.
@vbertone
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Hello Giacomo, yes, you are correct on both counts.
I wasn't indeed aware that P_{ns,s} had been calculated. Thanks for pointing it out.
I will try to have it implemented as soon as possible.

@giacomomagni giacomomagni mentioned this issue Feb 3, 2023
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@vbertone @giacomomagni