Skip to content

N3lo benchmark#2498

Draft
evagroenendijk wants to merge 5 commits into
masterfrom
n3lo_bench
Draft

N3lo benchmark#2498
evagroenendijk wants to merge 5 commits into
masterfrom
n3lo_bench

Conversation

@evagroenendijk

@evagroenendijk evagroenendijk commented Jul 8, 2026

Copy link
Copy Markdown
Contributor

The theory cards used to produce DIS predictions for the N3LO benchmark. Related to NNPDF/pinecards#199

reference document: https://docs.google.com/document/d/1xGwpdlhm93cKxmXuLVRMK4WINwYxmmZJ/edit

@evagroenendijk
evagroenendijk marked this pull request as draft July 8, 2026 14:57
@felixhekhorn
felixhekhorn self-requested a review July 8, 2026 15:25

@felixhekhorn felixhekhorn left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

If you want to read more about FONLL schemes (i.e. FONLL-A vs. FONLL-B vs. FOLL-C etc) see https://inspirehep.net/literature/2818030 or better the original paper https://inspirehep.net/literature/842785

ID: 41_002_200
Comments: N3LO benchmark, NNPDF4.1 LO QCD-only (GM-VFNS=FONLL)
PTO: 0
FNS: FONLL-C

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggested change
FNS: FONLL-C
FNS: ZM-VFNS

We never implemented "FONLL-0" (which is a term we invented ourselves), i.e. FONLL at LO, so we can actually not do it properly - however, since we will only deal with perturbative charm in this exercise here, there is no GM-VFNS in the first place and thus we can safely assume ZM here.

(I think pineko will not like putting "FONLL-C" here ...)

ID: 41_002_201
Comments: N3LO benchmark, NNPDF4.1 NLO QCD-only (GM-VFNS=FONLL)
PTO: 1
FNS: FONLL-C

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggested change
FNS: FONLL-C
FNS: FONLL-A

FNS: ZM-VFNS
DAMP: 0
IC: 1
Q0: 1.65

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggested change
Q0: 1.65
Q0: 1.0

Here and everywhere else

Copy link
Copy Markdown
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I don't think we want this for the generation of the observables right? For the F2's we want to use our own PDFs, while only for evolving the toy PDF we want Q0=1, correct?

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

As we discussed (and hopefully will soon be officially confirmed): I understood we want toy for everything

Qref: 91.19
alphas: 0.118
alphaqed: 0.0075700
nf0: 4

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggested change
nf0: 4
nf0: 3

Here and everywhere else

Comment thread nnpdf_data/nnpdf_data/theory_cards/41002200.yaml
FNS: ZM-VFNS
DAMP: 0
IC: 1
Q0: 1.65

Copy link
Copy Markdown
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I don't think we want this for the generation of the observables right? For the F2's we want to use our own PDFs, while only for evolving the toy PDF we want Q0=1, correct?

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants