Pavel: will it be possible to compare the MSHT and NNPDF NNLO and aN3LO luminosities with the |y_X | < 2.5 cut? This is most relevant for the measurements.
Energies: √s=7,8,13,13.6,14,33,100 TeV
PDF Sets:
NNLO PDFs | aN3LO PDFs |
---|---|
MSHT | MSHT |
NNPDF4.0 | NNPDF4.0 (prelim) |
PDF4LHC21 |
Coefficient Function: Always N3LO (even when using NNLO PDFs)
Recreate plots similar to Fig. 2 in iHixs, showing only the uncertainties:
or (for aN3LO PDFs):
We will omit uncertainties not relevant to the study (namely δ(EW), δ(αs),δ(1/mt),δ(t,b,c). Note that we can get away with varying both muR & muF instead of only muR (as recommended by MSHT20 aN3LO) since the muF variation is anyway tiny. see e.g. Fig. 2 (top) in [https://arxiv.org/pdf/2209.06138.pdf].
Main production code is iHixs (validated on HTL with ggH and n3loxs).
Produce tables with:
Comments made by observing preliminary results presented in the initial session: The aN3LO/NNLO k-factor for MSHT ~0.98 and for NNPDF looked ~1 (warning: preliminary). The NNPDF NNLO result is above the MSHT result and so at aN3LO we may see an even larger disagreement.
Ratio plots for PDFs and Luminosities.
Order | Sets | |
---|---|---|
xg(x) | aN3LO/NNLO | MSHT/MSHT |
NNPDF/NNPDF | ||
Lgg | aN3LO/NNLO | MSHT/MSHT |
NNPDF/NNPDF | ||
Lgg | NNLO/NNLO | MSHT/PDF4LHC |
NNPDF/PDF4LHC |
The luminosity plots should also be created with |yX|<2.5 to see the impact of the Higgs rapidity cut.