Comparison between 210719-theory-003 and 210713-n3fit-001

Summary

We are comparing:

NNPDF4.0 (pert. charm) (210719-theory-003): NNPDF4.0 NNLO global pert. charm fit, alphas=0.118
NNPDF4.0 (fitted charm) (210713-n3fit-001): NNPDF4.0 NNLO global baseline fit, alphas=0.118

	NNPDF4.0 (pert. charm)	NNPDF4.0 (fitted charm)
χ²	1.19807	1.16173
< E_trn>	2.312±0.064	2.263±0.065
< E_val>	2.43±0.12	2.36±0.10
< TL>	11500±2500	13500±2300
< χ²>	1.222±0.024	1.188±0.016
ϕ	0.1555±0.0076	0.1608±0.0050

Theory covariance summary

	NNPDF4.0 (pert. charm)	NNPDF4.0 (fitted charm)
sampling	False	False
fitting	False	False
validphys statistical estimators	False	False

Dataset properties

	Training fraction	Weight	C-factors	Other fields
Dataset
NMCPD_dw_ite	0.75	1	-	custom_group: unset
NMC	0.75	1	-	custom_group: unset
SLACP_dwsh	0.75	1	-	custom_group: unset
SLACD_dw_ite	0.75	1	-	custom_group: unset
BCDMSP_dwsh	0.75	1	-	custom_group: unset
BCDMSD_dw_ite	0.75	1	-	custom_group: unset
CHORUSNUPb_dw_ite	0.75	1	-	custom_group: unset
CHORUSNBPb_dw_ite	0.75	1	-	custom_group: unset
NTVNUDMNFe_dw_ite	0.75	1	MAS	custom_group: unset
NTVNBDMNFe_dw_ite	0.75	1	MAS	custom_group: unset
HERACOMBNCEM	0.75	1	-	custom_group: unset
HERACOMBNCEP460	0.75	1	-	custom_group: unset
HERACOMBNCEP575	0.75	1	-	custom_group: unset
HERACOMBNCEP820	0.75	1	-	custom_group: unset
HERACOMBNCEP920	0.75	1	-	custom_group: unset
HERACOMBCCEM	0.75	1	-	custom_group: unset
HERACOMBCCEP	0.75	1	-	custom_group: unset
HERACOMB_SIGMARED_C	0.75	1	-	custom_group: unset
HERACOMB_SIGMARED_B	0.75	1	-	custom_group: unset
DYE886R_dw_ite	0.75	1	QCD	custom_group: unset
DYE886P	0.75	1	QCD	custom_group: unset
DYE605_dw_ite	0.75	1	QCD	custom_group: unset
DYE906R_dw_ite	0.75	1	ACC, QCD	custom_group: unset
CDFZRAP_NEW	0.75	1	QCD	custom_group: unset
D0ZRAP_40	0.75	1	QCD	custom_group: unset
D0WMASY	0.75	1	QCD	custom_group: unset
ATLASWZRAP36PB	0.75	1	QCD	custom_group: unset
ATLASZHIGHMASS49FB	0.75	1	QCD	custom_group: unset
ATLASLOMASSDY11EXT	0.75	1	QCD	custom_group: unset
ATLASWZRAP11CC	0.75	1	QCD	custom_group: unset
ATLASWZRAP11CF	0.75	1	QCD	custom_group: unset
ATLASDY2D8TEV	0.75	1	QCDEWK	custom_group: unset
ATLAS_DY_2D_8TEV_LOWMASS	0.75	1	QCD	custom_group: unset
ATLAS_WZ_TOT_13TEV	0.75	1	NRM, QCD	custom_group: unset
ATLAS_WP_JET_8TEV_PT	0.75	1	QCD	custom_group: unset
ATLAS_WM_JET_8TEV_PT	0.75	1	QCD	custom_group: unset
ATLASZPT8TEVMDIST	0.75	1	QCD	sys: 10, custom_group: unset
ATLASZPT8TEVYDIST	0.75	1	QCD	sys: 10, custom_group: unset
ATLASTTBARTOT7TEV	0.75	1	QCD	custom_group: unset
ATLASTTBARTOT8TEV	0.75	1	QCD	custom_group: unset
ATLAS_TTBARTOT_13TEV_FULLLUMI	0.75	1	QCD	custom_group: unset
ATLAS_TTB_DIFF_8TEV_LJ_TRAPNORM	0.75	1	QCD	custom_group: unset
ATLAS_TTB_DIFF_8TEV_LJ_TTRAPNORM	0.75	1	QCD	custom_group: unset
ATLAS_TOPDIFF_DILEPT_8TEV_TTRAPNORM	0.75	1	QCD	custom_group: unset
ATLAS_1JET_8TEV_R06_DEC	0.75	1	QCD	custom_group: unset
ATLAS_2JET_7TEV_R06	0.75	1	QCD	custom_group: unset
ATLASPHT15_SF	0.75	1	QCD, EWK	custom_group: unset
ATLAS_SINGLETOP_TCH_R_7TEV	0.75	1	QCD	custom_group: unset
ATLAS_SINGLETOP_TCH_R_13TEV	0.75	1	QCD	custom_group: unset
ATLAS_SINGLETOP_TCH_DIFF_7TEV_T_RAP_NORM	0.75	1	QCD	custom_group: unset
ATLAS_SINGLETOP_TCH_DIFF_7TEV_TBAR_RAP_NORM	0.75	1	QCD	custom_group: unset
ATLAS_SINGLETOP_TCH_DIFF_8TEV_T_RAP_NORM	0.75	1	QCD	custom_group: unset
ATLAS_SINGLETOP_TCH_DIFF_8TEV_TBAR_RAP_NORM	0.75	1	QCD	custom_group: unset
CMSWEASY840PB	0.75	1	QCD	custom_group: unset
CMSWMASY47FB	0.75	1	QCD	custom_group: unset
CMSDY2D11	0.75	1	QCD	custom_group: unset
CMSWMU8TEV	0.75	1	QCD	custom_group: unset
CMSZDIFF12	0.75	1	QCD, NRM	sys: 10, custom_group: unset
CMS_2JET_7TEV	0.75	1	QCD	custom_group: unset
CMS_1JET_8TEV	0.75	1	QCD	custom_group: unset
CMSTTBARTOT7TEV	0.75	1	QCD	custom_group: unset
CMSTTBARTOT8TEV	0.75	1	QCD	custom_group: unset
CMSTTBARTOT13TEV	0.75	1	QCD	custom_group: unset
CMSTOPDIFF8TEVTTRAPNORM	0.75	1	QCD	custom_group: unset
CMSTTBARTOT5TEV	0.75	1	QCD	custom_group: unset
CMS_TTBAR_2D_DIFF_MTT_TRAP_NORM	0.75	1	QCD	custom_group: unset
CMS_TTB_DIFF_13TEV_2016_2L_TRAP	0.75	1	QCD	custom_group: unset
CMS_TTB_DIFF_13TEV_2016_LJ_TRAP	0.75	1	QCD	custom_group: unset
CMS_SINGLETOP_TCH_TOT_7TEV	0.75	1	QCD	custom_group: unset
CMS_SINGLETOP_TCH_R_8TEV	0.75	1	QCD	custom_group: unset
CMS_SINGLETOP_TCH_R_13TEV	0.75	1	QCD	custom_group: unset
LHCBZ940PB	0.75	1	QCD	custom_group: unset
LHCBZEE2FB_40	0.75	1	QCD	custom_group: unset
LHCBWZMU7TEV	0.75	1	NRM, QCD	custom_group: unset
LHCBWZMU8TEV	0.75	1	NRM, QCD	custom_group: unset
LHCB_Z_13TEV_DIMUON	0.75	1	QCD	custom_group: unset
LHCB_Z_13TEV_DIELECTRON	0.75	1	QCD	custom_group: unset

Distances

Q = 1.65 GeV

Flavour basis, Log

Flavour basis, Linear

Evolution basis, Log

Evolution basis, Linear

Q = 100 GeV

Flavour basis, Log

Flavour basis, Linear

Evolution basis, Log

Evolution basis, Linear

PDF arc-lengths

Sum rules

NNPDF4.0 (pert. charm)

Known sum rules

	mean	std	min	max
momentum	1.000	7.876E-6	1.000	1.000
uvalence	2.000	1.527E-4	1.999	2.000
dvalence	0.9999	1.510E-4	0.9993	1.000
svalence	1.312E-4	1.847E-4	-2.446E-4	1.101E-3

Unknown sum rules

	mean	std
u momentum fraction	0.3323	0.0021
ubar momentum fraction	0.0302	0.0010
d momentum fraction	0.1588	0.0020
dbar momentum fraction	0.0401	0.0015
s momentum fraction	0.0287	0.0026
sbar momentum fraction	0.0194	0.0012
cp momentum fraction	3.389E-3	5.0E-5
g momentum fraction	0.3873	0.0038
T3	0.80	0.31
T8	4.13	0.61

NNPDF4.0 (fitted charm)

Known sum rules

	mean	std	min	max
momentum	1.000	7.467E-7	1.000	1.000
uvalence	2.000	3.759E-6	2.000	2.000
dvalence	1.000	3.143E-6	1.000	1.000
svalence	2.162E-6	4.643E-6	-3.053E-5	2.360E-5

Unknown sum rules

	mean	std
u momentum fraction	0.3283	0.0028
ubar momentum fraction	0.0309	0.0010
d momentum fraction	0.1564	0.0028
dbar momentum fraction	0.0418	0.0016
s momentum fraction	0.0278	0.0030
sbar momentum fraction	0.0192	0.0016
cp momentum fraction	0.0088	0.0022
g momentum fraction	0.3868	0.0035
T3	0.83	0.27
T8	4.64	0.57

PDF plots

Plots at Q = 1.65 GeV

Plots at Q = 100 GeV

Luminosities

Plots at 13 TeV

Effective exponents

Detailed information

Training lengths

Training-validation

χ² by nnpdf31_process

χ² by experiment

χ² by dataset

Plot

Table

		NNPDF4.0 (pert. charm)		NNPDF4.0 (fitted charm)
		ndata	χ²/ndata	ndata	χ²/ndata
DEUTERON	Total	790	1.181	790	1.161
	NMCPD_dw_ite	121	0.8687	121	0.8699
	SLACP_dwsh	33	0.8084	33	0.9476
	SLACD_dw_ite	34	0.5564	34	0.6287
	BCDMSP_dwsh	333	1.457	333	1.410
	BCDMSD_dw_ite	248	1.034	248	1.013
	DYE886R_dw_ite	15	0.6180	15	0.4947
	DYE906R_dw_ite	6	0.8723	6	0.9338
NMC	Total	204	1.729	204	1.559
NMC	NMC	204	1.729	204	1.559
NUCLEAR	Total	993	0.8169	993	0.8225
	CHORUSNUPb_dw_ite	416	0.9608	416	0.9571
	CHORUSNBPb_dw_ite	416	0.8566	416	0.8683
	NTVNUDMNFe_dw_ite	39	0.2292	39	0.3497
	NTVNBDMNFe_dw_ite	37	0.7714	37	0.5644
	DYE605_dw_ite	85	0.4364	85	0.4580
HERACOMB	Total	1218	1.264	1208	1.203
	HERACOMBNCEM	159	1.371	159	1.402
	HERACOMBNCEP460	204	1.108	204	1.076
	HERACOMBNCEP575	254	0.9631	254	0.9034
	HERACOMBNCEP820	70	1.152	70	1.088
	HERACOMBNCEP920	377	1.452	377	1.294
	HERACOMBCCEM	42	1.192	42	1.248
	HERACOMBCCEP	39	1.171	39	1.235
	HERACOMB_SIGMARED_C	47	1.849	37	2.027
	HERACOMB_SIGMARED_B	26	1.553	26	1.428
DYE886	Total	89	1.572	89	1.597
DYE886	DYE886P	89	1.572	89	1.597
CDF	Total	28	1.309	28	1.275
CDF	CDFZRAP_NEW	28	1.309	28	1.275
D0	Total	37	0.9250	37	0.9516
	D0ZRAP_40	28	0.6460	28	0.6445
	D0WMASY	9	1.793	9	1.907
ATLAS	Total	679	1.274	679	1.243
	ATLASWZRAP36PB	30	1.037	30	0.9839
	ATLASZHIGHMASS49FB	5	1.827	5	1.683
	ATLASLOMASSDY11EXT	6	0.8056	6	0.8794
	ATLASWZRAP11CC	46	2.290	46	1.885
	ATLASWZRAP11CF	15	1.078	15	1.037
	ATLASDY2D8TEV	48	1.088	48	1.112
	ATLAS_DY_2D_8TEV_LOWMASS	60	1.221	60	1.218
	ATLAS_WZ_TOT_13TEV	3	1.097	3	0.8076
	ATLAS_WP_JET_8TEV_PT	15	0.8042	15	0.7909
	ATLAS_WM_JET_8TEV_PT	15	1.507	15	1.488
	ATLASZPT8TEVMDIST	44	0.8979	44	0.9054
	ATLASZPT8TEVYDIST	48	0.8958	48	0.8979
	ATLASTTBARTOT7TEV	1	4.125	1	4.590
	ATLASTTBARTOT8TEV	1	3.947E-3	1	2.449E-2
	ATLAS_TTBARTOT_13TEV_FULLLUMI	1	0.4988	1	0.5058
	ATLAS_TTB_DIFF_8TEV_LJ_TRAPNORM	4	3.287	4	3.216
	ATLAS_TTB_DIFF_8TEV_LJ_TTRAPNORM	4	3.348	4	3.772
	ATLAS_TOPDIFF_DILEPT_8TEV_TTRAPNORM	5	1.468	5	1.611
	ATLAS_1JET_8TEV_R06_DEC	171	0.6939	171	0.6968
	ATLAS_2JET_7TEV_R06	90	2.140	90	2.145
	ATLASPHT15_SF	53	0.7008	53	0.7699
	ATLAS_SINGLETOP_TCH_R_7TEV	1	0.4701	1	0.4896
	ATLAS_SINGLETOP_TCH_R_13TEV	1	6.990E-2	1	6.048E-2
	ATLAS_SINGLETOP_TCH_DIFF_7TEV_T_RAP_NORM	3	0.9544	3	0.9569
	ATLAS_SINGLETOP_TCH_DIFF_7TEV_TBAR_RAP_NORM	3	6.065E-2	3	6.194E-2
	ATLAS_SINGLETOP_TCH_DIFF_8TEV_T_RAP_NORM	3	0.2381	3	0.2491
	ATLAS_SINGLETOP_TCH_DIFF_8TEV_TBAR_RAP_NORM	3	0.2015	3	0.1887
CMS	Total	474	1.348	474	1.312
	CMSWEASY840PB	11	0.6970	11	0.8427
	CMSWMASY47FB	11	1.722	11	1.704
	CMSDY2D11	110	1.464	110	1.362
	CMSWMU8TEV	22	1.338	22	1.376
	CMSZDIFF12	28	1.326	28	1.405
	CMS_2JET_7TEV	54	1.793	54	1.806
	CMS_1JET_8TEV	185	1.256	185	1.190
	CMSTTBARTOT7TEV	1	0.8073	1	1.060
	CMSTTBARTOT8TEV	1	0.1615	1	0.2617
	CMSTTBARTOT13TEV	1	6.131E-2	1	5.913E-2
	CMSTOPDIFF8TEVTTRAPNORM	9	1.328	9	1.232
	CMSTTBARTOT5TEV	1	0.4879	1	0.5447
	CMS_TTBAR_2D_DIFF_MTT_TRAP_NORM	16	0.9390	16	1.032
	CMS_TTB_DIFF_13TEV_2016_2L_TRAP	10	0.5412	10	0.5160
	CMS_TTB_DIFF_13TEV_2016_LJ_TRAP	11	0.5805	11	0.6293
	CMS_SINGLETOP_TCH_TOT_7TEV	1	0.7934	1	0.7289
	CMS_SINGLETOP_TCH_R_8TEV	1	0.1705	1	0.1721
	CMS_SINGLETOP_TCH_R_13TEV	1	0.3736	1	0.3544
LHCb	Total	116	1.663	116	1.551
	LHCBZ940PB	9	1.508	9	1.650
	LHCBZEE2FB_40	17	1.821	17	1.326
	LHCBWZMU7TEV	29	1.653	29	1.965
	LHCBWZMU8TEV	30	1.541	30	1.423
	LHCB_Z_13TEV_DIMUON	16	1.433	16	0.9896
	LHCB_Z_13TEV_DIELECTRON	15	2.202	15	1.721
Total	Total	4628	1.198	4618	1.162

ϕ by nnpdf31_process

ϕ by experiment

Dataset plots

Plots for HERACOMBCCEM

Plots for HERACOMBCCEP

Plots for HERACOMBNCEM

Plots for HERACOMBNCEP460

Plots for HERACOMBNCEP575

Plots for HERACOMBNCEP820

Plots for HERACOMBNCEP920

Plots for NMC

Plots for ATLASLOMASSDY11EXT

Plots for ATLASWZRAP36PB

Plots for ATLASZHIGHMASS49FB

Plots for ATLASZPT8TEVMDIST

Plots for ATLASZPT8TEVYDIST

Plots for CMSDY2D11

Plots for CMSWEASY840PB

Plots for CMSWMASY47FB

Plots for LHCBWZMU7TEV

Plots for LHCBWZMU8TEV

Plots for LHCBZ940PB

Plots for CMSTOPDIFF8TEVTTRAPNORM

Plots for ATLASDY2D8TEV

Plots for ATLASPHT15_SF

Plots for ATLASTTBARTOT7TEV

Plots for ATLASTTBARTOT8TEV

Plots for ATLASWZRAP11CC

Plots for ATLASWZRAP11CF

Plots for ATLAS_1JET_8TEV_R06_DEC

Plots for ATLAS_2JET_7TEV_R06

Plots for ATLAS_DY_2D_8TEV_LOWMASS

Plots for ATLAS_SINGLETOP_TCH_DIFF_7TEV_TBAR_RAP_NORM

Plots for ATLAS_SINGLETOP_TCH_DIFF_7TEV_T_RAP_NORM

Plots for ATLAS_SINGLETOP_TCH_DIFF_8TEV_TBAR_RAP_NORM

Plots for ATLAS_SINGLETOP_TCH_DIFF_8TEV_T_RAP_NORM

Plots for ATLAS_SINGLETOP_TCH_R_13TEV

Plots for ATLAS_SINGLETOP_TCH_R_7TEV

Plots for ATLAS_TOPDIFF_DILEPT_8TEV_TTRAPNORM

Plots for ATLAS_TTBARTOT_13TEV_FULLLUMI

Plots for ATLAS_TTB_DIFF_8TEV_LJ_TRAPNORM

Plots for ATLAS_TTB_DIFF_8TEV_LJ_TTRAPNORM

Plots for ATLAS_WM_JET_8TEV_PT

Plots for ATLAS_WP_JET_8TEV_PT

Plots for ATLAS_WZ_TOT_13TEV

Plots for BCDMSD_dw_ite

Plots for BCDMSP_dwsh

Plots for CDFZRAP_NEW

Plots for CHORUSNBPb_dw_ite

Plots for CHORUSNUPb_dw_ite

Plots for CMSTTBARTOT13TEV

Plots for CMSTTBARTOT5TEV

Plots for CMSTTBARTOT7TEV

Plots for CMSTTBARTOT8TEV

Plots for CMS_1JET_8TEV

Plots for CMS_2JET_7TEV

Plots for CMS_SINGLETOP_TCH_R_13TEV

Plots for CMS_SINGLETOP_TCH_R_8TEV

Plots for CMS_SINGLETOP_TCH_TOT_7TEV

Plots for CMS_TTBAR_2D_DIFF_MTT_TRAP_NORM

Plots for CMS_TTB_DIFF_13TEV_2016_2L_TRAP

Plots for CMS_TTB_DIFF_13TEV_2016_LJ_TRAP

Plots for D0ZRAP_40

Plots for DYE605_dw_ite

Plots for DYE886R_dw_ite

Plots for DYE906R_dw_ite

Plots for HERACOMB_SIGMARED_B

Plots for HERACOMB_SIGMARED_C

Plots for LHCBZEE2FB_40

Plots for LHCB_Z_13TEV_DIELECTRON

Plots for LHCB_Z_13TEV_DIMUON

Plots for NMCPD_dw_ite

Plots for NTVNBDMNFe_dw_ite

Plots for NTVNUDMNFe_dw_ite

Plots for SLACD_dw_ite

Plots for SLACP_dwsh

Positivity

Dataset differences and cuts

The following datasets are included in both NNPDF4.0 (pert. charm) and NNPDF4.0 (fitted charm):

ATLAS W, Z 7 TeV 2010
NuTeV σ_c^ν
CMS W asymmetry 4.7 fb
HERA I+II inclusive CC e⁺p
ATLAS tt̄ y_t
CHORUS σ_CC^ν
ATLAS W, Z inclusive 13 TeV
CMS tt̄ rapidity y_tt̄
CMS single top R_t 13 TeV
CMS W rapidity 8 TeV
CMS tt̄ absolute |y_t|
LHCb Z 940 pb
CMS single top σ_t + σ_t̄ 7 TeV
CMS Drell-Yan 2D 7 TeV 2011
ATLAS single antitop y (normalised)
SLAC d
ATLAS single top R_t 13 TeV
ATLAS $\sigma_{tt}^{\rm tot}$ 13 TeV Run II full lumi
CDF Z rapidity (new)
HERA comb. $\sigma_{c\bar c}^{\rm red}$
ATLAS W, Z 7 TeV 2011 Forward selection
CMS tt̄ double differential (m_tt̄, y_t)
NuTeV σ_c^ν̄
DY E605 $\sigma^p_{\rm DY}$
CMS single top R_t 8 TeV
CHORUS σ_CC^ν̄
ATLAS dijets 7 TeV, R=0.6
HERA I+II inclusive CC e⁻p
D0 Z rapidity
HERA I+II inclusive NC e⁺p 575 GeV
CMS $\sigma_{tt}^{\rm tot}$ 13 TeV
HERA I+II inclusive NC e⁺p 920 GeV
ATLAS Z p_T 8 TeV (p_T^ll, y_ll)
CMS jets 8 TeV
LHCb W, Z → μ 7 TeV
SLAC p
HERA I+II inclusive NC e⁺p 820 GeV
CMS W asymmetry 840 pb
HERA comb. $\sigma_{b\bar b}^{\rm red}$
ATLAS single top y_t (normalised)
BCDMS d
ATLAS tt̄ y_tt̄
ATLAS $\sigma_{tt}^{\rm tot}$
ATLAS single top y_t (normalised)
NMC d/p
ATLAS DY 2D 8 TeV low mass
LHCb W, Z → μ 8 TeV
ATLAS single antitop y (normalised)
BCDMS p
CMS $\sigma_{tt}^{\rm tot}$ 8 TeV
DY E886 $\sigma^p_{\rm DY}$
LHCb Z → ee
CMS $\sigma_{tt}^{\rm tot}$ 5 TeV
CMS tt̄ absolute y_t
HERA I+II inclusive NC e⁻p
ATLAS low-mass DY 2011
CMS $\sigma_{tt}^{\rm tot}$ 7 TeV
ATLAS HM DY 7 TeV
ATLAS W⁺+jet 8 TeV
LHCb Z → ee 2 fb
HERA I+II inclusive NC e⁺p 460 GeV
ATLAS tt̄ normalised |y_t|
ATLAS W, Z 7 TeV 2011 Central selection
ATLAS $\sigma_{tt}^{\rm tot}$ 8 TeV
CMS dijets 7 TeV
ATLAS direct photon production 13 TeV
ATLAS single top R_t 7 TeV
ATLAS jets 8 TeV, R=0.6
NMC p
CMS Z p_T 8 TeV (p_T^ll, y_ll)
ATLAS Z p_T 8 TeV (p_T^ll, M_ll)
ATLAS W⁻+jet 8 TeV
DYE 866 $\sigma^d_{\rm DY}/\sigma^p_{\rm DY}$
LHCb Z → μμ
D0 W → μν asymmetry
DYE 906 $\sigma^d_{\rm DY}/\sigma^p_{\rm DY}$
ATLAS DY 2D 8 TeV high mass

The following datasets are both included but have different kinematical cuts:

HERA comb. $\sigma_{c\bar c}^{\rm red}$:
- NNPDF4.0 (pert. charm) includes 47 out of 52 points.
- NNPDF4.0 (fitted charm) includes 37 out of 52 points.

Code versions

	NNPDF4.0 (pert. charm)	NNPDF4.0 (fitted charm)
module
numpy	1.19.2	1.19.2
tensorflow	2.3.0, mkl=False	2.3.0, mkl=False
nnpdf	4.0.3.0+g1229126	4.0.3.0+g1229126
validphys	4.0.3.0+g1229126	4.0.3.0+g1229126
keras	2.4.0	2.4.0

Summary

Theory covariance summary

Dataset properties

Distances

Q = 1.65 GeV

Flavour basis, Log

Flavour basis, Linear

Evolution basis, Log

Evolution basis, Linear

Q = 100 GeV

Flavour basis, Log

Flavour basis, Linear

Evolution basis, Log

Evolution basis, Linear

PDF arc-lengths

Sum rules

NNPDF4.0 (pert. charm)

Known sum rules

Unknown sum rules

NNPDF4.0 (fitted charm)

Known sum rules

Unknown sum rules

PDF plots

Luminosities

Effective exponents

Training lengths

Training-validation

χ2 by nnpdf31_process

χ2 by experiment

χ2 by dataset

Plot

Table

ϕ by nnpdf31_process

ϕ by experiment

Dataset plots

Positivity

Dataset differences and cuts

Code versions

χ² by nnpdf31_process

χ² by experiment

χ² by dataset