Comparison between 210127-nnfit-001 and 210713-n3fit-001

Summary

We are comparing:

NNPDF3.1-like (210127-nnfit-001): NNPDF3.1-like data set with NNPDF3.1 methodology
NNPDF4.0 (210713-n3fit-001): NNPDF4.0 NNLO global baseline fit, alphas=0.118

	NNPDF3.1-like	NNPDF4.0
χ²	1.18765	1.16173
< E_trn>	2.270±0.092	2.263±0.065
< E_val>	2.405±0.091	2.36±0.10
< TL>	20100±9400	13500±2300
< χ²>	1.291±0.047	1.188±0.016
ϕ	0.3222±0.0072	0.1608±0.0050

Theory covariance summary

	NNPDF3.1-like	NNPDF4.0
sampling	False	False
fitting	False	False
validphys statistical estimators	False	False

Dataset properties

	Training fraction	Weight	C-factors	Other fields
Dataset
NMCPD	0.5	1	-	custom_group: unset
NMC	0.5	1	-	custom_group: unset
SLACP	0.5	1	-	custom_group: unset
SLACD	0.5	1	-	custom_group: unset
BCDMSP	0.5	1	-	custom_group: unset
BCDMSD	0.5	1	-	custom_group: unset
CHORUSNUPb	0.5	1	-	custom_group: unset
CHORUSNBPb	0.5	1	-	custom_group: unset
NTVNUDMNFe	0.5	1	MAS	custom_group: unset
NTVNBDMNFe	0.5	1	MAS	custom_group: unset
HERACOMBNCEM	0.5	1	-	custom_group: unset
HERACOMBNCEP460	0.5	1	-	custom_group: unset
HERACOMBNCEP575	0.5	1	-	custom_group: unset
HERACOMBNCEP820	0.5	1	-	custom_group: unset
HERACOMBNCEP920	0.5	1	-	custom_group: unset
HERACOMBCCEM	0.5	1	-	custom_group: unset
HERACOMBCCEP	0.5	1	-	custom_group: unset
HERACOMB_SIGMARED_C	0.5	1	-	custom_group: unset
HERACOMB_SIGMARED_B	0.5	1	-	custom_group: unset
DYE886R	1	1	-	custom_group: unset
DYE886P	0.5	1	QCD	custom_group: unset
DYE605	0.5	1	QCD	custom_group: unset
CDFZRAP	1	1	QCD	custom_group: unset
D0ZRAP	1	1	QCD	custom_group: unset
D0WEASY	1	1	QCD	custom_group: unset
D0WMASY	1	1	QCD	custom_group: unset
ATLASWZRAP36PB	1	1	QCD	custom_group: unset
ATLASZHIGHMASS49FB	1	1	QCD	custom_group: unset
ATLASLOMASSDY11EXT	1	1	QCD	custom_group: unset
ATLASWZRAP11CC	0.5	1	QCD	custom_group: unset
ATLASZPT8TEVMDIST	0.5	1	QCD	sys: 10, custom_group: unset
ATLASZPT8TEVYDIST	0.5	1	QCD	sys: 10, custom_group: unset
ATLASTTBARTOT	1	1	QCD	custom_group: unset
ATLAS_TTB_DIFF_8TEV_LJ_TRAPNORM	1	1	QCD	custom_group: unset
ATLAS1JET11_NEW_SCALE	0.5	1	QCD	sys: DECORR, custom_group: unset
CMSWEASY840PB	1	1	QCD	custom_group: unset
CMSWMASY47FB	1	1	QCD	custom_group: unset
CMSDY2D11	0.5	1	QCD	custom_group: unset
CMSWMU8TEV	1	1	QCD	custom_group: unset
CMSZDIFF12	1	1	QCD, NRM	sys: 10, custom_group: unset
CMSJETS11_NEW_SCALE	0.5	1	QCD	custom_group: unset
CMSTTBARTOT	1	1	QCD	custom_group: unset
CMSTOPDIFF8TEVTTRAPNORM	1	1	QCD	custom_group: unset
LHCBZ940PB	1	1	QCD	custom_group: unset
LHCBZEE2FB	1	1	QCD	custom_group: unset
LHCBWZMU7TEV	1	1	NRM, QCD	custom_group: unset
LHCBWZMU8TEV	1	1	NRM, 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

NNPDF3.1-like

Known sum rules

	mean	std	min	max
momentum	1.000	8.663E-4	0.9974	1.006
uvalence	1.999	2.841E-3	1.990	2.020
dvalence	0.9993	2.815E-3	0.9903	1.020
svalence	5.640E-4	3.040E-3	-9.474E-3	2.294E-2

Unknown sum rules

	mean	std
u momentum fraction	0.3251	0.0052
ubar momentum fraction	0.0267	0.0024
d momentum fraction	0.1563	0.0048
dbar momentum fraction	0.0380	0.0028
s momentum fraction	0.0254	0.0042
sbar momentum fraction	0.0203	0.0033
cp momentum fraction	0.0107	0.0036
g momentum fraction	0.3977	0.0059
T3	-4	43
T8	4	28

NNPDF4.0

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

		NNPDF3.1-like		NNPDF4.0
		ndata	χ²/ndata	ndata	χ²/ndata
NMC	Total	325	1.350	204	1.559
	NMC	204	1.570	204	1.559
	NMCPD	121	0.9805	NaN	NaN
SLAC	Total	67	0.7808	NaN	NaN
	SLACD	34	0.7297	NaN	NaN
	SLACP	33	0.8434	NaN	NaN
BCDMS	Total	581	1.206	NaN	NaN
	BCDMSD	248	1.086	NaN	NaN
	BCDMSP	333	1.289	NaN	NaN
CHORUS	Total	832	1.137	NaN	NaN
	CHORUSNBPb	416	0.9507	NaN	NaN
	CHORUSNUPb	416	1.275	NaN	NaN
NTVDMN	Total	76	0.7352	NaN	NaN
	NTVNBDMNFe	37	0.8466	NaN	NaN
	NTVNUDMNFe	39	0.6295	NaN	NaN
HERACOMB	Total	1208	1.188	1208	1.203
	HERACOMBCCEM	42	1.156	42	1.248
	HERACOMBCCEP	39	1.218	39	1.235
	HERACOMBNCEM	159	1.403	159	1.402
	HERACOMBNCEP460	204	1.069	204	1.076
	HERACOMBNCEP575	254	0.9020	254	0.9034
	HERACOMBNCEP820	70	1.115	70	1.088
	HERACOMBNCEP920	377	1.292	377	1.294
	HERACOMB_SIGMARED_B	26	1.469	26	1.428
	HERACOMB_SIGMARED_C	37	2.067	37	2.027
DYE886	Total	104	1.147	89	1.597
	DYE886P	89	1.252	89	1.597
	DYE886R	15	0.5254	NaN	NaN
DYE605	Total	85	1.058	NaN	NaN
DYE605	DYE605	85	1.058	NaN	NaN
CDF	Total	29	1.366	28	1.275
	CDFZRAP	29	1.366	NaN	NaN
	CDFZRAP_NEW	NaN	NaN	28	1.275
D0	Total	48	1.359	37	0.9516
	D0WEASY	11	3.170	NaN	NaN
	D0WMASY	9	1.524	9	1.907
	D0ZRAP	28	0.5937	NaN	NaN
	D0ZRAP_40	NaN	NaN	28	0.6445
ATLAS	Total	326	1.268	679	1.243
	ATLAS1JET11_NEW_SCALE	140	1.335	NaN	NaN
	ATLASDY2D8TEV	NaN	NaN	48	1.112
	ATLASLOMASSDY11EXT	6	0.8998	6	0.8794
	ATLASPHT15_SF	NaN	NaN	53	0.7699
	ATLASTTBARTOT	3	0.7411	NaN	NaN
	ATLASTTBARTOT7TEV	NaN	NaN	1	4.590
	ATLASTTBARTOT8TEV	NaN	NaN	1	2.449E-2
	ATLASWZRAP11CC	46	1.984	46	1.885
	ATLASWZRAP11CF	NaN	NaN	15	1.037
	ATLASWZRAP36PB	30	0.9054	30	0.9839
	ATLASZHIGHMASS49FB	5	1.801	5	1.683
	ATLASZPT8TEVMDIST	44	0.9432	44	0.9054
	ATLASZPT8TEVYDIST	48	0.9348	48	0.8979
	ATLAS_1JET_8TEV_R06_DEC	NaN	NaN	171	0.6968
	ATLAS_2JET_7TEV_R06	NaN	NaN	90	2.145
	ATLAS_DY_2D_8TEV_LOWMASS	NaN	NaN	60	1.218
	ATLAS_SINGLETOP_TCH_DIFF_7TEV_TBAR_RAP_NORM	NaN	NaN	3	6.194E-2
	ATLAS_SINGLETOP_TCH_DIFF_7TEV_T_RAP_NORM	NaN	NaN	3	0.9569
	ATLAS_SINGLETOP_TCH_DIFF_8TEV_TBAR_RAP_NORM	NaN	NaN	3	0.1887
	ATLAS_SINGLETOP_TCH_DIFF_8TEV_T_RAP_NORM	NaN	NaN	3	0.2491
	ATLAS_SINGLETOP_TCH_R_13TEV	NaN	NaN	1	6.048E-2
	ATLAS_SINGLETOP_TCH_R_7TEV	NaN	NaN	1	0.4896
	ATLAS_TOPDIFF_DILEPT_8TEV_TTRAPNORM	NaN	NaN	5	1.611
	ATLAS_TTBARTOT_13TEV_FULLLUMI	NaN	NaN	1	0.5058
	ATLAS_TTB_DIFF_8TEV_LJ_TRAPNORM	4	2.250	4	3.216
	ATLAS_TTB_DIFF_8TEV_LJ_TTRAPNORM	NaN	NaN	4	3.772
	ATLAS_WM_JET_8TEV_PT	NaN	NaN	15	1.488
	ATLAS_WP_JET_8TEV_PT	NaN	NaN	15	0.7909
	ATLAS_WZ_TOT_13TEV	NaN	NaN	3	0.8076
CMS	Total	327	1.140	474	1.312
	CMSDY2D11	110	1.320	110	1.362
	CMSJETS11_NEW_SCALE	133	0.9605	NaN	NaN
	CMSTOPDIFF8TEVTTRAPNORM	9	1.152	9	1.232
	CMSTTBARTOT	3	0.1932	NaN	NaN
	CMSTTBARTOT13TEV	NaN	NaN	1	5.913E-2
	CMSTTBARTOT5TEV	NaN	NaN	1	0.5447
	CMSTTBARTOT7TEV	NaN	NaN	1	1.060
	CMSTTBARTOT8TEV	NaN	NaN	1	0.2617
	CMSWEASY840PB	11	0.8293	11	0.8427
	CMSWMASY47FB	11	1.775	11	1.704
	CMSWMU8TEV	22	1.000	22	1.376
	CMSZDIFF12	28	1.339	28	1.405
	CMS_1JET_8TEV	NaN	NaN	185	1.190
	CMS_2JET_7TEV	NaN	NaN	54	1.806
	CMS_SINGLETOP_TCH_R_13TEV	NaN	NaN	1	0.3544
	CMS_SINGLETOP_TCH_R_8TEV	NaN	NaN	1	0.1721
	CMS_SINGLETOP_TCH_TOT_7TEV	NaN	NaN	1	0.7289
	CMS_TTBAR_2D_DIFF_MTT_TRAP_NORM	NaN	NaN	16	1.032
	CMS_TTB_DIFF_13TEV_2016_2L_TRAP	NaN	NaN	10	0.5160
	CMS_TTB_DIFF_13TEV_2016_LJ_TRAP	NaN	NaN	11	0.6293
LHCb	Total	85	1.558	116	1.551
	LHCBWZMU7TEV	29	2.003	29	1.965
	LHCBWZMU8TEV	30	1.406	30	1.423
	LHCBZ940PB	9	1.481	9	1.650
	LHCBZEE2FB	17	1.107	NaN	NaN
	LHCBZEE2FB_40	NaN	NaN	17	1.326
	LHCB_Z_13TEV_DIELECTRON	NaN	NaN	15	1.721
	LHCB_Z_13TEV_DIMUON	NaN	NaN	16	0.9896
DEUTERON	Total	NaN	NaN	790	1.161
	BCDMSD_dw_ite	NaN	NaN	248	1.013
	BCDMSP_dwsh	NaN	NaN	333	1.410
	DYE886R_dw_ite	NaN	NaN	15	0.4947
	DYE906R_dw_ite	NaN	NaN	6	0.9338
	NMCPD_dw_ite	NaN	NaN	121	0.8699
	SLACD_dw_ite	NaN	NaN	34	0.6287
	SLACP_dwsh	NaN	NaN	33	0.9476
NUCLEAR	Total	NaN	NaN	993	0.8225
	CHORUSNBPb_dw_ite	NaN	NaN	416	0.8683
	CHORUSNUPb_dw_ite	NaN	NaN	416	0.9571
	DYE605_dw_ite	NaN	NaN	85	0.4580
	NTVNBDMNFe_dw_ite	NaN	NaN	37	0.5644
	NTVNUDMNFe_dw_ite	NaN	NaN	39	0.3497
Total	Total	4093	1.188	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 ATLASWZRAP11CC

Plots for ATLAS_TTB_DIFF_8TEV_LJ_TRAPNORM

Plots for HERACOMB_SIGMARED_B

Plots for HERACOMB_SIGMARED_C

Positivity

Dataset differences and cuts

The following datasets are included in both NNPDF3.1-like and NNPDF4.0:

HERA I+II inclusive NC e⁺p 820 GeV
HERA I+II inclusive NC e⁺p 460 GeV
ATLAS W, Z 7 TeV 2011 Central selection
HERA I+II inclusive NC e⁺p 575 GeV
CMS Z p_T 8 TeV (p_T^ll, y_ll)
LHCb W, Z → μ 8 TeV
ATLAS Z p_T 8 TeV (p_T^ll, y_ll)
HERA comb. $\sigma_{c\bar c}^{\rm red}$
HERA I+II inclusive NC e⁺p 920 GeV
ATLAS Z p_T 8 TeV (p_T^ll, M_ll)
HERA comb. $\sigma_{b\bar b}^{\rm red}$
D0 W → μν asymmetry
ATLAS tt̄ y_t
CMS W asymmetry 4.7 fb
CMS W rapidity 8 TeV
NMC p
CMS tt̄ rapidity y_tt̄
ATLAS W, Z 7 TeV 2010
ATLAS low-mass DY 2011
LHCb Z 940 pb
HERA I+II inclusive CC e⁺p
LHCb W, Z → μ 7 TeV
HERA I+II inclusive NC e⁻p
ATLAS HM DY 7 TeV
HERA I+II inclusive CC e⁻p
DY E886 $\sigma^p_{\rm DY}$
CMS Drell-Yan 2D 7 TeV 2011
CMS W asymmetry 840 pb

The following datasets are included in NNPDF3.1-like but not in NNPDF4.0:

NuTeV σ_c^ν̄
BCDMS d
LHCb Z → ee 2 fb
D0 Z rapidity
SLAC d
CMS jets 7 TeV 2011
NuTeV σ_c^ν
CMS $\sigma_{tt}^{\rm tot}$
ATLAS $\sigma_{tt}^{\rm tot}$
CDF Z rapidity
NMC d/p
SLAC p
CHORUS σ_CC^ν
DY E605 $\sigma^p_{\rm DY}$
D0 W → eν asymmetry
ATLAS jets 2011 7 TeV
CHORUS σ_CC^ν̄
BCDMS p
DYE 866 $\sigma^d_{\rm DY}/\sigma^p_{\rm DY}$

The following datasets are included in NNPDF4.0 but not in NNPDF3.1-like:

CMS tt̄ absolute y_t
DYE 866 $\sigma^d_{\rm DY}/\sigma^p_{\rm DY}$
ATLAS jets 8 TeV, R=0.6
ATLAS single top R_t 7 TeV
ATLAS W⁻+jet 8 TeV
ATLAS $\sigma_{tt}^{\rm tot}$ 13 TeV Run II full lumi
ATLAS tt̄ y_tt̄
CMS single top R_t 8 TeV
CMS dijets 7 TeV
ATLAS W, Z 7 TeV 2011 Forward selection
ATLAS $\sigma_{tt}^{\rm tot}$
CMS $\sigma_{tt}^{\rm tot}$ 5 TeV
NuTeV σ_c^ν̄
ATLAS tt̄ normalised |y_t|
CDF Z rapidity (new)
CHORUS σ_CC^ν̄
ATLAS W, Z inclusive 13 TeV
ATLAS single top y_t (normalised)
ATLAS dijets 7 TeV, R=0.6
BCDMS d
CMS $\sigma_{tt}^{\rm tot}$ 8 TeV
ATLAS single top y_t (normalised)
DYE 906 $\sigma^d_{\rm DY}/\sigma^p_{\rm DY}$
CHORUS σ_CC^ν
ATLAS $\sigma_{tt}^{\rm tot}$ 8 TeV
LHCb Z → μμ
DY E605 $\sigma^p_{\rm DY}$
ATLAS single antitop y (normalised)
ATLAS direct photon production 13 TeV
ATLAS single top R_t 13 TeV
CMS tt̄ absolute |y_t|
NuTeV σ_c^ν
SLAC d
SLAC p
ATLAS W⁺+jet 8 TeV
CMS tt̄ double differential (m_tt̄, y_t)
CMS single top R_t 13 TeV
CMS $\sigma_{tt}^{\rm tot}$ 13 TeV
CMS $\sigma_{tt}^{\rm tot}$ 7 TeV
ATLAS single antitop y (normalised)
D0 Z rapidity
BCDMS p
CMS jets 8 TeV
ATLAS DY 2D 8 TeV low mass
LHCb Z → ee
ATLAS DY 2D 8 TeV high mass
LHCb Z → ee 2 fb
CMS single top σ_t + σ_t̄ 7 TeV
NMC d/p

Code versions

	NNPDF3.1-like	NNPDF4.0
module
numpy	unavailable	1.19.2
nnpdf	unavailable	4.0.3.0+g1229126
keras	unavailable	2.4.0
validphys	unavailable	4.0.3.0+g1229126
tensorflow	unavailable	2.3.0, mkl=False

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

NNPDF3.1-like

Known sum rules

Unknown sum rules

NNPDF4.0

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