Generator / tune

Details for Pythia 8.308 CP1-CR1 vs. 8.313

pp/ppbar → Z (Drell-Yan)


Observable Reference Energy χ2+5% (8.308) Δ χ2+5% (8.313)
Underlying event
<Nch> vs pTZ
ATLAS_2019_I1736531 13000 0.59 +5.3 5.9
Underlying event
<pT>
ATLAS_2019_I1736531 13000 2.8* +1.7 4.5*
<pT> vs Nch
CDF_2010_I849042 1960 n/a - 10
Transverse
<pT> vs pTlead
CDF_2010_I849042 1960 6.6 -0.20 6.4
Toward
<pT> vs pTlead
CDF_2010_I849042 1960 3.9 +0.60 4.5
Underlying event
<pT> vs pTZ
ATLAS_2019_I1736531 13000 1.6 +2.1 3.7
<pT>Z vs Nch
CDF_2010_I849042 1960 n/a - 2.4
Underlying event
Σ(pT) vs pTZ
ATLAS_2019_I1736531 13000 1.5 -0.52 0.98
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 3.1* +4.0 7.1*
Jet Substructure
Splitting scale d0
ATLAS_2017_I1589844 8000 13 0 13
Jet Substructure
Splitting scale d1
ATLAS_2017_I1589844 8000 14 +1.0 15
Jet Substructure
Splitting scale d2
ATLAS_2017_I1589844 8000 10 +2.0 12
Jet Substructure
Splitting scale d3
ATLAS_2017_I1589844 8000 9.0 +2.0 11
Jet Substructure
Splitting scale d4
ATLAS_2017_I1589844 8000 8.6 +2.4 11
Jet Substructure
Splitting scale d5
ATLAS_2017_I1589844 8000 8.1 +2.9 11
Jet Substructure
Splitting scale d6
ATLAS_2017_I1589844 8000 7.6 +2.4 10
Jet Substructure
Splitting scale d7
ATLAS_2017_I1589844 8000 7.3 +2.7 10
Dilepton
Δη
ATLAS_2016_I1467454 8000 3.7 +0.20 3.9
Dilepton
m
ATLAS_2019_I1725190 13000 n/a - n/a
Dilepton
φ*η
CMS_2019_I1753680 13000 15 -4.0 11*
CMS_2022_I2079374 13000 9.5 +0.100 9.6
D0_2010_I871787 1960 0.87* +0.23 1.1*
LHCB_2012_I1208102 7000 7.4 -0.70 6.7
LHCB_2021_I1990313 13000 13* -3.2 9.8*
Dilepton
φ*η ratio
CMS_2022_I2079374 13000 0.83* -0.12 0.71*
ll.phiStar_norm
ATLAS_2019_I1768911 13000 0.86 +0.24 1.1
CMS_2019_I1753680 13000 1.5 +0.20 1.7
Dilepton
pT
LHCB_2021_I1990313 13000 13 -1.0 12*
Dilepton
y
LHCB_2021_I1990313 13000 21 -5.0 16
Transverse
Max(pT) vs pTlead
CDF_2010_I849042 1960 16 -7.0 9.0
Toward
Max(pT) vs pTlead
CDF_2010_I849042 1960 6.0 -1.1 4.9
Underlying event
Nch
ATLAS_2019_I1736531 13000 2.1* +3.1 5.2*
Away
<Nch> vs pTlead
CDF_2010_I849042 1960 1.6 +2.3 3.9
Transverse
<Nch> vs pTlead
CDF_2010_I849042 1960 0.52 +5.1 5.6
nch-vs-pt-trnsDif
CDF_2010_I849042 1960 1.1 +1.6 2.7
TransMAX
<Nch> vs pTlead
CDF_2010_I849042 1960 0.71 +4.4 5.1
TransMIN
<Nch> vs pTlead
CDF_2010_I849042 1960 0.64 +6.8 7.4
Toward
<Nch> vs pTlead
CDF_2010_I849042 1960 1.1 +4.6 5.7
Jet Multiplicities
Jet multiplicity
CMS_EWK_10_012 7000 9.1 +2.9 12
Jet Multiplicities
Ratios of jet multiplicity
CMS_EWK_10_012 7000 3.7 +0.70 4.4
Underlying event
Scalar Σ(pT)
ATLAS_2019_I1736531 13000 2.3* +1.1 3.4*
Away
Σ(pT) vs pTlead
CDF_2010_I849042 1960 1.7 -0.40 1.3
Transverse
Σ(pT) vs pTlead
CDF_2010_I849042 1960 2.9 -0.60 2.3
sumpt-vs-pt-trnsDif
CDF_2010_I849042 1960 5.2 -3.2 2.0
TransMAX
Σ(pT) vs pTlead
CDF_2010_I849042 1960 3.8 -1.8 2.0
TransMIN
Σ(pT) vs pTlead
CDF_2010_I849042 1960 3.4 +0.50 3.9
Toward
Σ(pT) vs pTlead
CDF_2010_I849042 1960 2.8 +0.20 3.0
z.m
PHENIX_2019_I1672015 200 160,000,000 -10,000,000 150,000,000
pT Z
CDF_2000_I505738 1800 19 -11 8.5
CDF_2012_I1124333 1960 21 -14 7.4
CMS_2019_I1753680 13000 9.0* -4.0 5.0*
CMS_2022_I2079374 13000 8.9 +0.40 9.3
D0_2010_I856972 1960 9.6 -7.8 1.8
PHENIX_2019_I1672015 200 79,000,000 +6,900,000 86,000,000
z.pt._z.pt
CMS_2022_I2079374 13000 1.0 -0.26 0.74*
z.pt_norm
ATLAS_2011_I917931 7000 0.83 -0.27 0.56
ATLAS_2019_I1768911 13000 n/a - n/a
CMS_2019_I1753680 13000 0.95* +0.25 1.2*
D0_2010_I856972 1960 0.56 +0.20 0.76
y Z
ATLAS_2016_I1467454 8000 4.1 +0.10 4.2
CMS_2019_I1753680 13000 21 -5.0 16
LHCB_2012_I1208102 7000 12 -1.0 11
z.y_norm
CMS_2019_I1753680 13000 0.40 -0.20 0.20

* several "n/a" histograms were excluded from the calculation



n/a indicates that the χ2 value is unavailable, typically due to mismatched binning between theoretical and MC histograms or other issues.



The page data is based on 946 histograms.