Generator / tune

Details for Pythia 8.306 ppthermNoScat vs. 8.307

pp/ppbar → Z (Drell-Yan)


Observable Reference Energy χ2+5% (8.306) Δ χ2+5% (8.307)
Underlying event
<Nch> vs pTZ
ATLAS_2019_I1736531 13000 5.7* +0.40 6.1
Underlying event
<pT>
ATLAS_2019_I1736531 13000 3.3* +2.0 5.3*
<pT> vs Nch
CDF_2010_I849042 1960 n/a - 2.2*
Transverse
<pT> vs pTlead
CDF_2010_I849042 1960 n/a - 2.8
Toward
<pT> vs pTlead
CDF_2010_I849042 1960 n/a - 6.2
Underlying event
<pT> vs pTZ
ATLAS_2019_I1736531 13000 3.5* +0.20 3.7
<pT>Z vs Nch
CDF_2010_I849042 1960 n/a - 3.1
Underlying event
Σ(pT) vs pTZ
ATLAS_2019_I1736531 13000 11 +2.0 13
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 2.0* +1.3 3.3*
Jet Substructure
Splitting scale d0
ATLAS_2017_I1589844 8000 23 +2.0 25
Jet Substructure
Splitting scale d1
ATLAS_2017_I1589844 8000 31 +2.0 33
Jet Substructure
Splitting scale d2
ATLAS_2017_I1589844 8000 34* +4.0 38
Jet Substructure
Splitting scale d3
ATLAS_2017_I1589844 8000 38 0 38*
Jet Substructure
Splitting scale d4
ATLAS_2017_I1589844 8000 38 +1.0 39
Jet Substructure
Splitting scale d5
ATLAS_2017_I1589844 8000 38 +1.0 39
Jet Substructure
Splitting scale d6
ATLAS_2017_I1589844 8000 37* +2.0 39*
Jet Substructure
Splitting scale d7
ATLAS_2017_I1589844 8000 37* +2.0 39
Dilepton
Δη
ATLAS_2016_I1467454 8000 18 +1.0 19
Dilepton
m
ATLAS_2019_I1725190 13000 n/a - n/a
Dilepton
φ*η
CMS_2019_I1753680 13000 25* +7.0 32
CMS_2022_I2079374 13000 31 -2.0 29
D0_2010_I871787 1960 1.7* 0 1.7*
LHCB_2012_I1208102 7000 9.8 -1.7 8.1
LHCB_2021_I1990313 13000 9.3* +4.7 14*
Dilepton
φ*η ratio
CMS_2022_I2079374 13000 0.74* +0.46 1.2*
ll.phiStar_norm
ATLAS_2019_I1768911 13000 0.94 -0.21 0.73
CMS_2019_I1753680 13000 1.2 -0.20 1.0
Dilepton
pT
LHCB_2021_I1990313 13000 8.8 +6.2 15
Dilepton
y
LHCB_2021_I1990313 13000 14 +11 25
Transverse
Max(pT) vs pTlead
CDF_2010_I849042 1960 n/a - 3.8
Toward
Max(pT) vs pTlead
CDF_2010_I849042 1960 n/a - 21
Underlying event
Nch
ATLAS_2019_I1736531 13000 2.5* +1.5 4.0*
Away
<Nch> vs pTlead
CDF_2010_I849042 1960 1.2 -0.24 0.96
Transverse
<Nch> vs pTlead
CDF_2010_I849042 1960 3.9 -2.0 1.9
nch-vs-pt-trnsDif
CDF_2010_I849042 1960 1.6 -0.50 1.1
TransMAX
<Nch> vs pTlead
CDF_2010_I849042 1960 2.4 -1.2 1.2
TransMIN
<Nch> vs pTlead
CDF_2010_I849042 1960 n/a - 3.3
Toward
<Nch> vs pTlead
CDF_2010_I849042 1960 1.2 +2.7 3.9
Jet Multiplicities
Jet multiplicity
CMS_EWK_10_012 7000 7.4 +4.6 12
Jet Multiplicities
Ratios of jet multiplicity
CMS_EWK_10_012 7000 2.9 +1.5 4.4
Underlying event
Scalar Σ(pT)
ATLAS_2019_I1736531 13000 4.9* +2.4 7.3*
Away
Σ(pT) vs pTlead
CDF_2010_I849042 1960 2.0 0 2.0
Transverse
Σ(pT) vs pTlead
CDF_2010_I849042 1960 18 -14 4.5
sumpt-vs-pt-trnsDif
CDF_2010_I849042 1960 9.5 -5.3 4.2
TransMAX
Σ(pT) vs pTlead
CDF_2010_I849042 1960 13 -8.8 4.2
TransMIN
Σ(pT) vs pTlead
CDF_2010_I849042 1960 n/a - 18
Toward
Σ(pT) vs pTlead
CDF_2010_I849042 1960 5.0 +6.0 11
z.m
PHENIX_2019_I1672015 200 250,000,000 -49,000,000 200,000,000
pT Z
CDF_2000_I505738 1800 10 +1.0 11
CDF_2012_I1124333 1960 11 -1.0 10
CMS_2019_I1753680 13000 n/a - 18*
CMS_2022_I2079374 13000 24 0 24
D0_2010_I856972 1960 3.0 +0.50 3.5
PHENIX_2019_I1672015 200 110,000,000 -20,000,000 88,000,000
z.pt._z.pt
CMS_2022_I2079374 13000 0.78* +0.32 1.1*
z.pt_norm
ATLAS_2011_I917931 7000 0.76 +0.040 0.80
ATLAS_2019_I1768911 13000 n/a - n/a
CMS_2019_I1753680 13000 n/a - 0.81*
D0_2010_I856972 1960 1.8 -0.70 1.1
y Z
ATLAS_2016_I1467454 8000 19 0 19
CMS_2019_I1753680 13000 44 +6.0 50
LHCB_2012_I1208102 7000 13 -1.0 12
z.y_norm
CMS_2019_I1753680 13000 0.56 +0.090 0.65

* 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.