Generator / tune

Details for Pythia 8.307 pptherm vs. 8.308

pp/ppbar → Z (Drell-Yan)


Observable Reference Energy χ2+5% (8.307) Δ χ2+5% (8.308)
Underlying event
<Nch> vs pTZ
ATLAS_2019_I1736531 13000 6.3 +0.90 7.2*
Underlying event
<pT>
ATLAS_2019_I1736531 13000 5.2* -1.5 3.7*
<pT> vs Nch
CDF_2010_I849042 1960 2.1* - n/a
Transverse
<pT> vs pTlead
CDF_2010_I849042 1960 6.1 -2.6 3.5
Toward
<pT> vs pTlead
CDF_2010_I849042 1960 2.8 +6.4 9.2
Underlying event
<pT> vs pTZ
ATLAS_2019_I1736531 13000 4.7 -0.60 4.1*
<pT>Z vs Nch
CDF_2010_I849042 1960 n/a - n/a
Underlying event
Σ(pT) vs pTZ
ATLAS_2019_I1736531 13000 18 -1.0 17
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 3.0* -0.50 2.5*
Jet Substructure
Splitting scale d0
ATLAS_2017_I1589844 8000 25 0 25
Jet Substructure
Splitting scale d1
ATLAS_2017_I1589844 8000 34 0 34
Jet Substructure
Splitting scale d2
ATLAS_2017_I1589844 8000 39 -1.0 38
Jet Substructure
Splitting scale d3
ATLAS_2017_I1589844 8000 40 0 40
Jet Substructure
Splitting scale d4
ATLAS_2017_I1589844 8000 40 0 40
Jet Substructure
Splitting scale d5
ATLAS_2017_I1589844 8000 41 0 41
Jet Substructure
Splitting scale d6
ATLAS_2017_I1589844 8000 42 0 42
Jet Substructure
Splitting scale d7
ATLAS_2017_I1589844 8000 41 0 41
Dilepton
Δη
ATLAS_2016_I1467454 8000 18 0 18
Dilepton
m
ATLAS_2019_I1725190 13000 n/a - n/a
Dilepton
φ*η
CMS_2019_I1753680 13000 34 -5.0 29
CMS_2022_I2079374 13000 29 +2.0 31
D0_2010_I871787 1960 1.6* -0.10 1.5*
LHCB_2012_I1208102 7000 9.4 -0.80 8.6
LHCB_2021_I1990313 13000 14* -1.0 13*
Dilepton
φ*η ratio
CMS_2022_I2079374 13000 1.2* -0.48 0.72
ll.phiStar_norm
ATLAS_2019_I1768911 13000 1.2 -0.33 0.87
CMS_2019_I1753680 13000 1.7 -0.40 1.3
Dilepton
pT
LHCB_2021_I1990313 13000 15 -1.0 14
Dilepton
y
LHCB_2021_I1990313 13000 21 0 21
Transverse
Max(pT) vs pTlead
CDF_2010_I849042 1960 9.6 -1.4 8.2
Toward
Max(pT) vs pTlead
CDF_2010_I849042 1960 7.7 +12 20
Underlying event
Nch
ATLAS_2019_I1736531 13000 4.4* -0.20 4.2*
Away
<Nch> vs pTlead
CDF_2010_I849042 1960 0.84 +0.16 1.0
Transverse
<Nch> vs pTlead
CDF_2010_I849042 1960 4.0 -0.30 3.7
nch-vs-pt-trnsDif
CDF_2010_I849042 1960 2.2 -0.60 1.6
TransMAX
<Nch> vs pTlead
CDF_2010_I849042 1960 2.8 -0.40 2.4
TransMIN
<Nch> vs pTlead
CDF_2010_I849042 1960 4.9 -0.70 4.2
Toward
<Nch> vs pTlead
CDF_2010_I849042 1960 4.4 -1.1 3.3
Jet Multiplicities
Jet multiplicity
CMS_EWK_10_012 7000 16 +5.0 21
Jet Multiplicities
Ratios of jet multiplicity
CMS_EWK_10_012 7000 5.4 +0.90 6.3
Underlying event
Scalar Σ(pT)
ATLAS_2019_I1736531 13000 7.9* -1.2 6.7*
Away
Σ(pT) vs pTlead
CDF_2010_I849042 1960 2.6 +0.10 2.7
Transverse
Σ(pT) vs pTlead
CDF_2010_I849042 1960 11 -2.1 8.9
sumpt-vs-pt-trnsDif
CDF_2010_I849042 1960 7.9 +0.60 8.5
TransMAX
Σ(pT) vs pTlead
CDF_2010_I849042 1960 9.8 -1.0 8.8
TransMIN
Σ(pT) vs pTlead
CDF_2010_I849042 1960 14 -3.0 11
Toward
Σ(pT) vs pTlead
CDF_2010_I849042 1960 9.7 +3.3 13
z.m
PHENIX_2019_I1672015 200 230,000,000 -16,000,000 210,000,000
pT Z
CDF_2000_I505738 1800 11 0 11
CDF_2012_I1124333 1960 11 0 11
CMS_2019_I1753680 13000 22* -5.0 17*
CMS_2022_I2079374 13000 23 +2.0 25
D0_2010_I856972 1960 3.0 -0.10 2.9
PHENIX_2019_I1672015 200 89,000,000 +63,000,000 150,000,000
z.pt._z.pt
CMS_2022_I2079374 13000 0.87* +0.73 1.6*
z.pt_norm
ATLAS_2011_I917931 7000 0.62 -0.040 0.58
ATLAS_2019_I1768911 13000 n/a - n/a
CMS_2019_I1753680 13000 0.98* -0.35 0.63*
D0_2010_I856972 1960 1.6 +0.100 1.7
y Z
ATLAS_2016_I1467454 8000 18 +1.0 19
CMS_2019_I1753680 13000 52 -3.0 49
LHCB_2012_I1208102 7000 13 0 13
z.y_norm
CMS_2019_I1753680 13000 0.64 -0.010 0.63

* 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.