Generator / tune

Details for Pythia 8.308 CP5 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 1.3* -
Underlying event
 <pT>
 ATLAS_2019_I1736531 13000 4.0* -
<pT> vs Nch
 CDF_2010_I849042 1960 n/a -
Transverse
 <pT> vs pTlead
 CDF_2010_I849042 1960 8.6 -
Toward
 <pT> vs pTlead
 CDF_2010_I849042 1960 7.6 -
Underlying event
 <pT> vs pTZ
 ATLAS_2019_I1736531 13000 5.3* -
<pT>Z vs Nch
 CDF_2010_I849042 1960 n/a -
Underlying event
 Σ(pT) vs pTZ
 ATLAS_2019_I1736531 13000 5.5 -
Underlying event
 pT spectrum
 ATLAS_2019_I1736531 13000 2.7* -
Jet Substructure
 Splitting scale d0
 ATLAS_2017_I1589844 8000 13 -
Jet Substructure
 Splitting scale d1
 ATLAS_2017_I1589844 8000 18* -
Jet Substructure
 Splitting scale d2
 ATLAS_2017_I1589844 8000 17 -
Jet Substructure
 Splitting scale d3
 ATLAS_2017_I1589844 8000 13* -
Jet Substructure
 Splitting scale d4
 ATLAS_2017_I1589844 8000 9.5* -
Jet Substructure
 Splitting scale d5
 ATLAS_2017_I1589844 8000 8.7* -
Jet Substructure
 Splitting scale d6
 ATLAS_2017_I1589844 8000 7.6* -
Jet Substructure
 Splitting scale d7
 ATLAS_2017_I1589844 8000 6.3 -
Dilepton
 Δη
 ATLAS_2016_I1467454 8000 3.4 -
Dilepton
 m
 ATLAS_2019_I1725190 13000 n/a -
Dilepton
 φ*η
 CMS_2019_I1753680 13000 6.2 -
CMS_2022_I2079374 13000 6.1 -
D0_2010_I871787 1960 1.7* -
LHCB_2012_I1208102 7000 11 -
LHCB_2021_I1990313 13000 11* -
Dilepton
 φ*η ratio
 CMS_2022_I2079374 13000 1.4* -
ll.phiStar_norm
 ATLAS_2019_I1768911 13000 3.8 -
CMS_2019_I1753680 13000 8.9 -
Dilepton
 pT
 LHCB_2021_I1990313 13000 9.2 -
Dilepton
 y
 LHCB_2021_I1990313 13000 8.1 -
Transverse
 Max(pT) vs pTlead
 CDF_2010_I849042 1960 67 -
Toward
 Max(pT) vs pTlead
 CDF_2010_I849042 1960 24 -
Underlying event
 Nch
 ATLAS_2019_I1736531 13000 2.3* -
Away
 <Nch> vs pTlead
 CDF_2010_I849042 1960 2.0 -
Transverse
 <Nch> vs pTlead
 CDF_2010_I849042 1960 2.0 -
nch-vs-pt-trnsDif
 CDF_2010_I849042 1960 3.3 -
TransMAX
 <Nch> vs pTlead
 CDF_2010_I849042 1960 2.7 -
TransMIN
 <Nch> vs pTlead
 CDF_2010_I849042 1960 n/a -
Toward
 <Nch> vs pTlead
 CDF_2010_I849042 1960 1.6 -
Jet Multiplicities
 Jet multiplicity
 CMS_EWK_10_012 7000 55 -
Jet Multiplicities
 Ratios of jet multiplicity
 CMS_EWK_10_012 7000 13 -
Underlying event
 Scalar Σ(pT)
 ATLAS_2019_I1736531 13000 2.4* -
Away
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 1.0 -
Transverse
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 23 -
sumpt-vs-pt-trnsDif
 CDF_2010_I849042 1960 17 -
TransMAX
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 23 -
TransMIN
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 n/a -
Toward
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 15 -
z.m
 PHENIX_2019_I1672015 200 110,000,000 -
pT Z
 CDF_2000_I505738 1800 21 -
CDF_2012_I1124333 1960 28 -
CMS_2019_I1753680 13000 n/a -
CMS_2022_I2079374 13000 12 -
D0_2010_I856972 1960 15 -
PHENIX_2019_I1672015 200 52,000,000 -
z.pt._z.pt
 CMS_2022_I2079374 13000 0.81* -
z.pt_norm
 ATLAS_2011_I917931 7000 3.4 -
ATLAS_2019_I1768911 13000 n/a -
CMS_2019_I1753680 13000 n/a -
D0_2010_I856972 1960 2.3 -
y Z
 ATLAS_2016_I1467454 8000 3.9 -
CMS_2019_I1753680 13000 4.7 -
LHCB_2012_I1208102 7000 9.2 -
z.y_norm
 CMS_2019_I1753680 13000 0.48 -

* 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 473 histograms.