Generator / tune

Details for Pythia 8.315 tune-2m

pp/ppbar → Z (Drell-Yan)


Observable Reference Energy χ2+5%
Underlying event
 <Nch> vs pTZ
 ATLAS_2019_I1736531 13000 21
Underlying event
 <pT>
 ATLAS_2019_I1736531 13000 5.2*
<pT> vs Nch
 CDF_2010_I849042 1960 3.3
Transverse
 <pT> vs pTlead
 CDF_2010_I849042 1960 3.6
Toward
 <pT> vs pTlead
 CDF_2010_I849042 1960 2.6
Underlying event
 <pT> vs pTZ
 ATLAS_2019_I1736531 13000 2.6
<pT>Z vs Nch
 CDF_2010_I849042 1960 4.0
Underlying event
 Σ(pT) vs pTZ
 ATLAS_2019_I1736531 13000 29
Underlying event
 pT spectrum
 ATLAS_2019_I1736531 13000 5.0
Jet Substructure
 Splitting scale d0
 ATLAS_2017_I1589844 8000 14
Jet Substructure
 Splitting scale d1
 ATLAS_2017_I1589844 8000 18
Jet Substructure
 Splitting scale d2
 ATLAS_2017_I1589844 8000 18
Jet Substructure
 Splitting scale d3
 ATLAS_2017_I1589844 8000 18
Jet Substructure
 Splitting scale d4
 ATLAS_2017_I1589844 8000 19
Jet Substructure
 Splitting scale d5
 ATLAS_2017_I1589844 8000 20
Jet Substructure
 Splitting scale d6
 ATLAS_2017_I1589844 8000 20
Jet Substructure
 Splitting scale d7
 ATLAS_2017_I1589844 8000 22
Dilepton
 Δη
 ATLAS_2016_I1467454 8000 3.2
Dilepton
 m
 ATLAS_2019_I1725190 13000 n/a
Dilepton
 φ*η
 CMS_2019_I1753680 13000 12
CMS_2022_I2079374 13000 7.1
D0_2010_I871787 1960 2.2
LHCB_2012_I1208102 7000 5.5
LHCB_2021_I1990313 13000 9.6*
Dilepton
 φ*η ratio
 CMS_2022_I2079374 13000 0.43*
ll.phiStar_norm
 ATLAS_2019_I1768911 13000 3.4
CMS_2019_I1753680 13000 5.7
Dilepton
 pT
 LHCB_2021_I1990313 13000 13
Dilepton
 y
 LHCB_2021_I1990313 13000 13
Transverse
 Max(pT) vs pTlead
 CDF_2010_I849042 1960 6.8
Toward
 Max(pT) vs pTlead
 CDF_2010_I849042 1960 5.4
Underlying event
 Nch
 ATLAS_2019_I1736531 13000 17*
Away
 <Nch> vs pTlead
 CDF_2010_I849042 1960 0.75
Transverse
 <Nch> vs pTlead
 CDF_2010_I849042 1960 0.70
nch-vs-pt-trnsDif
 CDF_2010_I849042 1960 1.5
TransMAX
 <Nch> vs pTlead
 CDF_2010_I849042 1960 0.97
TransMIN
 <Nch> vs pTlead
 CDF_2010_I849042 1960 0.64
Toward
 <Nch> vs pTlead
 CDF_2010_I849042 1960 1.7
Jet Multiplicities
 Jet multiplicity
 CMS_EWK_10_012 7000 11
Jet Multiplicities
 Ratios of jet multiplicity
 CMS_EWK_10_012 7000 6.0
Underlying event
 Scalar Σ(pT)
 ATLAS_2019_I1736531 13000 15
Away
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 0.57
Transverse
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 5.1
sumpt-vs-pt-trnsDif
 CDF_2010_I849042 1960 5.0
TransMAX
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 5.3
TransMIN
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 4.1
Toward
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 5.4
z.m
 PHENIX_2019_I1672015 200 770,000,000
pT Z
 CDF_2000_I505738 1800 9.0
CDF_2012_I1124333 1960 8.2
CMS_2019_I1753680 13000 10*
CMS_2022_I2079374 13000 5.8
D0_2010_I856972 1960 1.8
PHENIX_2019_I1672015 200 470,000,000
z.pt._z.pt
 CMS_2022_I2079374 13000 1.0
z.pt_norm
 ATLAS_2011_I917931 7000 1.4
ATLAS_2019_I1768911 13000 3.2
CMS_2019_I1753680 13000 3.2
D0_2010_I856972 1960 1.1
y Z
 ATLAS_2016_I1467454 8000 3.7
CMS_2019_I1753680 13000 8.7
LHCB_2012_I1208102 7000 9.0
z.y_norm
 CMS_2019_I1753680 13000 0.19

* 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.