Generator

Details for Pythia 8.165 tune-4cx vs. tune-A2

pp/ppbar → Underlying Event


Observable Reference Energy χ2+5% (tune-4cx) Δ χ2+5% (tune-A2)
Away
<pT> vs Nch
ATLAS_2010_I879407 [900..7000] 0.18* -0.050 0.13*
ATLAS_2017_I1509919 13000 0.073 -0.0090 0.064
Transverse
<pT> vs Nch
ATLAS_2010_I879407 [900..7000] 0.16* 0 0.16*
ATLAS_2017_I1509919 13000 0.14 +0.0100 0.15
TransMAX
<pT> vs Nch
ATLAS_2017_I1509919 13000 0.19 +0.020 0.21
TransMIN
<pT> vs Nch
ATLAS_2017_I1509919 13000 0.15 +0.060 0.21
Toward
<pT> vs Nch
ATLAS_2010_I879407 [900..7000] 0.11* -0.053 0.057*
ATLAS_2017_I1509919 13000 0.086 -0.0070 0.079
Away
<pT> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.56* - n/a
ATLAS_2017_I1509919 13000 0.26 +1.6 1.9
Transverse
<pT> vs pTlead
ATLAS_2010_I879407 [900..7000] 1.3* - n/a
ATLAS_2017_I1509919 13000 0.33 +1.1 1.4
CDF_2010_I849042 1960 n/a - n/a
TransMAX
<pT> vs pTlead
ATLAS_2017_I1509919 13000 0.41 +1.1 1.5
TransMIN
<pT> vs pTlead
ATLAS_2017_I1509919 13000 0.46 +0.49 0.95
Toward
<pT> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.39* - n/a
ATLAS_2017_I1509919 13000 0.47 +0.73 1.2
Transverse
Strange <N> vs pTlead
CMS_2012_PAS_QCD_11_010 7000 n/a - 50*
Transverse
Max(pT) vs pTlead
CDF_2010_I849042 1960 n/a - n/a
Transverse
Nch
CMS_2011_I916908 [900..7000] 5.1* -1.0 4.1*
Δφ distributions
<Nch> vs Δφ
ATLAS_2010_I879407 [900..7000] 0.76* -0.010 0.75*
ATLAS_2017_I1509919 13000 n/a - n/a
CDF_2001_I564673 1800 n/a - n/a
Transverse
<Nch> vs ηlead
ATLAS_2010_I879407 7000 0.75 +0.21 0.96
Away
<Nch> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.87* - n/a
ATLAS_2017_I1509919 13000 0.99 -0.15 0.84
CDF_2001_I564673 1800 n/a - n/a
CDF_2010_I849042 1960 n/a - n/a
STAR_2009_UE_HELEN 200 n/a - n/a
Transverse
<Nch> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.81* - n/a
ATLAS_2017_I1509919 13000 0.73 +0.11 0.84
CDF_2001_I564673 1800 n/a - n/a
CDF_2010_I849042 1960 n/a - n/a
CMS_2011_I916908 [900..7000] n/a - n/a
CMS_2015_I1385107 2760 n/a - n/a
TransAVE
<Nch> vs pTlead
CDF_2015_I1388868 [300..1960] n/a - n/a
nch-vs-pt-trnsDif
CDF_2010_I849042 1960 n/a - n/a
TransDIF
<Nch> vs pTlead
ATLAS_2017_I1509919 13000 3.1 -0.90 2.2
CDF_2015_I1388868 [300..1960] n/a - n/a
CMS_2015_I1385107 2760 n/a - n/a
TransMAX
<Nch> vs pTlead
ATLAS_2017_I1509919 13000 0.92 -0.020 0.90
CDF_2010_I849042 1960 n/a - n/a
CDF_2015_I1388868 [300..1960] n/a - n/a
CMS_2015_I1385107 2760 n/a - n/a
TransMIN
<Nch> vs pTlead
ATLAS_2017_I1509919 13000 0.89 +0.41 1.3
CDF_2010_I849042 1960 n/a - n/a
CDF_2015_I1388868 [300..1960] n/a - n/a
CMS_2015_I1385107 2760 n/a - n/a
Toward
<Nch> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.60* - n/a
ATLAS_2017_I1509919 13000 1.3 -0.30 1.0
CDF_2001_I564673 1800 n/a - n/a
CDF_2010_I849042 1960 n/a - n/a
pTlead
ATLAS_2017_I1509919 13000 3.5 -1.1 2.4
CMS_2011_I916908 [900..7000] n/a - n/a
Transverse
pT spectrum
CDF_2001_I564673 1800 n/a - n/a
Δφ distributions
<pT> vs Δφ
ATLAS_2010_I879407 [900..7000] 1.1* +0.100 1.2*
Transverse
σ(Nch) vs pTlead
ATLAS_2010_I879407 [900..7000] 1.4* - n/a
Transverse
σ(Σ(pT)) vs pTlead
ATLAS_2010_I879407 [900..7000] 3.4* - n/a
Transverse
Σ(ET)
ATLAS_2012_I1183818 7000 1.0* +1.0 2.0
Transverse
Σ(ET) vs η
ATLAS_2012_I1183818 7000 1.8 +2.3 4.1
Transverse
Scalar Σ(pT)
CMS_2011_I916908 [900..7000] n/a - n/a
Δφ distributions
Σ(pT) vs Δφ
ATLAS_2017_I1509919 13000 n/a - n/a
CDF_2001_I564673 1800 n/a - n/a
Transverse
Σ(pT) vs ηlead
ATLAS_2010_I879407 7000 1.0 +0.40 1.4
Away
Σ(pT) vs pTlead
ATLAS_2010_I879407 [900..7000] 0.76* - n/a
ATLAS_2017_I1509919 13000 0.86 -0.40 0.46
CDF_2001_I564673 1800 n/a - n/a
CDF_2010_I849042 1960 n/a - n/a
Transverse
Σ(pT) vs pTlead
ATLAS_2010_I879407 [900..7000] 1.2* - n/a
ATLAS_2017_I1509919 13000 0.79 +0.41 1.2
CDF_2001_I564673 1800 n/a - n/a
CDF_2010_I849042 1960 n/a - n/a
CMS_2011_I916908 [900..7000] n/a - n/a
CMS_2015_I1385107 2760 n/a - n/a
Transverse
Strange Σ(pT) vs pTlead
CMS_2012_PAS_QCD_11_010 7000 n/a - 55*
TransAVE
Σ(pT) vs pTlead
CDF_2015_I1388868 [300..1960] n/a - n/a
sumpt-vs-pt-trnsDif
CDF_2010_I849042 1960 n/a - n/a
TransDIF
Σ(pT) vs pTlead
ATLAS_2017_I1509919 13000 0.72 -0.12 0.60
CDF_2015_I1388868 [300..1960] n/a - n/a
CMS_2015_I1385107 2760 n/a - n/a
TransMAX
Σ(pT) vs pTlead
ATLAS_2017_I1509919 13000 0.75 +0.24 0.99
CDF_2010_I849042 1960 n/a - n/a
CDF_2015_I1388868 [300..1960] n/a - n/a
CMS_2015_I1385107 2760 n/a - n/a
TransMIN
Σ(pT) vs pTlead
ATLAS_2017_I1509919 13000 0.95 +0.65 1.6
CDF_2010_I849042 1960 n/a - n/a
CDF_2015_I1388868 [300..1960] n/a - n/a
CMS_2015_I1385107 2760 n/a - n/a
Toward
Σ(pT) vs pTlead
ATLAS_2010_I879407 [900..7000] 0.63* - n/a
ATLAS_2017_I1509919 13000 0.93 -0.18 0.75
CDF_2001_I564673 1800 n/a - n/a
CDF_2010_I849042 1960 n/a - n/a

* 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 364 histograms.