Generator

Details for Pythia 8.303 default vs. default-CD

pp/ppbar → Underlying Event


Observable Reference Energy χ2+5% (default) Δ χ2+5% (default-CD)
Away
<pT> vs Nch
ATLAS_2010_I879407 [900..7000] 0.25 -0.030 0.22
ATLAS_2017_I1509919 13000 0.080 +0.0080 0.088
Transverse
<pT> vs Nch
ATLAS_2010_I879407 [900..7000] 0.51 -0.010 0.50
ATLAS_2017_I1509919 13000 0.20 0 0.20
TransMAX
<pT> vs Nch
ATLAS_2017_I1509919 13000 0.24 0 0.24
TransMIN
<pT> vs Nch
ATLAS_2017_I1509919 13000 0.21 -0.020 0.19
Toward
<pT> vs Nch
ATLAS_2010_I879407 [900..7000] 0.39 -0.040 0.35
ATLAS_2017_I1509919 13000 0.075 +0.0090 0.084
Away
<pT> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.25 -0.030 0.22
ATLAS_2017_I1509919 13000 0.28 -0.13 0.15
Transverse
<pT> vs pTlead
ATLAS_2010_I879407 [900..7000] 1.3 -0.32 0.98
ATLAS_2017_I1509919 13000 0.59 +0.19 0.78
CDF_2010_I849042 1960 n/a - n/a
TransMAX
<pT> vs pTlead
ATLAS_2017_I1509919 13000 0.71 +0.23 0.94
TransMIN
<pT> vs pTlead
ATLAS_2017_I1509919 13000 1.3 -0.62 0.68
Toward
<pT> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.51 +0.11 0.62
ATLAS_2017_I1509919 13000 0.29 -0.030 0.26
Transverse
Strange <N> vs pTlead
CMS_2012_PAS_QCD_11_010 7000 12* +35 47
Transverse
Max(pT) vs pTlead
CDF_2010_I849042 1960 n/a - n/a
Transverse
Nch
CMS_2011_I916908 [900..7000] 1.6* +0.50 2.1*
Δφ distributions
<Nch> vs Δφ
ATLAS_2010_I879407 [900..7000] 1.6 -0.10 1.5
ATLAS_2017_I1509919 13000 n/a - n/a
CDF_2001_I564673 1800 3.8* +0.20 4.0*
Transverse
<Nch> vs ηlead
ATLAS_2010_I879407 7000 1.3 0 1.3
Away
<Nch> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.74 +0.080 0.82
ATLAS_2017_I1509919 13000 1.5 -0.30 1.2
CDF_2001_I564673 1800 2.1* -0.10 2.0*
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] 0.80 -0.24 0.56
ATLAS_2017_I1509919 13000 1.2 -0.44 0.76
CDF_2001_I564673 1800 2.0* +0.10 2.1*
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] 1.00* +0.60 1.6*
nch-vs-pt-trnsDif
CDF_2010_I849042 1960 n/a - n/a
TransDIF
<Nch> vs pTlead
ATLAS_2017_I1509919 13000 3.6 +0.40 4.0
CDF_2015_I1388868 [300..1960] 0.52* +0.58 1.1*
CMS_2015_I1385107 2760 n/a - n/a
TransMAX
<Nch> vs pTlead
ATLAS_2017_I1509919 13000 1.3 -0.20 1.1
CDF_2010_I849042 1960 n/a - n/a
CDF_2015_I1388868 [300..1960] 0.72* +0.78 1.5*
CMS_2015_I1385107 2760 n/a - n/a
TransMIN
<Nch> vs pTlead
ATLAS_2017_I1509919 13000 0.87 -0.28 0.59
CDF_2010_I849042 1960 n/a - n/a
CDF_2015_I1388868 [300..1960] 1.7* +0.60 2.3*
CMS_2015_I1385107 2760 n/a - n/a
Toward
<Nch> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.99 +0.11 1.1
ATLAS_2017_I1509919 13000 2.0 -0.10 1.9
CDF_2001_I564673 1800 2.6* +0.70 3.3*
CDF_2010_I849042 1960 n/a - n/a
pTlead
ATLAS_2017_I1509919 13000 1.8 -0.20 1.6
CMS_2011_I916908 [900..7000] 26* -4.0 22*
Transverse
pT spectrum
CDF_2001_I564673 1800 n/a - n/a
Δφ distributions
<pT> vs Δφ
ATLAS_2010_I879407 [900..7000] 2.9 -0.10 2.8
Transverse
σ(Nch) vs pTlead
ATLAS_2010_I879407 [900..7000] 0.62* +0.33 0.95
Transverse
σ(Σ(pT)) vs pTlead
ATLAS_2010_I879407 [900..7000] 4.1 -2.9 1.2
Transverse
Σ(ET)
ATLAS_2012_I1183818 7000 1.7* -0.83 0.87*
Transverse
Σ(ET) vs η
ATLAS_2012_I1183818 7000 2.5 +0.70 3.2
Transverse
Scalar Σ(pT)
CMS_2011_I916908 [900..7000] 3.2* +0.20 3.4*
Δφ distributions
Σ(pT) vs Δφ
ATLAS_2017_I1509919 13000 n/a - n/a
CDF_2001_I564673 1800 4.8* +0.20 5.0*
Transverse
Σ(pT) vs ηlead
ATLAS_2010_I879407 7000 1.4 -0.100 1.3
Away
Σ(pT) vs pTlead
ATLAS_2010_I879407 [900..7000] 0.76 +0.13 0.89
ATLAS_2017_I1509919 13000 1.4 -0.40 1.0
CDF_2001_I564673 1800 1.3* -0.10 1.2*
CDF_2010_I849042 1960 n/a - n/a
Transverse
Σ(pT) vs pTlead
ATLAS_2010_I879407 [900..7000] 0.91 -0.27 0.64
ATLAS_2017_I1509919 13000 1.4 -0.63 0.77
CDF_2001_I564673 1800 1.2* 0 1.2*
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 17* +28 45
TransAVE
Σ(pT) vs pTlead
CDF_2015_I1388868 [300..1960] 1.9* +1.1 3.0*
sumpt-vs-pt-trnsDif
CDF_2010_I849042 1960 n/a - n/a
TransDIF
Σ(pT) vs pTlead
ATLAS_2017_I1509919 13000 0.58 +0.41 0.99
CDF_2015_I1388868 [300..1960] 1.7* +0.70 2.4*
CMS_2015_I1385107 2760 n/a - n/a
TransMAX
Σ(pT) vs pTlead
ATLAS_2017_I1509919 13000 0.94 -0.12 0.82
CDF_2010_I849042 1960 n/a - n/a
CDF_2015_I1388868 [300..1960] 1.8* +1.00 2.8*
CMS_2015_I1385107 2760 n/a - n/a
TransMIN
Σ(pT) vs pTlead
ATLAS_2017_I1509919 13000 1.3 -0.52 0.78
CDF_2010_I849042 1960 n/a - n/a
CDF_2015_I1388868 [300..1960] 2.8* +2.0 4.8*
CMS_2015_I1385107 2760 n/a - n/a
Toward
Σ(pT) vs pTlead
ATLAS_2010_I879407 [900..7000] 0.89 +0.010 0.90
ATLAS_2017_I1509919 13000 1.5 0 1.5
CDF_2001_I564673 1800 0.098* +0.042 0.14*
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.