Generator

Details for Pythia 6.424 default vs. a

pp/ppbar → Underlying Event


Observable Reference Energy χ2+5% (default) Δ χ2+5% (a)
Away
<pT> vs Nch
ATLAS_2010_I879407 [900..7000] 2.8* 0 2.8*
ATLAS_2017_I1509919 13000 4.0 - n/a
Transverse
<pT> vs Nch
ATLAS_2010_I879407 [900..7000] 2.5* +0.30 2.8*
ATLAS_2017_I1509919 13000 4.2 - n/a
TransMAX
<pT> vs Nch
ATLAS_2017_I1509919 13000 4.2 - n/a
TransMIN
<pT> vs Nch
ATLAS_2017_I1509919 13000 3.9 - n/a
Toward
<pT> vs Nch
ATLAS_2010_I879407 [900..7000] 2.1* +0.30 2.4*
ATLAS_2017_I1509919 13000 3.5 - n/a
Away
<pT> vs pTlead
ATLAS_2010_I879407 [900..7000] 1.0* -0.21 0.79*
ATLAS_2017_I1509919 13000 1.5 - n/a
Transverse
<pT> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.27* +0.17 0.44*
ATLAS_2017_I1509919 13000 0.34 - n/a
CDF_2010_I849042 1960 n/a - n/a
TransMAX
<pT> vs pTlead
ATLAS_2017_I1509919 13000 0.39 - n/a
TransMIN
<pT> vs pTlead
ATLAS_2017_I1509919 13000 0.33 - n/a
Toward
<pT> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.82* -0.15 0.67*
ATLAS_2017_I1509919 13000 1.9 - n/a
Transverse
Strange <N> vs pTlead
CMS_2012_PAS_QCD_11_010 7000 47* - n/a
Transverse
Max(pT) vs pTlead
CDF_2010_I849042 1960 n/a - n/a
Transverse
Nch
CMS_2011_I916908 [900..7000] n/a - 22*
Δφ distributions
<Nch> vs Δφ
ATLAS_2010_I879407 [900..7000] 6.1* -1.2 4.9*
ATLAS_2017_I1509919 13000 n/a - n/a
CDF_2001_I564673 1800 n/a - n/a
Transverse
<Nch> vs ηlead
ATLAS_2010_I879407 7000 6.2 -1.4 4.8
Away
<Nch> vs pTlead
ATLAS_2010_I879407 [900..7000] 5.9* -0.90 5.0*
ATLAS_2017_I1509919 13000 6.9 - n/a
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] 11* -1.0 10*
ATLAS_2017_I1509919 13000 18 - n/a
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 2.4 - n/a
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 11 - n/a
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 33 - n/a
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] 3.6* -0.40 3.2*
ATLAS_2017_I1509919 13000 4.1 - n/a
CDF_2001_I564673 1800 n/a - n/a
CDF_2010_I849042 1960 n/a - n/a
pTlead
ATLAS_2017_I1509919 13000 3.0 - n/a
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] 4.6* -0.50 4.1*
Transverse
σ(Nch) vs pTlead
ATLAS_2010_I879407 [900..7000] 2.4* +2.5 4.9*
Transverse
σ(Σ(pT)) vs pTlead
ATLAS_2010_I879407 [900..7000] 3.1* +1.3 4.4*
Transverse
Σ(ET)
ATLAS_2012_I1183818 7000 3.6* -1.3 2.3*
Transverse
Σ(ET) vs η
ATLAS_2012_I1183818 7000 18 -14 4.4
Transverse
Scalar Σ(pT)
CMS_2011_I916908 [900..7000] n/a - 19*
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 2.5 -0.70 1.8
Away
Σ(pT) vs pTlead
ATLAS_2010_I879407 [900..7000] 2.6* -0.80 1.8*
ATLAS_2017_I1509919 13000 3.6 - n/a
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] 7.4* -0.50 6.9*
ATLAS_2017_I1509919 13000 13 - n/a
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 48* - n/a
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 4.0 - n/a
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 9.3 - n/a
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 23 - n/a
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] 0.79* -0.15 0.64*
ATLAS_2017_I1509919 13000 1.1 - n/a
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.