Generator / tune

Details for Pythia 8.308 default-MBR vs. 8.313

pp/ppbar → Underlying Event


Observable Reference Energy χ2+5% (8.308) Δ χ2+5% (8.313)
Away
<pT> vs Nch
ATLAS_2010_I879407 [900..7000] - 0.20
ATLAS_2017_I1509919 13000 - 0.090
Transverse
<pT> vs Nch
ATLAS_2010_I879407 [900..7000] - 0.48
ATLAS_2017_I1509919 13000 - 0.22
TransMAX
<pT> vs Nch
ATLAS_2017_I1509919 13000 - 0.25
TransMIN
<pT> vs Nch
ATLAS_2017_I1509919 13000 - 0.22
Toward
<pT> vs Nch
ATLAS_2010_I879407 [900..7000] - 0.38
ATLAS_2017_I1509919 13000 - 0.086
Away
<pT> vs pTlead
ATLAS_2010_I879407 [900..7000] - 0.33*
ATLAS_2017_I1509919 13000 - 0.11
Transverse
<pT> vs pTlead
ATLAS_2010_I879407 [900..7000] - 1.1*
ATLAS_2017_I1509919 13000 - 1.0
CDF_2010_I849042 1960 - n/a
TransMAX
<pT> vs pTlead
ATLAS_2017_I1509919 13000 - 1.1
TransMIN
<pT> vs pTlead
ATLAS_2017_I1509919 13000 - 1.0
Toward
<pT> vs pTlead
ATLAS_2010_I879407 [900..7000] - 0.62*
ATLAS_2017_I1509919 13000 - 0.28
Transverse
Strange <N> vs pTlead
CMS_2012_PAS_QCD_11_010 7000 - 13*
Transverse
Max(pT) vs pTlead
CDF_2010_I849042 1960 - n/a
Transverse
Nch
CMS_2011_I916908 [900..7000] - 2.3*
Δφ distributions
<Nch> vs Δφ
ATLAS_2010_I879407 [900..7000] - 1.7
ATLAS_2017_I1509919 13000 - n/a
CDF_2001_I564673 1800 - 4.0*
Transverse
<Nch> vs ηlead
ATLAS_2010_I879407 7000 - 1.3
Away
<Nch> vs pTlead
ATLAS_2010_I879407 [900..7000] - 1.0*
ATLAS_2017_I1509919 13000 - 1.4
CDF_2001_I564673 1800 - 2.2*
CDF_2010_I849042 1960 - n/a
STAR_2009_UE_HELEN 200 - n/a
Transverse
<Nch> vs pTlead
ATLAS_2010_I879407 [900..7000] - 0.81*
ATLAS_2017_I1509919 13000 - 0.89
CDF_2001_I564673 1800 - 2.5*
CDF_2010_I849042 1960 - n/a
CMS_2011_I916908 [900..7000] - n/a
CMS_2015_I1385107 2760 - n/a
TransAVE
<Nch> vs pTlead
CDF_2015_I1388868 [300..1960] - 0.53*
nch-vs-pt-trnsDif
CDF_2010_I849042 1960 - n/a
TransDIF
<Nch> vs pTlead
ATLAS_2017_I1509919 13000 - 3.1
CDF_2015_I1388868 [300..1960] - 0.79*
CMS_2015_I1385107 2760 - n/a
TransMAX
<Nch> vs pTlead
ATLAS_2017_I1509919 13000 - 1.1
CDF_2010_I849042 1960 - n/a
CDF_2015_I1388868 [300..1960] - 0.55*
CMS_2015_I1385107 2760 - n/a
TransMIN
<Nch> vs pTlead
ATLAS_2017_I1509919 13000 - 0.78
CDF_2010_I849042 1960 - n/a
CDF_2015_I1388868 [300..1960] - 0.81*
CMS_2015_I1385107 2760 - n/a
Toward
<Nch> vs pTlead
ATLAS_2010_I879407 [900..7000] - 1.1*
ATLAS_2017_I1509919 13000 - 2.0
CDF_2001_I564673 1800 - 2.4*
CDF_2010_I849042 1960 - n/a
pTlead
ATLAS_2017_I1509919 13000 - 1.6
CMS_2011_I916908 [900..7000] - 28*
Transverse
pT spectrum
CDF_2001_I564673 1800 - 3.6*
Δφ distributions
<pT> vs Δφ
ATLAS_2010_I879407 [900..7000] - 2.9
Transverse
σ(Nch) vs pTlead
ATLAS_2010_I879407 [900..7000] - 0.58*
Transverse
σ(Σ(pT)) vs pTlead
ATLAS_2010_I879407 [900..7000] - 0.74*
Transverse
Σ(ET)
ATLAS_2012_I1183818 7000 - 1.4*
Transverse
Σ(ET) vs η
ATLAS_2012_I1183818 7000 - 1.8
Transverse
Scalar Σ(pT)
CMS_2011_I916908 [900..7000] - 6.9*
Δφ distributions
Σ(pT) vs Δφ
ATLAS_2017_I1509919 13000 - n/a
CDF_2001_I564673 1800 - 4.9*
Transverse
Σ(pT) vs ηlead
ATLAS_2010_I879407 7000 - 1.1
Away
Σ(pT) vs pTlead
ATLAS_2010_I879407 [900..7000] - 0.83*
ATLAS_2017_I1509919 13000 - 1.3
CDF_2001_I564673 1800 - 1.2*
CDF_2010_I849042 1960 - n/a
Transverse
Σ(pT) vs pTlead
ATLAS_2010_I879407 [900..7000] - 1.1*
ATLAS_2017_I1509919 13000 - 0.87
CDF_2001_I564673 1800 - 1.5*
CDF_2010_I849042 1960 - n/a
CMS_2011_I916908 [900..7000] - n/a
CMS_2015_I1385107 2760 - n/a
Transverse
Strange Σ(pT) vs pTlead
CMS_2012_PAS_QCD_11_010 7000 - 18*
TransAVE
Σ(pT) vs pTlead
CDF_2015_I1388868 [300..1960] - 1.2*
sumpt-vs-pt-trnsDif
CDF_2010_I849042 1960 - n/a
TransDIF
Σ(pT) vs pTlead
ATLAS_2017_I1509919 13000 - 0.84
CDF_2015_I1388868 [300..1960] - 1.1*
CMS_2015_I1385107 2760 - n/a
TransMAX
Σ(pT) vs pTlead
ATLAS_2017_I1509919 13000 - 0.88
CDF_2010_I849042 1960 - n/a
CDF_2015_I1388868 [300..1960] - 1.2*
CMS_2015_I1385107 2760 - n/a
TransMIN
Σ(pT) vs pTlead
ATLAS_2017_I1509919 13000 - 0.91
CDF_2010_I849042 1960 - n/a
CDF_2015_I1388868 [300..1960] - 1.4*
CMS_2015_I1385107 2760 - n/a
Toward
Σ(pT) vs pTlead
ATLAS_2010_I879407 [900..7000] - 0.85*
ATLAS_2017_I1509919 13000 - 1.6
CDF_2001_I564673 1800 - 0.21*
CDF_2010_I849042 1960 - 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 182 histograms.