Generator

Details for Pythia 8.201 default vs. default-CD

pp/ppbar → Soft QCD (inelastic)


Observable Reference Energy χ2+5% (default) Δ χ2+5% (default-CD)
Identified Particles : pT
D0
ALICE_2017_I1511870 7000 n/a - n/a
ALICE_2022_I1868463 13000 5.6 - n/a
LHCB_2013_I1218996 7000 3.4 +0.30 3.7
Identified Particles : pT
D0
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : σ
D0
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : pT
D+
ALICE_2017_I1511870 7000 2.4 +0.70 3.1
LHCB_2013_I1218996 7000 7.6 -0.80 6.8
Identified Particles : σ
D+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D+/D0 vs pT
ALICE_2017_I1511870 7000 0.89 -0.16 0.73
Identified Particles : pT
Ds+
ALICE_2017_I1511870 7000 0.74 -0.070 0.67
LHCB_2013_I1218996 7000 5.5* -1.5 4.0
Identified Particles : σ
Ds+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
Ds+/D0 vs pT
ALICE_2017_I1511870 7000 0.74 +2.0 2.7
Identified Particles : Ratios
Ds+/D+ vs pT
ALICE_2017_I1511870 7000 1.6 +2.2 3.8
Identified Particles : pT
D*+
ALICE_2017_I1511870 7000 1.6 -0.30 1.3
LHCB_2013_I1218996 7000 7.1 -1.7 5.4
Identified Particles : σ
D*+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D*+/D0 vs pT
ALICE_2017_I1511870 7000 1.3 -0.39 0.91
K0S2pippim_pt
ALICE_2020_I1797443 13000 9.6 - n/a
Identified Particles : pT
K0S
ALICE_2011_I881474 900 9.1 -0.30 8.8
ALICE_2020_I1797443 13000 3.1 - n/a
LHCB_2010_I865584 900 2.9 +0.10 3.0
STAR_2006_I722757 200 n/a - 11
Identified Particles : Ratios
K-/K+ vs |y|
LHCB_2012_I1119400 [900..7000] 1.2 -0.100 1.1
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 9.4 -0.20 9.2
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 13 -1.0 12
Identified Particles : pT
K-
ALICE_2011_I885104 900 3.3 +0.10 3.4
STAR_2006_I722757 200 17 +2.0 19
STAR_2008_I793126 200 1.8 -0.20 1.6
Identified Particles : pT
K+
ALICE_2011_I885104 900 3.5 +0.40 3.9
STAR_2006_I722757 200 14 -1.0 13
STAR_2008_I793126 200 2.8 -0.30 2.5
Identified Particles : pT
K+ + K-
ALICE_2015_I1357424 7000 3.2 +0.40 3.6
ALICE_2020_I1797443 13000 n/a - n/a
Kst0Kst0b2pippim_pt
ALICE_2020_I1797443 13000 6.5 - n/a
Kst0Kst0b_pt
ALICE_2020_I1797443 13000 4.3 - n/a
Identified Particles : Ratios
Λ/K0S vs pT
ALICE_2011_I881474 900 64 +12 76
ALICE_2020_I1797443 13000 22 - n/a
LLbar_pt
ALICE_2020_I1797443 13000 38 - n/a
Identified Particles : pT
Λ
ALICE_2011_I881474 900 30 +3.0 33
STAR_2006_I722757 200 n/a - n/a
Identified Particles : pT
Λc+
ALICE_2022_I1868463 13000 15 - n/a
LHCB_2013_I1218996 7000 100 +70 170
Identified Particles : Ratios
Λc+/D0 vs pT
ALICE_2022_I1868463 13000 29 - n/a
Identified Particles : Ratios
Λc+ from Σc0,+,++/Λc+ vs pT
ALICE_2022_I1868463 13000 5.8 - n/a
Identified Particles : Ratios
Λbar/K0S vs pT
LHCB_2011_I917009 [900..7000] 12 -1.0 11
Identified Particles : Ratios
Λbar/K0S vs |y|
LHCB_2011_I917009 [900..7000] 9.3 -0.50 8.8
Identified Particles : Ratios
Λbar/K0S vs |Δy|
LHCB_2011_I917009 [900..7000] 9.7 -0.20 9.5
Identified Particles : Ratios
Λbar/Λ vs pT
LHCB_2011_I917009 [900..7000] 1.7 +0.30 2.0
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
Λbar/Λ vs |y|
LHCB_2011_I917009 [900..7000] 2.6 +0.10 2.7
Identified Particles : Ratios
Λbar/Λ vs |Δy|
LHCB_2011_I917009 [900..7000] 3.6 -0.30 3.3
Identified Particles : pT
Λbar
ALICE_2011_I881474 900 23 -1.0 22
STAR_2006_I722757 200 n/a - n/a
Omega2phi_pt
ALICE_2020_I1797443 13000 n/a - n/a
Omegapm_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
Σbar(1385)-
ALICE_2014_I1300380 7000 10.0 +1.0 11
Identified Particles : pT
Σbar(1385)+
ALICE_2014_I1300380 7000 9.2 -0.40 8.8
Identified Particles : pT
Σ(1385)-
ALICE_2014_I1300380 7000 12 0 12
Identified Particles : pT
Σ(1385)+
ALICE_2014_I1300380 7000 13 0 13
Identified Particles : pT
Σc0,+,++
ALICE_2022_I1868463 13000 11 - n/a
Identified Particles : Ratios
Σc0,+,++/D0 vs pT
ALICE_2022_I1868463 13000 18 - n/a
Identified Particles : pT
Ξ(1530)
ALICE_2014_I1300380 7000 n/a - n/a
Xi2phi_pt
ALICE_2020_I1797443 13000 7.2 - n/a
Identified Particles : pT
Ξ
ALICE_2011_I881474 900 8.9 +2.1 11
ALICE_2020_I1797443 13000 70 - n/a
Identified Particles : pT
Ξ-
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
Ξ+/Ξ- vs pT
STAR_2006_I722757 200 n/a - n/a
Identified Particles : pT
Ξ+
STAR_2006_I722757 200 n/a - n/a
<pT>j vs Nch
CMS_2013_I1261026 7000 0.24 -0.080 0.16
<pT> vs Nch
ALICE_2010_I860416 900 0.49* +0.030 0.52*
ATLAS_2010_I849050 900 n/a - 0.77
CDF_2002_I567774 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
CMS_2013_I1261026 7000 0.50 +0.14 0.64
UA1_1990_I280412 [63..900] 2.6* 0 2.6*
Identified Particles : σ
ccbar
ALICE_2017_I1511870 7000 n/a - n/a
Energy flow
LHCB_2013_I1208105 7000 5.5 0 5.5
Forward energy flow ratio
CMS_2013_I1218372 [900..7000] 1.6* +0.100 1.7*
EM energy spectrum
CMS_2017_I1511284 13000 6.4 - n/a
Hadronic energy spectrum
CMS_2017_I1511284 13000 39 - n/a
Total energy spectrum
CMS_2017_I1511284 13000 21 - n/a
η Distributions
ALICE_2010_I852264 [900..7000] 0.16* -0.020 0.14*
ATLAS_2010_I849050 900 0.40 -0.010 0.39
CDF_1990_I283352 [630..1800] n/a - n/a
CMS_2015_I1384119 13000 0.40 - n/a
TOTEM_2012_I1115294 7000 0.10 +0.0100 0.11
UA5_1982_I176647 53 13 0 13
UA5_1986_I233599 [200..900] 3.2 0 3.2
Identified Particles : Ratios
η/π0 vs pT
ALICE_2012_I1116147 7000 n/a - n/a
Rapidity gap size
ATLAS_2012_I1084540 7000 4.3 +0.10 4.4
Identified Particles : pT
η
ALICE_2012_I1116147 7000 1.4 +0.10 1.5
FB Correlations
b(Nch) vs Δη
UA5_1988_I263399 [200..900] 23 +1.0 24
FB Correlations
b(Nch) vs ηC
UA5_1988_I263399 [200..900] 32 +1.0 33
Jet pT
CMS_2013_I1261026 7000 n/a - n/a
STAR_2006_I723509 200 15* +1.0 16*
Jet Shapes
Differential Jet Shape
CMS_2013_I1261026 7000 1.2 +0.70 1.9
Diffraction
ξ
ATLAS_2019_I1762584 8000 62 - n/a
n.E
LHCF_2020_I1783943 13000 140 - n/a
n.avgk
LHCF_2020_I1783943 13000 5.9 - n/a
n.eflow
LHCF_2020_I1783943 13000 42 - n/a
n.k
LHCF_2020_I1783943 13000 51 - n/a
Multiplicity Distributions
ALICE_2010_I852264 7000 2.0 0 2.0
ALICE_2010_I852450 [900..2360] 3.5* -0.40 3.1*
ATLAS_2010_I849050 900 n/a - 0.63
CDF_2002_I567774 [630..1800] n/a - n/a
CDF_2009_NOTE_9936 1960 n/a - n/a
STAR_2008_I793126 200 n/a - n/a
UA1_1990_I280412 [200..900] 27* +1.0 28*
UA5_1987_I244829 546 n/a - n/a
UA5_1989_I267179 [200..900] n/a - n/a
Jet Multiplicities
Nj vs Nch
CMS_2013_I1261026 7000 0.29 +0.27 0.56*
Identified Particles : Ratios
p/π+ vs pT
ALICE_2020_I1797443 13000 n/a - n/a
STAR_2006_I709170 200 n/a - n/a
Identified Particles : pT
p
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 110 -17 93
Identified Particles : Ratios
pbar/p vs pT
STAR_2006_I709170 200 n/a - n/a
Identified Particles : Ratios
pbar/p vs |y|
LHCB_2012_I1119400 [900..7000] 1.4 +0.10 1.5
Identified Particles : Ratios
pbar/π vs pT
STAR_2006_I709170 200 n/a - n/a
Identified Particles : pT
pbar
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 34 +3.0 37
Identified Particles : Ratios
(pbar+p)/(K-+K+) vs |y|
LHCB_2012_I1119400 [900..7000] 1.8 -0.10 1.7
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 5.9 -0.30 5.6
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 6.6 +0.50 7.1
phi2pippim_pt
ALICE_2020_I1797443 13000 26 - n/a
Identified Particles : pT
φ
ALICE_2011_I881474 900 3.2 -1.2 2.0
ALICE_2020_I1797443 13000 16 - n/a
ATLAS_2014_I1282441 7000 2.6 -0.90 1.7
LHCB_2011_I919315 7000 6.3 -0.30 6.0
Identified Particles : Y
φ
ATLAS_2014_I1282441 7000 1.6 -0.40 1.2
LHCB_2011_I919315 7000 4.2 -0.10 4.1
Identified Particles : pT
π0
ALICE_2012_I1116147 [900..7000] 1.7* +0.10 1.8*
LHCF_2012_I1115479 7000 3.3 0 3.3
Identified Particles : Ratios
π-/π+ vs pT
STAR_2006_I709170 200 n/a - n/a
Identified Particles : Ratios
π-/π+ vs |y|
LHCB_2012_I1119400 [900..7000] 0.22 -0.050 0.17
Identified Particles : pT
π-
ALICE_2011_I885104 900 2.9 0 2.9
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 6.8 -1.0 5.8
Identified Particles : pT
π+
ALICE_2011_I885104 900 3.1 +0.10 3.2
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 5.8 +1.3 7.1
Identified Particles : pT
π+ + π-
ALICE_2015_I1357424 7000 6.5 0 6.5
ALICE_2020_I1797443 13000 10 - n/a
Identified Particles : pT
pbar
ALICE_2011_I885104 900 5.2 -1.0 4.2
Identified Particles : pT
p
ALICE_2011_I885104 900 5.5 -0.50 5.0
Identified Particles : pT
p + pbar
ALICE_2015_I1357424 7000 3.9 -0.50 3.4
ALICE_2020_I1797443 13000 n/a - n/a
pT Distributions
ALICE_2010_I860416 900 4.8 - n/a
ATLAS_2010_I849050 900 5.8 -0.20 5.6
CDF_1988_I263320 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 14* -2.0 12*
<pT> vs mass
ALICE_2011_I885104 900 n/a - n/a
ALICE_2014_I1300380 7000 n/a - n/a
STAR_2006_I722757 200 n/a - n/a
Diffraction
Δη
ATLAS_2019_I1762584 8000 44 - n/a
Diffraction
|t|
ATLAS_2019_I1762584 8000 49 - n/a
sqrts.xsec
ALICE_2012_I1181770 900:2760:7000 n/a - n/a
Σ(ET)
ATLAS_2012_I1183818 7000 7.6 -0.30 7.3
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 49* -1.0 48*
Σ(ET) vs Nch
UA1_1990_I280412 [200..900] 22* -1.0 21*
Diffractive ξ
CMS_2012_I1184941 7000 n/a - n/a
Cross sections
ATLAS_2011_I894867 7000 3.0 +0.10 3.1
CMS_2012_I1193338 7000 2.0 0 2.0

* 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 636 histograms.