Generator

Details for Pythia 6.425 default vs. 350

pp/ppbar → Soft QCD (inelastic)


Observable Reference Energy χ2+5% (default) Δ χ2+5% (350)
Identified Particles : pT
D0
ALICE_2017_I1511870 7000 9.6 - n/a
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 120 -120 4.8
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 8.6 - n/a
LHCB_2013_I1218996 7000 86* -79 7.5
Identified Particles : σ
D+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D+/D0 vs pT
ALICE_2017_I1511870 7000 0.37 - n/a
Identified Particles : pT
Ds+
ALICE_2017_I1511870 7000 1.6 -1.6 0.018
LHCB_2013_I1218996 7000 9.7* -6.9 2.8
Identified Particles : σ
Ds+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
Ds+/D0 vs pT
ALICE_2017_I1511870 7000 1.2 -0.56 0.64
Identified Particles : Ratios
Ds+/D+ vs pT
ALICE_2017_I1511870 7000 0.99 -0.12 0.87
Identified Particles : pT
D*+
ALICE_2017_I1511870 7000 n/a - n/a
LHCB_2013_I1218996 7000 33 -29 4.2
Identified Particles : σ
D*+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D*+/D0 vs pT
ALICE_2017_I1511870 7000 n/a - n/a
K0S2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
K0S
ALICE_2011_I881474 900 13 +2.0 15
ALICE_2020_I1797443 13000 n/a - n/a
LHCB_2010_I865584 900 4.2 +2.5 6.7
STAR_2006_I722757 200 9.3 - n/a
Identified Particles : Ratios
K-/K+ vs |y|
LHCB_2012_I1119400 [900..7000] 1.2 +0.20 1.4
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 9.1 +3.9 13
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 7.3 +7.7 15
Identified Particles : pT
K-
ALICE_2011_I885104 900 6.6 -1.1 5.5
STAR_2006_I722757 200 15 +10 25
STAR_2008_I793126 200 2.4 0 2.4
Identified Particles : pT
K+
ALICE_2011_I885104 900 5.4 -0.10 5.3
STAR_2006_I722757 200 7.8 +6.2 14
STAR_2008_I793126 200 2.5 -0.10 2.4
Identified Particles : pT
K+ + K-
ALICE_2015_I1357424 7000 17 -14 3.5
ALICE_2020_I1797443 13000 n/a - n/a
Kst0Kst0b2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Kst0Kst0b_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : Ratios
Λ/K0S vs pT
ALICE_2011_I881474 900 44 -10 34
ALICE_2020_I1797443 13000 n/a - n/a
LLbar_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
Λ
ALICE_2011_I881474 900 31 +5.0 36
STAR_2006_I722757 200 n/a - n/a
Identified Particles : pT
Λc+
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 300 -260 42
Identified Particles : Ratios
Λc+/D0 vs pT
ALICE_2022_I1868463 13000 n/a - n/a
Identified Particles : Ratios
Λc+ from Σc0,+,++/Λc+ vs pT
ALICE_2022_I1868463 13000 n/a - n/a
Identified Particles : Ratios
Λbar/K0S vs pT
LHCB_2011_I917009 [900..7000] 4.9 +2.0 6.9
Identified Particles : Ratios
Λbar/K0S vs |y|
LHCB_2011_I917009 [900..7000] 4.3 +1.1 5.4
Identified Particles : Ratios
Λbar/K0S vs |Δy|
LHCB_2011_I917009 [900..7000] 5.7 -1.2 4.5
Identified Particles : Ratios
Λbar/Λ vs pT
LHCB_2011_I917009 [900..7000] 3.9 -2.1 1.8
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
Λbar/Λ vs |y|
LHCB_2011_I917009 [900..7000] 4.4 -1.8 2.6
Identified Particles : Ratios
Λbar/Λ vs |Δy|
LHCB_2011_I917009 [900..7000] 6.4 -2.8 3.6
Identified Particles : pT
Λbar
ALICE_2011_I881474 900 20 +2.0 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 -4.6 5.4
Identified Particles : pT
Σbar(1385)+
ALICE_2014_I1300380 7000 8.5 -2.8 5.7
Identified Particles : pT
Σ(1385)-
ALICE_2014_I1300380 7000 9.9 -2.0 7.9
Identified Particles : pT
Σ(1385)+
ALICE_2014_I1300380 7000 11 -4.1 6.9
Identified Particles : pT
Σc0,+,++
ALICE_2022_I1868463 13000 n/a - n/a
Identified Particles : Ratios
Σc0,+,++/D0 vs pT
ALICE_2022_I1868463 13000 n/a - n/a
Identified Particles : pT
Ξ(1530)
ALICE_2014_I1300380 7000 n/a - n/a
Xi2phi_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
Ξ
ALICE_2011_I881474 900 10 -1.2 8.8
ALICE_2020_I1797443 13000 n/a - 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 1.5 -1.3 0.20
<pT> vs Nch
ALICE_2010_I860416 900 0.60* -0.090 0.51*
ATLAS_2010_I849050 900 n/a - 0.49
CDF_2002_I567774 [630..1800] 0.58* +1.5 2.1*
CDF_2009_I817466 1960 n/a - n/a
CMS_2013_I1261026 7000 2.3 -2.1 0.17
UA1_1990_I280412 [63..900] 2.6* -1.2 1.4*
Identified Particles : σ
ccbar
ALICE_2017_I1511870 7000 n/a - n/a
Energy flow
LHCB_2013_I1208105 7000 67 -6.0 61
Forward energy flow ratio
CMS_2013_I1218372 [900..7000] 3.9* -3.6 0.31*
EM energy spectrum
CMS_2017_I1511284 13000 n/a - n/a
Hadronic energy spectrum
CMS_2017_I1511284 13000 n/a - n/a
Total energy spectrum
CMS_2017_I1511284 13000 n/a - n/a
η Distributions
ALICE_2010_I852264 [900..7000] 22* -21 1.5
ATLAS_2010_I849050 900 2.9 -2.8 0.13
CDF_1990_I283352 [630..1800] 2.7* +1.9 4.6*
CMS_2015_I1384119 13000 n/a - n/a
TOTEM_2012_I1115294 7000 6.4 +2.2 8.6
UA5_1982_I176647 53 4.4 -2.3 2.1
UA5_1986_I233599 [200..900] 5.2 +4.7 9.9
Identified Particles : Ratios
η/π0 vs pT
ALICE_2012_I1116147 7000 n/a - n/a
Rapidity gap size
ATLAS_2012_I1084540 7000 14 +1.0 15
Identified Particles : pT
η
ALICE_2012_I1116147 7000 0.57 +0.12 0.69
FB Correlations
b(Nch) vs Δη
UA5_1988_I263399 [200..900] 28 -19 9.2
FB Correlations
b(Nch) vs ηC
UA5_1988_I263399 [200..900] 14 +15 29
Jet pT
CMS_2013_I1261026 7000 2.8* - n/a
STAR_2006_I723509 200 2.2* -1.6 0.61*
Jet Shapes
Differential Jet Shape
CMS_2013_I1261026 7000 2.1 -1.8 0.32
Diffraction
ξ
ATLAS_2019_I1762584 8000 n/a - n/a
n.E
LHCF_2020_I1783943 13000 n/a - n/a
n.avgk
LHCF_2020_I1783943 13000 n/a - n/a
n.eflow
LHCF_2020_I1783943 13000 n/a - n/a
n.k
LHCF_2020_I1783943 13000 n/a - n/a
Multiplicity Distributions
ALICE_2010_I852264 7000 n/a - 2.9
ALICE_2010_I852450 [900..2360] 25* -21 3.6
ATLAS_2010_I849050 900 n/a - 0.67
CDF_2002_I567774 [630..1800] n/a - 7.9*
CDF_2009_NOTE_9936 1960 n/a - n/a
STAR_2008_I793126 200 n/a - n/a
UA1_1990_I280412 [200..900] 21* -6.0 15*
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 59* -56 3.2
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 200 100 +20 120
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] 2.2 -0.60 1.6
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 18 +9.0 27
Identified Particles : Ratios
(pbar+p)/(K-+K+) vs |y|
LHCB_2012_I1119400 [900..7000] 8.4 -4.4 4.0
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 3.1 +2.2 5.3
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 2.4 +5.4 7.8
phi2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
φ
ALICE_2011_I881474 900 3.0 -0.10 2.9
ALICE_2020_I1797443 13000 n/a - n/a
ATLAS_2014_I1282441 7000 0.69 +1.6 2.3
LHCB_2011_I919315 7000 1.7 +7.3 9.0
Identified Particles : Y
φ
ATLAS_2014_I1282441 7000 0.17 +1.4 1.6
LHCB_2011_I919315 7000 0.41 +7.9 8.3
Identified Particles : pT
π0
ALICE_2012_I1116147 [900..7000] 3.8* -2.1 1.7*
LHCF_2012_I1115479 7000 4.2 +7.8 12
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 +0.060 0.28
Identified Particles : pT
π-
ALICE_2011_I885104 900 5.0 -3.2 1.8
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 2.6 -0.10 2.5
Identified Particles : pT
π+
ALICE_2011_I885104 900 4.6 -2.8 1.8
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 2.6 +0.90 3.5
Identified Particles : pT
π+ + π-
ALICE_2015_I1357424 7000 10 -4.6 5.4
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
pbar
ALICE_2011_I885104 900 1.7 +2.8 4.5
Identified Particles : pT
p
ALICE_2011_I885104 900 1.7 +3.6 5.3
Identified Particles : pT
p + pbar
ALICE_2015_I1357424 7000 3.5 -0.40 3.1
ALICE_2020_I1797443 13000 n/a - n/a
pT Distributions
ALICE_2010_I860416 900 n/a - 4.9
ATLAS_2010_I849050 900 n/a - 4.3
CDF_1988_I263320 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 23* -1.0 22*
<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 n/a - n/a
Diffraction
|t|
ATLAS_2019_I1762584 8000 n/a - n/a
sqrts.xsec
ALICE_2012_I1181770 900:2760:7000 n/a - n/a
Σ(ET)
ATLAS_2012_I1183818 7000 130 -71 59
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 70* -35 35*
Σ(ET) vs Nch
UA1_1990_I280412 [200..900] 30* +4.0 34*
Diffractive ξ
CMS_2012_I1184941 7000 n/a - n/a
Cross sections
ATLAS_2011_I894867 7000 2.4 0 2.4
CMS_2012_I1193338 7000 0.77 -0.070 0.70

* 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.