Generator / tune

Details for Pythia 6.427 347 vs. 6.428

pp/ppbar → Soft QCD (inelastic)


Observable Reference Energy χ2+5% (6.427) Δ χ2+5% (6.428)
Identified Particles : pT
D0
ALICE_2017_I1511870 7000 n/a - n/a
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 16 0 16
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 n/a - 5.7
LHCB_2013_I1218996 7000 15 +1.0 16
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 - 0.43
Identified Particles : pT
Ds+
ALICE_2017_I1511870 7000 n/a - 1.6
LHCB_2013_I1218996 7000 8.2 -3.6 4.6*
Identified Particles : σ
Ds+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
Ds+/D0 vs pT
ALICE_2017_I1511870 7000 n/a - 0.53
Identified Particles : Ratios
Ds+/D+ vs pT
ALICE_2017_I1511870 7000 n/a - 0.86
Identified Particles : pT
D*+
ALICE_2017_I1511870 7000 n/a - 3.0
LHCB_2013_I1218996 7000 5.1* +3.1 8.2
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 - 0.52
K0S2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
K0S
ALICE_2011_I881474 900 1.8 -0.82 0.98
ALICE_2020_I1797443 13000 n/a - n/a
LHCB_2010_I865584 900 4.3 -0.100 4.2
STAR_2006_I722757 200 2.5 - n/a
Identified Particles : Ratios
K-/K+ vs |y|
LHCB_2012_I1119400 [900..7000] 1.1 +0.100 1.2
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 5.4 -0.50 4.9
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 6.6 +0.70 7.3
Identified Particles : pT
K-
ALICE_2011_I885104 900 1.2 -0.22 0.98
STAR_2006_I722757 200 3.3 +0.10 3.4
STAR_2008_I793126 200 3.8 -0.30 3.5
Identified Particles : pT
K+
ALICE_2011_I885104 900 1.3 -0.55 0.75
STAR_2006_I722757 200 4.9 +1.7 6.6
STAR_2008_I793126 200 4.2 -1.9 2.3
Identified Particles : pT
K+ + K-
ALICE_2015_I1357424 7000 1.2 +0.10 1.3
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 900 140 +10 150
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 -2.0 29
STAR_2006_I722757 200 n/a - n/a
Identified Particles : pT
Λc+
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 43 +9.0 52
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] 20 +1.0 21
Identified Particles : Ratios
Λbar/K0S vs |y|
LHCB_2011_I917009 [900..7000] 16 +1.0 17
Identified Particles : Ratios
Λbar/K0S vs |Δy|
LHCB_2011_I917009 [900..7000] 16 +1.0 17
Identified Particles : Ratios
Λbar/Λ vs pT
LHCB_2011_I917009 [900..7000] 2.3 0 2.3
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
Λbar/Λ vs |y|
LHCB_2011_I917009 [900..7000] 3.4 -1.0 2.4
Identified Particles : Ratios
Λbar/Λ vs |Δy|
LHCB_2011_I917009 [900..7000] 4.6 -1.4 3.2
Identified Particles : pT
Λbar
ALICE_2011_I881474 900 24 -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 12 - n/a
Identified Particles : pT
Σbar(1385)+
ALICE_2014_I1300380 7000 n/a - n/a
Identified Particles : pT
Σ(1385)-
ALICE_2014_I1300380 7000 13 +2.0 15
Identified Particles : pT
Σ(1385)+
ALICE_2014_I1300380 7000 12 0 12
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 9.9 -0.90 9.0
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 0.37 -0.24 0.13
<pT> vs Nch
ALICE_2010_I860416 900 0.55* -0.12 0.43*
ATLAS_2010_I849050 900 0.17 -0.079 0.091
CDF_2002_I567774 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
CMS_2013_I1261026 7000 0.55 -0.080 0.47
UA1_1990_I280412 [63..900] 6.6* -0.80 5.8*
Identified Particles : σ
ccbar
ALICE_2017_I1511870 7000 n/a - n/a
Energy flow
LHCB_2013_I1208105 7000 89 +8.0 97
Forward energy flow ratio
CMS_2013_I1218372 [900..7000] 0.25* -0.020 0.23*
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] 2.0* -1.1 0.93*
ATLAS_2010_I849050 900 0.57 +0.63 1.2
CDF_1990_I283352 [630..1800] n/a - n/a
CMS_2015_I1384119 13000 n/a - n/a
TOTEM_2012_I1115294 7000 5.7 +0.40 6.1
UA5_1982_I176647 53 4.0 -0.50 3.5
UA5_1986_I233599 [200..900] 16 -1.0 15
Identified Particles : Ratios
η/π0 vs pT
ALICE_2012_I1116147 7000 n/a - n/a
Rapidity gap size
ATLAS_2012_I1084540 7000 26 -1.0 25
Identified Particles : pT
η
ALICE_2012_I1116147 7000 1.0 +0.10 1.1
FB Correlations
b(Nch) vs Δη
UA5_1988_I263399 [200..900] 5.0 -1.4 3.6
FB Correlations
b(Nch) vs ηC
UA5_1988_I263399 [200..900] 14 +1.0 15
Jet pT
CMS_2013_I1261026 7000 n/a - n/a
STAR_2006_I723509 200 15* -4.0 11*
Jet Shapes
Differential Jet Shape
CMS_2013_I1261026 7000 0.76 +0.040 0.80
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 5.1 -1.5 3.6
ALICE_2010_I852450 [900..2360] 6.4* -2.4 4.0*
ATLAS_2010_I849050 900 1.3 +0.90 2.2
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] 11* -1.6 9.4*
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 3.3* +2.6 5.9*
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 76 +2.0 78
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 +0.20 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 29 -11 18
Identified Particles : Ratios
(pbar+p)/(K-+K+) vs |y|
LHCB_2012_I1119400 [900..7000] 2.2 -0.10 2.1
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 7.1 -1.0 6.1
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 10 0 10
phi2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
φ
ALICE_2011_I881474 900 0.43 -0.020 0.41
ALICE_2020_I1797443 13000 n/a - n/a
ATLAS_2014_I1282441 7000 1.2 +0.10 1.3
LHCB_2011_I919315 7000 1.4 -0.44 0.96
Identified Particles : Y
φ
ATLAS_2014_I1282441 7000 0.83 +0.16 0.99
LHCB_2011_I919315 7000 1.3 -0.10 1.2
Identified Particles : pT
π0
ALICE_2012_I1116147 [900..7000] 0.54* +0.23 0.77*
LHCF_2012_I1115479 7000 7.1 +0.40 7.5
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] 0.12 +0.11 0.23
Identified Particles : pT
π-
ALICE_2011_I885104 900 4.1 -0.100 4.0
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 5.7 -0.10 5.6
Identified Particles : pT
π+
ALICE_2011_I885104 900 3.7 +0.30 4.0
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 5.0 +0.30 5.3
Identified Particles : pT
π+ + π-
ALICE_2015_I1357424 7000 4.4 0 4.4
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
pbar
ALICE_2011_I885104 900 3.4 -0.10 3.3
Identified Particles : pT
p
ALICE_2011_I885104 900 3.2 -0.50 2.7
Identified Particles : pT
p + pbar
ALICE_2015_I1357424 7000 1.5 -0.10 1.4
ALICE_2020_I1797443 13000 n/a - n/a
pT Distributions
ALICE_2010_I860416 900 1.2 +0.10 1.3
ATLAS_2010_I849050 900 n/a - 1.1
CDF_1988_I263320 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 24* -4.0 20*
<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 20 0 20
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 35* -2.0 33*
Σ(ET) vs Nch
UA1_1990_I280412 [200..900] 32* +1.0 33*
Diffractive ξ
CMS_2012_I1184941 7000 n/a - n/a
Cross sections
ATLAS_2011_I894867 7000 2.4 -0.10 2.3
CMS_2012_I1193338 7000 0.70 +0.010 0.71

* 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.