Generator / tune

Details for Pythia 6.427 348 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 8.9 +2.1 11
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 - n/a
LHCB_2013_I1218996 7000 10* +1.0 11
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
Identified Particles : pT
Ds+
ALICE_2017_I1511870 7000 0.44 +0.38 0.82
LHCB_2013_I1218996 7000 4.1 +1.8 5.9
Identified Particles : σ
Ds+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
Ds+/D0 vs pT
ALICE_2017_I1511870 7000 0.97 +1.4 2.4
Identified Particles : Ratios
Ds+/D+ vs pT
ALICE_2017_I1511870 7000 1.9 -0.30 1.6
Identified Particles : pT
D*+
ALICE_2017_I1511870 7000 2.7 - n/a
LHCB_2013_I1218996 7000 4.6 +1.4 6.0
Identified Particles : σ
D*+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D*+/D0 vs pT
ALICE_2017_I1511870 7000 1.0 - n/a
K0S2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
K0S
ALICE_2011_I881474 900 4.6 -0.20 4.4
ALICE_2020_I1797443 13000 n/a - n/a
LHCB_2010_I865584 900 2.9 +0.10 3.0
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
K-/K+ vs |y|
LHCB_2012_I1119400 [900..7000] 0.97 +0.23 1.2
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 6.1 -0.70 5.4
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 8.8 -1.0 7.8
Identified Particles : pT
K-
ALICE_2011_I885104 900 2.4 -0.10 2.3
STAR_2006_I722757 200 9.0 +2.0 11
STAR_2008_I793126 200 3.6 -1.4 2.2
Identified Particles : pT
K+
ALICE_2011_I885104 900 3.0 -0.80 2.2
STAR_2006_I722757 200 8.8 +3.2 12
STAR_2008_I793126 200 2.2 +1.9 4.1
Identified Particles : pT
K+ + K-
ALICE_2015_I1357424 7000 2.5 -0.50 2.0
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 -10 130
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 40 -2.0 38
STAR_2006_I722757 200 n/a - n/a
Identified Particles : pT
Λc+
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 62 -5.0 57
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] 18 0 18
Identified Particles : Ratios
Λbar/K0S vs |y|
LHCB_2011_I917009 [900..7000] 14 +1.0 15
Identified Particles : Ratios
Λbar/K0S vs |Δy|
LHCB_2011_I917009 [900..7000] 15 0 15
Identified Particles : Ratios
Λbar/Λ vs pT
LHCB_2011_I917009 [900..7000] 0.62 +0.25 0.87
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
Λbar/Λ vs |y|
LHCB_2011_I917009 [900..7000] 1.6 -0.20 1.4
Identified Particles : Ratios
Λbar/Λ vs |Δy|
LHCB_2011_I917009 [900..7000] 1.8 -0.30 1.5
Identified Particles : pT
Λbar
ALICE_2011_I881474 900 25 0 25
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 16 -3.0 13
Identified Particles : pT
Σbar(1385)+
ALICE_2014_I1300380 7000 9.6 -0.70 8.9
Identified Particles : pT
Σ(1385)-
ALICE_2014_I1300380 7000 15 -2.0 13
Identified Particles : pT
Σ(1385)+
ALICE_2014_I1300380 7000 16 - n/a
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 12 -3.9 8.1
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 0.25 +0.20 0.45
<pT> vs Nch
ALICE_2010_I860416 900 0.65* +0.19 0.84*
ATLAS_2010_I849050 900 0.25 +0.11 0.36
CDF_2002_I567774 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
CMS_2013_I1261026 7000 0.76 +0.24 1.0
UA1_1990_I280412 [63..900] 2.7* -0.40 2.3*
Identified Particles : σ
ccbar
ALICE_2017_I1511870 7000 n/a - n/a
Energy flow
LHCB_2013_I1208105 7000 100 0 100
Forward energy flow ratio
CMS_2013_I1218372 [900..7000] 1.8* +0.30 2.1*
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] 3.5* -2.1 1.4*
ATLAS_2010_I849050 900 0.21 +0.35 0.56
CDF_1990_I283352 [630..1800] n/a - n/a
CMS_2015_I1384119 13000 n/a - n/a
TOTEM_2012_I1115294 7000 0.25 -0.050 0.20
UA5_1982_I176647 53 5.9 +0.50 6.4
UA5_1986_I233599 [200..900] 3.1 -0.50 2.6
Identified Particles : Ratios
η/π0 vs pT
ALICE_2012_I1116147 7000 n/a - n/a
Rapidity gap size
ATLAS_2012_I1084540 7000 18 +1.0 19
Identified Particles : pT
η
ALICE_2012_I1116147 7000 0.49 +0.14 0.63
FB Correlations
b(Nch) vs Δη
UA5_1988_I263399 [200..900] 50 -1.0 49
FB Correlations
b(Nch) vs ηC
UA5_1988_I263399 [200..900] 43 +2.0 45
Jet pT
CMS_2013_I1261026 7000 n/a - n/a
STAR_2006_I723509 200 14* -3.0 11*
Jet Shapes
Differential Jet Shape
CMS_2013_I1261026 7000 0.53 +0.20 0.73
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 12 -3.0 9.0
ALICE_2010_I852450 [900..2360] 6.1* -2.8 3.3*
ATLAS_2010_I849050 900 1.3 +0.80 2.1
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] 13* +3.0 16*
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 5.2* -1.0 4.2*
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 83 +17 100
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] 1.1 +0.30 1.4
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 27 0 27
Identified Particles : Ratios
(pbar+p)/(K-+K+) vs |y|
LHCB_2012_I1119400 [900..7000] 1.8 0 1.8
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 7.3 +0.30 7.6
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 9.4 -0.40 9.0
phi2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
φ
ALICE_2011_I881474 900 0.93 -0.040 0.89
ALICE_2020_I1797443 13000 n/a - n/a
ATLAS_2014_I1282441 7000 2.4 -0.80 1.6
LHCB_2011_I919315 7000 3.1 -0.70 2.4
Identified Particles : Y
φ
ATLAS_2014_I1282441 7000 1.8 -0.70 1.1
LHCB_2011_I919315 7000 2.9 -0.90 2.0
Identified Particles : pT
π0
ALICE_2012_I1116147 [900..7000] 0.99* +0.010 1.0*
LHCF_2012_I1115479 7000 4.2 -0.60 3.6
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 +0.010 0.23
Identified Particles : pT
π-
ALICE_2011_I885104 900 1.9 -0.60 1.3
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 2.9 +0.10 3.0
Identified Particles : pT
π+
ALICE_2011_I885104 900 1.9 -0.50 1.4
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 3.5 -0.60 2.9
Identified Particles : pT
π+ + π-
ALICE_2015_I1357424 7000 2.8 -0.30 2.5
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
pbar
ALICE_2011_I885104 900 5.5 -0.100 5.4
Identified Particles : pT
p
ALICE_2011_I885104 900 4.9 +0.100 5.0
Identified Particles : pT
p + pbar
ALICE_2015_I1357424 7000 2.4 +0.30 2.7
ALICE_2020_I1797443 13000 n/a - n/a
pT Distributions
ALICE_2010_I860416 900 n/a - 2.0
ATLAS_2010_I849050 900 n/a - n/a
CDF_1988_I263320 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 16* -3.0 13*
<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 15 -2.0 13
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 65* +4.0 69*
Σ(ET) vs Nch
UA1_1990_I280412 [200..900] 40* +3.0 43*
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 0.76 -0.030 0.73

* 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.