Generator / tune

Details for Pythia 6.427 376 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 3.4 - n/a
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 8.8 +1.0 9.8
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 n/a - 4.6
LHCB_2013_I1218996 7000 9.4 -2.1 7.3
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 - 1.0
Identified Particles : pT
Ds+
ALICE_2017_I1511870 7000 0.87 -0.45 0.42
LHCB_2013_I1218996 7000 3.2 +2.3 5.5
Identified Particles : σ
Ds+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
Ds+/D0 vs pT
ALICE_2017_I1511870 7000 0.29 +0.26 0.55
Identified Particles : Ratios
Ds+/D+ vs pT
ALICE_2017_I1511870 7000 2.4 -0.80 1.6
Identified Particles : pT
D*+
ALICE_2017_I1511870 7000 n/a - 1.4
LHCB_2013_I1218996 7000 4.3 +1.8 6.1
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 - 0.62
K0S2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
K0S
ALICE_2011_I881474 900 10 +1.0 11
ALICE_2020_I1797443 13000 n/a - n/a
LHCB_2010_I865584 900 6.7 +0.20 6.9
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
K-/K+ vs |y|
LHCB_2012_I1119400 [900..7000] 1.2 -0.58 0.62
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 10 0 10
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 10 0 10
Identified Particles : pT
K-
ALICE_2011_I885104 900 4.7 -0.30 4.4
STAR_2006_I722757 200 16 +2.0 18
STAR_2008_I793126 200 2.8 -0.80 2.0
Identified Particles : pT
K+
ALICE_2011_I885104 900 4.4 -0.20 4.2
STAR_2006_I722757 200 14 -1.0 13
STAR_2008_I793126 200 2.8 -0.60 2.2
Identified Particles : pT
K+ + K-
ALICE_2015_I1357424 7000 2.2 +0.40 2.6
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 51 -5.0 46
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 34 -3.0 31
STAR_2006_I722757 200 n/a - n/a
Identified Particles : pT
Λc+
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 51 -6.0 45
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] 7.7 +0.100 7.8
Identified Particles : Ratios
Λbar/K0S vs |y|
LHCB_2011_I917009 [900..7000] 6.3 +0.10 6.4
Identified Particles : Ratios
Λbar/K0S vs |Δy|
LHCB_2011_I917009 [900..7000] 5.9 -0.10 5.8
Identified Particles : Ratios
Λbar/Λ vs pT
LHCB_2011_I917009 [900..7000] 1.3 +0.70 2.0
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
Λbar/Λ vs |y|
LHCB_2011_I917009 [900..7000] 2.2 +0.30 2.5
Identified Particles : Ratios
Λbar/Λ vs |Δy|
LHCB_2011_I917009 [900..7000] 2.9 +0.80 3.7
Identified Particles : pT
Λbar
ALICE_2011_I881474 900 23 +1.0 24
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 6.4 -0.60 5.8
Identified Particles : pT
Σbar(1385)+
ALICE_2014_I1300380 7000 6.0 -0.40 5.6
Identified Particles : pT
Σ(1385)-
ALICE_2014_I1300380 7000 5.5 +0.90 6.4
Identified Particles : pT
Σ(1385)+
ALICE_2014_I1300380 7000 7.1 -0.50 6.6
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 7.5 +1.1 8.6
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 0.20 -0.14 0.056
<pT> vs Nch
ALICE_2010_I860416 900 1.3* 0 1.3*
ATLAS_2010_I849050 900 0.49 +0.100 0.59
CDF_2002_I567774 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
CMS_2013_I1261026 7000 0.25 -0.080 0.17
UA1_1990_I280412 [63..900] 0.55* -0.060 0.49*
Identified Particles : σ
ccbar
ALICE_2017_I1511870 7000 n/a - n/a
Energy flow
LHCB_2013_I1208105 7000 86 -4.0 82
Forward energy flow ratio
CMS_2013_I1218372 [900..7000] 0.20 +0.15 0.35*
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] 0.70* -0.070 0.63*
ATLAS_2010_I849050 900 0.14 +0.060 0.20
CDF_1990_I283352 [630..1800] n/a - n/a
CMS_2015_I1384119 13000 n/a - n/a
TOTEM_2012_I1115294 7000 9.1 -0.100 9.0
UA5_1982_I176647 53 1.8 +0.100 1.9
UA5_1986_I233599 [200..900] 9.1 -0.20 8.9
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 1.5 -0.10 1.4
FB Correlations
b(Nch) vs Δη
UA5_1988_I263399 [200..900] 22 0 22
FB Correlations
b(Nch) vs ηC
UA5_1988_I263399 [200..900] 47 +3.0 50
Jet pT
CMS_2013_I1261026 7000 n/a - n/a
STAR_2006_I723509 200 3.1* -2.2 0.92*
Jet Shapes
Differential Jet Shape
CMS_2013_I1261026 7000 0.59 -0.050 0.54
Diffraction
ξ
ATLAS_2019_I1762584 8000 96 - 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 2.4 +0.10 2.5
ALICE_2010_I852450 [900..2360] 3.4* +0.10 3.5*
ATLAS_2010_I849050 900 2.3 -0.20 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] 17* +2.0 19*
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 2.8 +0.70 3.5*
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 200 120 +10 130
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] 1.9 -0.30 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 32 -4.0 28
Identified Particles : Ratios
(pbar+p)/(K-+K+) vs |y|
LHCB_2012_I1119400 [900..7000] 2.8 +0.30 3.1
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 5.7 -1.1 4.6
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 8.0 -0.80 7.2
phi2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
φ
ALICE_2011_I881474 900 1.9 +0.40 2.3
ALICE_2020_I1797443 13000 n/a - n/a
ATLAS_2014_I1282441 7000 1.7 +0.20 1.9
LHCB_2011_I919315 7000 6.1 -1.0 5.1
Identified Particles : Y
φ
ATLAS_2014_I1282441 7000 1.3 -0.10 1.2
LHCB_2011_I919315 7000 5.1 +0.50 5.6
Identified Particles : pT
π0
ALICE_2012_I1116147 [900..7000] 1.6* -0.10 1.5*
LHCF_2012_I1115479 7000 13 0 13
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] 0.26 +0.040 0.30
Identified Particles : pT
π-
ALICE_2011_I885104 900 0.98 -0.030 0.95
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 1.8 -0.60 1.2
Identified Particles : pT
π+
ALICE_2011_I885104 900 1.3 -0.30 1.0
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 1.5 +0.20 1.7
Identified Particles : pT
π+ + π-
ALICE_2015_I1357424 7000 4.8 0 4.8
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
pbar
ALICE_2011_I885104 900 6.4 -0.40 6.0
Identified Particles : pT
p
ALICE_2011_I885104 900 5.4 -0.30 5.1
Identified Particles : pT
p + pbar
ALICE_2015_I1357424 7000 2.4 +0.40 2.8
ALICE_2020_I1797443 13000 n/a - n/a
pT Distributions
ALICE_2010_I860416 900 3.8 +0.70 4.5
ATLAS_2010_I849050 900 2.2 - n/a
CDF_1988_I263320 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 24* -1.0 23*
<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 93 - n/a
Diffraction
|t|
ATLAS_2019_I1762584 8000 86 - n/a
sqrts.xsec
ALICE_2012_I1181770 900:2760:7000 n/a - n/a
Σ(ET)
ATLAS_2012_I1183818 7000 51 +1.0 52
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 34* -1.0 33*
Σ(ET) vs Nch
UA1_1990_I280412 [200..900] 41* -1.0 40*
Diffractive ξ
CMS_2012_I1184941 7000 n/a - n/a
Cross sections
ATLAS_2011_I894867 7000 2.4 +0.10 2.5
CMS_2012_I1193338 7000 0.76 +0.020 0.78

* 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.