Generator / tune

Details for Pythia 6.426 358 vs. 6.427

pp/ppbar → Soft QCD (inelastic)


Observable Reference Energy χ2+5% (6.426) Δ χ2+5% (6.427)
Identified Particles : pT
D0
ALICE_2017_I1511870 7000 3.0 -0.10 2.9
ALICE_2022_I1868463 13000 n/a - 8.5
LHCB_2013_I1218996 7000 6.1 -0.30 5.8
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 - 2.6
LHCB_2013_I1218996 7000 7.2 -0.20 7.0
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 - 0.51
Identified Particles : pT
Ds+
ALICE_2017_I1511870 7000 0.25 +0.060 0.31
LHCB_2013_I1218996 7000 3.8* -1.0 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 -0.37 0.83
Identified Particles : Ratios
Ds+/D+ vs pT
ALICE_2017_I1511870 7000 1.4 +0.10 1.5
Identified Particles : pT
D*+
ALICE_2017_I1511870 7000 1.4 - n/a
LHCB_2013_I1218996 7000 3.5 +0.80 4.3
Identified Particles : σ
D*+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D*+/D0 vs pT
ALICE_2017_I1511870 7000 0.35 - n/a
K0S2pippim_pt
ALICE_2020_I1797443 13000 n/a - 14
Identified Particles : pT
K0S
ALICE_2011_I881474 900 5.0 -0.20 4.8
ALICE_2020_I1797443 13000 n/a - 4.9
LHCB_2010_I865584 900 5.2 -0.10 5.1
STAR_2006_I722757 200 n/a - 7.5
Identified Particles : Ratios
K-/K+ vs |y|
LHCB_2012_I1119400 [900..7000] 0.95 +0.050 1.0
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 13 +1.0 14
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 15 +2.0 17
Identified Particles : pT
K-
ALICE_2011_I885104 900 1.8 +0.70 2.5
STAR_2006_I722757 200 12 0 12
STAR_2008_I793126 200 3.2 -0.30 2.9
Identified Particles : pT
K+
ALICE_2011_I885104 900 2.1 0 2.1
STAR_2006_I722757 200 13 -2.0 11
STAR_2008_I793126 200 2.5 +1.3 3.8
Identified Particles : pT
K+ + K-
ALICE_2015_I1357424 7000 3.2 0 3.2
ALICE_2020_I1797443 13000 n/a - n/a
Kst0Kst0b2pippim_pt
ALICE_2020_I1797443 13000 n/a - 6.1
Kst0Kst0b_pt
ALICE_2020_I1797443 13000 n/a - 2.2
Identified Particles : Ratios
Λ/K0S vs pT
ALICE_2011_I881474 900 40 +1.0 41
ALICE_2020_I1797443 13000 n/a - 13
LLbar_pt
ALICE_2020_I1797443 13000 n/a - 39
Identified Particles : pT
Λ
ALICE_2011_I881474 900 23 -1.0 22
STAR_2006_I722757 200 n/a - n/a
Identified Particles : pT
Λc+
ALICE_2022_I1868463 13000 n/a - 10
LHCB_2013_I1218996 7000 47 +6.0 53
Identified Particles : Ratios
Λc+/D0 vs pT
ALICE_2022_I1868463 13000 n/a - 25
Identified Particles : Ratios
Λc+ from Σc0,+,++/Λc+ vs pT
ALICE_2022_I1868463 13000 n/a - 3.1
Identified Particles : Ratios
Λbar/K0S vs pT
LHCB_2011_I917009 [900..7000] 6.9 +1.1 8.0
Identified Particles : Ratios
Λbar/K0S vs |y|
LHCB_2011_I917009 [900..7000] 5.5 +0.60 6.1
Identified Particles : Ratios
Λbar/K0S vs |Δy|
LHCB_2011_I917009 [900..7000] 4.3 +0.70 5.0
Identified Particles : Ratios
Λbar/Λ vs pT
LHCB_2011_I917009 [900..7000] 1.5 -0.10 1.4
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
Λbar/Λ vs |y|
LHCB_2011_I917009 [900..7000] 2.7 -0.60 2.1
Identified Particles : Ratios
Λbar/Λ vs |Δy|
LHCB_2011_I917009 [900..7000] 3.7 -0.90 2.8
Identified Particles : pT
Λbar
ALICE_2011_I881474 900 16 0 16
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 5.7 +0.100 5.8
Identified Particles : pT
Σbar(1385)+
ALICE_2014_I1300380 7000 5.6 +0.90 6.5
Identified Particles : pT
Σ(1385)-
ALICE_2014_I1300380 7000 8.6 +0.40 9.0
Identified Particles : pT
Σ(1385)+
ALICE_2014_I1300380 7000 n/a - 6.1
Identified Particles : pT
Σc0,+,++
ALICE_2022_I1868463 13000 n/a - 4.9
Identified Particles : Ratios
Σc0,+,++/D0 vs pT
ALICE_2022_I1868463 13000 n/a - 12
Identified Particles : pT
Ξ(1530)
ALICE_2014_I1300380 7000 n/a - 17
Xi2phi_pt
ALICE_2020_I1797443 13000 n/a - 7.3
Identified Particles : pT
Ξ
ALICE_2011_I881474 900 6.5 -0.30 6.2
ALICE_2020_I1797443 13000 n/a - 59
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 0.28 -0.18 0.100
<pT> vs Nch
ALICE_2010_I860416 900 0.44 +0.22 0.66*
ATLAS_2010_I849050 900 0.78 +0.020 0.80
CDF_2002_I567774 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
CMS_2013_I1261026 7000 0.11 0 0.11
UA1_1990_I280412 [63..900] 1.3* 0 1.3*
Identified Particles : σ
ccbar
ALICE_2017_I1511870 7000 n/a - n/a
Energy flow
LHCB_2013_I1208105 7000 59 -4.0 55
Forward energy flow ratio
CMS_2013_I1218372 [900..7000] 0.30* +0.57 0.87*
EM energy spectrum
CMS_2017_I1511284 13000 n/a - 170
Hadronic energy spectrum
CMS_2017_I1511284 13000 n/a - 18
Total energy spectrum
CMS_2017_I1511284 13000 n/a - 95
η Distributions
ALICE_2010_I852264 [900..7000] 0.42* +0.030 0.45*
ATLAS_2010_I849050 900 3.9 +0.20 4.1
CDF_1990_I283352 [630..1800] n/a - n/a
CMS_2015_I1384119 13000 n/a - 1.9
TOTEM_2012_I1115294 7000 8.7 0 8.7
UA5_1982_I176647 53 8.3 -0.10 8.2
UA5_1986_I233599 [200..900] 3.0 0 3.0
Identified Particles : Ratios
η/π0 vs pT
ALICE_2012_I1116147 7000 n/a - n/a
Rapidity gap size
ATLAS_2012_I1084540 7000 15 0 15
Identified Particles : pT
η
ALICE_2012_I1116147 7000 0.95 -0.15 0.80
FB Correlations
b(Nch) vs Δη
UA5_1988_I263399 [200..900] 46 -1.0 45
FB Correlations
b(Nch) vs ηC
UA5_1988_I263399 [200..900] 75 -1.0 74
Jet pT
CMS_2013_I1261026 7000 n/a - n/a
STAR_2006_I723509 200 15* +4.0 19*
Jet Shapes
Differential Jet Shape
CMS_2013_I1261026 7000 0.45 +0.20 0.65
Diffraction
ξ
ATLAS_2019_I1762584 8000 n/a - 87
n.E
LHCF_2020_I1783943 13000 n/a - 35
n.avgk
LHCF_2020_I1783943 13000 n/a - 0.15
n.eflow
LHCF_2020_I1783943 13000 n/a - 26
n.k
LHCF_2020_I1783943 13000 n/a - 140
Multiplicity Distributions
ALICE_2010_I852264 7000 3.1 -0.40 2.7
ALICE_2010_I852450 [900..2360] 5.5* +0.80 6.3*
ATLAS_2010_I849050 900 12 +1.0 13
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] 49* -1.0 48*
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 3.5* -0.20 3.3*
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 200 150 -30 120
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] 1.7 +0.40 2.1
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 36 -10 26
Identified Particles : Ratios
(pbar+p)/(K-+K+) vs |y|
LHCB_2012_I1119400 [900..7000] 4.1 +0.60 4.7
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 5.0 -0.100 4.9
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 7.8 -0.100 7.7
phi2pippim_pt
ALICE_2020_I1797443 13000 n/a - 23
Identified Particles : pT
φ
ALICE_2011_I881474 900 0.96 +1.1 2.1
ALICE_2020_I1797443 13000 n/a - 16
ATLAS_2014_I1282441 7000 2.0 +0.20 2.2
LHCB_2011_I919315 7000 8.2 +1.8 10
Identified Particles : Y
φ
ATLAS_2014_I1282441 7000 1.4 +0.10 1.5
LHCB_2011_I919315 7000 8.2 +1.2 9.4
Identified Particles : pT
π0
ALICE_2012_I1116147 [900..7000] 0.77* +0.33 1.1*
LHCF_2012_I1115479 7000 12 0 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] 0.20 +0.0100 0.21
Identified Particles : pT
π-
ALICE_2011_I885104 900 4.3 +0.40 4.7
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 4.7 -0.80 3.9
Identified Particles : pT
π+
ALICE_2011_I885104 900 4.3 0 4.3
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 3.9 +1.1 5.0
Identified Particles : pT
π+ + π-
ALICE_2015_I1357424 7000 5.5 -0.30 5.2
ALICE_2020_I1797443 13000 n/a - 7.1
Identified Particles : pT
pbar
ALICE_2011_I885104 900 3.8 -0.30 3.5
Identified Particles : pT
p
ALICE_2011_I885104 900 5.9 0 5.9
Identified Particles : pT
p + pbar
ALICE_2015_I1357424 7000 2.6 +0.20 2.8
ALICE_2020_I1797443 13000 n/a - n/a
pT Distributions
ALICE_2010_I860416 900 2.0 - n/a
ATLAS_2010_I849050 900 1.0 - n/a
CDF_1988_I263320 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 8.2* -0.100 8.1*
<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 - 59
Diffraction
|t|
ATLAS_2019_I1762584 8000 n/a - 68
sqrts.xsec
ALICE_2012_I1181770 900:2760:7000 n/a - n/a
Σ(ET)
ATLAS_2012_I1183818 7000 60 -1.0 59
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 56* 0 56*
Σ(ET) vs Nch
UA1_1990_I280412 [200..900] 37* 0 37*
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 0.70 +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.