Generator / tune

Details for Pythia 6.426 dw 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 n/a - n/a
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 100 +20 120
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 74* -18 56
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 1.7 +0.50 2.2
LHCB_2013_I1218996 7000 9.5 -5.3 4.2
Identified Particles : σ
Ds+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
Ds+/D0 vs pT
ALICE_2017_I1511870 7000 0.18 +0.69 0.87
Identified Particles : Ratios
Ds+/D+ vs pT
ALICE_2017_I1511870 7000 0.29 +0.71 1.0
Identified Particles : pT
D*+
ALICE_2017_I1511870 7000 6.0 - n/a
LHCB_2013_I1218996 7000 34 +1.0 35
Identified Particles : σ
D*+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D*+/D0 vs pT
ALICE_2017_I1511870 7000 0.81 - n/a
K0S2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
K0S
ALICE_2011_I881474 900 13 0 13
ALICE_2020_I1797443 13000 n/a - n/a
LHCB_2010_I865584 900 3.2 0 3.2
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
K-/K+ vs |y|
LHCB_2012_I1119400 [900..7000] 1.4 +0.10 1.5
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 8.9 -1.2 7.7
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 7.1 +0.10 7.2
Identified Particles : pT
K-
ALICE_2011_I885104 900 5.2 +0.60 5.8
STAR_2006_I722757 200 8.0 -1.7 6.3
STAR_2008_I793126 200 1.6 +0.80 2.4
Identified Particles : pT
K+
ALICE_2011_I885104 900 5.0 +0.30 5.3
STAR_2006_I722757 200 7.1 -1.1 6.0
STAR_2008_I793126 200 3.7 -0.30 3.4
Identified Particles : pT
K+ + K-
ALICE_2015_I1357424 7000 14 0 14
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 38 -9.0 29
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 28 -2.0 26
STAR_2006_I722757 200 n/a - n/a
Identified Particles : pT
Λc+
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 210 +70 280
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 -0.30 4.6
Identified Particles : Ratios
Λbar/K0S vs |y|
LHCB_2011_I917009 [900..7000] 4.4 -0.10 4.3
Identified Particles : Ratios
Λbar/K0S vs |Δy|
LHCB_2011_I917009 [900..7000] 5.7 -0.10 5.6
Identified Particles : Ratios
Λbar/Λ vs pT
LHCB_2011_I917009 [900..7000] 4.2 0 4.2
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
Λbar/Λ vs |y|
LHCB_2011_I917009 [900..7000] 4.6 +0.30 4.9
Identified Particles : Ratios
Λbar/Λ vs |Δy|
LHCB_2011_I917009 [900..7000] 6.2 +0.40 6.6
Identified Particles : pT
Λbar
ALICE_2011_I881474 900 18 -1.0 17
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 7.8 -0.90 6.9
Identified Particles : pT
Σbar(1385)+
ALICE_2014_I1300380 7000 7.3 -0.40 6.9
Identified Particles : pT
Σ(1385)-
ALICE_2014_I1300380 7000 8.9 +0.30 9.2
Identified Particles : pT
Σ(1385)+
ALICE_2014_I1300380 7000 8.5 -0.50 8.0
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 25 - n/a
Xi2phi_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
Ξ
ALICE_2011_I881474 900 9.7 -0.70 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 1.6 +1.3 2.9
<pT> vs Nch
ALICE_2010_I860416 900 2.1* -0.50 1.6*
ATLAS_2010_I849050 900 0.51 +0.010 0.52
CDF_2002_I567774 [630..1800] n/a - 1.1*
CDF_2009_I817466 1960 n/a - n/a
CMS_2013_I1261026 7000 3.7 +0.100 3.8
UA1_1990_I280412 [63..900] 5.3* -0.100 5.2*
Identified Particles : σ
ccbar
ALICE_2017_I1511870 7000 n/a - n/a
Energy flow
LHCB_2013_I1208105 7000 63 -1.0 62
Forward energy flow ratio
CMS_2013_I1218372 [900..7000] 6.1* -0.40 5.7*
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] 25* 0 25*
ATLAS_2010_I849050 900 2.1 +0.10 2.2
CDF_1990_I283352 [630..1800] n/a - 2.6*
CMS_2015_I1384119 13000 n/a - n/a
TOTEM_2012_I1115294 7000 3.9 +0.10 4.0
UA5_1982_I176647 53 4.6 -0.100 4.5
UA5_1986_I233599 [200..900] 4.9 0 4.9
Identified Particles : Ratios
η/π0 vs pT
ALICE_2012_I1116147 7000 n/a - n/a
Rapidity gap size
ATLAS_2012_I1084540 7000 11 +1.0 12
Identified Particles : pT
η
ALICE_2012_I1116147 7000 0.60 -0.010 0.59
FB Correlations
b(Nch) vs Δη
UA5_1988_I263399 [200..900] 34 -1.0 33
FB Correlations
b(Nch) vs ηC
UA5_1988_I263399 [200..900] 13 0 13
Jet pT
CMS_2013_I1261026 7000 n/a - 3.5*
STAR_2006_I723509 200 8.7* +1.3 10*
Jet Shapes
Differential Jet Shape
CMS_2013_I1261026 7000 3.0 +1.1 4.1
Diffraction
ξ
ATLAS_2019_I1762584 8000 89 - 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 - n/a
ALICE_2010_I852450 [900..2360] 35* +4.0 39*
ATLAS_2010_I849050 900 1.9 0 1.9
CDF_2002_I567774 [630..1800] n/a - 8.1*
CDF_2009_NOTE_9936 1960 n/a - n/a
STAR_2008_I793126 200 n/a - n/a
UA1_1990_I280412 [200..900] 25* +5.0 30*
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 74* -5.0 69*
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 85 -17 68
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] 2.7 +0.40 3.1
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 18 0 18
Identified Particles : Ratios
(pbar+p)/(K-+K+) vs |y|
LHCB_2012_I1119400 [900..7000] 8.0 +1.0 9.0
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 3.3 +1.4 4.7
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 2.3 +0.30 2.6
phi2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
φ
ALICE_2011_I881474 900 4.3 -1.4 2.9
ALICE_2020_I1797443 13000 n/a - n/a
ATLAS_2014_I1282441 7000 0.83 -0.34 0.49
LHCB_2011_I919315 7000 1.6 -0.50 1.1
Identified Particles : Y
φ
ATLAS_2014_I1282441 7000 0.72 -0.26 0.46
LHCB_2011_I919315 7000 1.6 -0.40 1.2
Identified Particles : pT
π0
ALICE_2012_I1116147 [900..7000] 3.2* -0.10 3.1*
LHCF_2012_I1115479 7000 3.4 -0.10 3.3*
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] 0.28 -0.070 0.21
Identified Particles : pT
π-
ALICE_2011_I885104 900 5.0 +0.30 5.3
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 2.1 +1.5 3.6
Identified Particles : pT
π+
ALICE_2011_I885104 900 5.0 0 5.0
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 2.2 +0.100 2.3
Identified Particles : pT
π+ + π-
ALICE_2015_I1357424 7000 12 0 12
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
pbar
ALICE_2011_I885104 900 1.1 -0.15 0.95
Identified Particles : pT
p
ALICE_2011_I885104 900 1.0 +0.20 1.2
Identified Particles : pT
p + pbar
ALICE_2015_I1357424 7000 5.0 +0.80 5.8
ALICE_2020_I1797443 13000 n/a - n/a
pT Distributions
ALICE_2010_I860416 900 n/a - 7.9
ATLAS_2010_I849050 900 n/a - 3.6
CDF_1988_I263320 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 16* +6.0 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 88 - n/a
Diffraction
|t|
ATLAS_2019_I1762584 8000 80 - n/a
sqrts.xsec
ALICE_2012_I1181770 900:2760:7000 n/a - n/a
Σ(ET)
ATLAS_2012_I1183818 7000 99 -2.0 97
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 51* +1.0 52*
Σ(ET) vs Nch
UA1_1990_I280412 [200..900] 27* +1.0 28*
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 +0.010 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.