Generator / tune

Details for Pythia 6.427 364 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 4.8 - n/a
ALICE_2022_I1868463 13000 20 - n/a
LHCB_2013_I1218996 7000 12 +1.0 13
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 3.8 +0.90 4.7
LHCB_2013_I1218996 7000 4.7 0 4.7
Identified Particles : σ
D+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D+/D0 vs pT
ALICE_2017_I1511870 7000 0.69 -0.060 0.63
Identified Particles : pT
Ds+
ALICE_2017_I1511870 7000 0.37 +0.73 1.1
LHCB_2013_I1218996 7000 3.3 -1.4 1.9
Identified Particles : σ
Ds+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
Ds+/D0 vs pT
ALICE_2017_I1511870 7000 1.5 -0.30 1.2
Identified Particles : Ratios
Ds+/D+ vs pT
ALICE_2017_I1511870 7000 2.3 -0.60 1.7
Identified Particles : pT
D*+
ALICE_2017_I1511870 7000 2.5 +1.4 3.9
LHCB_2013_I1218996 7000 14 +7.0 21
Identified Particles : σ
D*+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D*+/D0 vs pT
ALICE_2017_I1511870 7000 2.0 -1.1 0.94
K0S2pippim_pt
ALICE_2020_I1797443 13000 14 - n/a
Identified Particles : pT
K0S
ALICE_2011_I881474 900 16 0 16
ALICE_2020_I1797443 13000 25 - n/a
LHCB_2010_I865584 900 6.6 +0.30 6.9
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
K-/K+ vs |y|
LHCB_2012_I1119400 [900..7000] 1.2 +0.20 1.4
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 14 -1.0 13
ALICE_2020_I1797443 13000 6.5 - n/a
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 17 0 17
Identified Particles : pT
K-
ALICE_2011_I885104 900 7.9 0 7.9
STAR_2006_I722757 200 9.8 -2.5 7.3
STAR_2008_I793126 200 2.5 +0.50 3.0
Identified Particles : pT
K+
ALICE_2011_I885104 900 7.8 -1.8 6.0
STAR_2006_I722757 200 4.9 +1.6 6.5
STAR_2008_I793126 200 2.3 -0.100 2.2
Identified Particles : pT
K+ + K-
ALICE_2015_I1357424 7000 15 -1.0 14
ALICE_2020_I1797443 13000 11 - n/a
Kst0Kst0b2pippim_pt
ALICE_2020_I1797443 13000 6.9 - n/a
Kst0Kst0b_pt
ALICE_2020_I1797443 13000 4.8 - n/a
Identified Particles : Ratios
Λ/K0S vs pT
ALICE_2011_I881474 900 89 +1.0 90
ALICE_2020_I1797443 13000 26 - n/a
LLbar_pt
ALICE_2020_I1797443 13000 110 - n/a
Identified Particles : pT
Λ
ALICE_2011_I881474 900 46 -1.0 45
STAR_2006_I722757 200 n/a - n/a
Identified Particles : pT
Λc+
ALICE_2022_I1868463 13000 14 - n/a
LHCB_2013_I1218996 7000 67 +43 110
Identified Particles : Ratios
Λc+/D0 vs pT
ALICE_2022_I1868463 13000 31 - n/a
Identified Particles : Ratios
Λc+ from Σc0,+,++/Λc+ vs pT
ALICE_2022_I1868463 13000 5.2 - n/a
Identified Particles : Ratios
Λbar/K0S vs pT
LHCB_2011_I917009 [900..7000] 15 +2.0 17
Identified Particles : Ratios
Λbar/K0S vs |y|
LHCB_2011_I917009 [900..7000] 12 +1.0 13
Identified Particles : Ratios
Λbar/K0S vs |Δy|
LHCB_2011_I917009 [900..7000] 13 0 13
Identified Particles : Ratios
Λbar/Λ vs pT
LHCB_2011_I917009 [900..7000] 2.2 -0.40 1.8
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
Λbar/Λ vs |y|
LHCB_2011_I917009 [900..7000] 3.1 -0.90 2.2
Identified Particles : Ratios
Λbar/Λ vs |Δy|
LHCB_2011_I917009 [900..7000] 4.7 -1.6 3.1
Identified Particles : pT
Λbar
ALICE_2011_I881474 900 34 -2.0 32
STAR_2006_I722757 200 n/a - n/a
Omega2phi_pt
ALICE_2020_I1797443 13000 28 - n/a
Omegapm_pt
ALICE_2020_I1797443 13000 84 - n/a
Identified Particles : pT
Σbar(1385)-
ALICE_2014_I1300380 7000 18 -1.0 17
Identified Particles : pT
Σbar(1385)+
ALICE_2014_I1300380 7000 13 -1.0 12
Identified Particles : pT
Σ(1385)-
ALICE_2014_I1300380 7000 19 0 19
Identified Particles : pT
Σ(1385)+
ALICE_2014_I1300380 7000 15 +4.0 19
Identified Particles : pT
Σc0,+,++
ALICE_2022_I1868463 13000 8.2 - n/a
Identified Particles : Ratios
Σc0,+,++/D0 vs pT
ALICE_2022_I1868463 13000 15 - n/a
Identified Particles : pT
Ξ(1530)
ALICE_2014_I1300380 7000 n/a - 30
Xi2phi_pt
ALICE_2020_I1797443 13000 9.8 - n/a
Identified Particles : pT
Ξ
ALICE_2011_I881474 900 13 0 13
ALICE_2020_I1797443 13000 120 - 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 +0.100 1.7
<pT> vs Nch
ALICE_2010_I860416 900 0.24* 0 0.24*
ATLAS_2010_I849050 900 0.12 - n/a
CDF_2002_I567774 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
CMS_2013_I1261026 7000 1.4 -0.40 1.0
UA1_1990_I280412 [63..900] 4.0* -0.30 3.7*
Identified Particles : σ
ccbar
ALICE_2017_I1511870 7000 n/a - n/a
Energy flow
LHCB_2013_I1208105 7000 100 -11 89
Forward energy flow ratio
CMS_2013_I1218372 [900..7000] 0.97* +0.030 1.00*
EM energy spectrum
CMS_2017_I1511284 13000 580 - n/a
Hadronic energy spectrum
CMS_2017_I1511284 13000 200 - n/a
Total energy spectrum
CMS_2017_I1511284 13000 540 - n/a
η Distributions
ALICE_2010_I852264 [900..7000] 18 -4.0 14*
ATLAS_2010_I849050 900 1.7 -0.20 1.5
CDF_1990_I283352 [630..1800] n/a - n/a
CMS_2015_I1384119 13000 34 - n/a
TOTEM_2012_I1115294 7000 17 0 17
UA5_1982_I176647 53 2.0 +0.10 2.1
UA5_1986_I233599 [200..900] 15 -1.0 14
Identified Particles : Ratios
η/π0 vs pT
ALICE_2012_I1116147 7000 n/a - n/a
Rapidity gap size
ATLAS_2012_I1084540 7000 24 -1.0 23
Identified Particles : pT
η
ALICE_2012_I1116147 7000 0.75 +0.25 1.0
FB Correlations
b(Nch) vs Δη
UA5_1988_I263399 [200..900] 5.9 +0.80 6.7
FB Correlations
b(Nch) vs ηC
UA5_1988_I263399 [200..900] 19 +2.0 21
Jet pT
CMS_2013_I1261026 7000 n/a - n/a
STAR_2006_I723509 200 6.1* -2.9 3.2*
Jet Shapes
Differential Jet Shape
CMS_2013_I1261026 7000 0.60 -0.19 0.41
Diffraction
ξ
ATLAS_2019_I1762584 8000 n/a - n/a
n.E
LHCF_2020_I1783943 13000 42 - n/a
n.avgk
LHCF_2020_I1783943 13000 1.6 - n/a
n.eflow
LHCF_2020_I1783943 13000 55 - n/a
n.k
LHCF_2020_I1783943 13000 810 - n/a
Multiplicity Distributions
ALICE_2010_I852264 7000 37 - n/a
ALICE_2010_I852450 [900..2360] 17 -3.0 14*
ATLAS_2010_I849050 900 1.6 - n/a
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] 20* +2.0 22*
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 14 +9.0 23*
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 98 0 98
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] 1.2 0 1.2
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 19 +4.0 23
Identified Particles : Ratios
(pbar+p)/(K-+K+) vs |y|
LHCB_2012_I1119400 [900..7000] 2.3 -0.30 2.0
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 7.9 +0.60 8.5
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 12 0 12
phi2pippim_pt
ALICE_2020_I1797443 13000 24 - n/a
Identified Particles : pT
φ
ALICE_2011_I881474 900 3.8 -0.100 3.7
ALICE_2020_I1797443 13000 32 - n/a
ATLAS_2014_I1282441 7000 5.2 +0.60 5.8
LHCB_2011_I919315 7000 17 -1.0 16
Identified Particles : Y
φ
ATLAS_2014_I1282441 7000 3.5 +0.30 3.8
LHCB_2011_I919315 7000 19 -2.0 17
Identified Particles : pT
π0
ALICE_2012_I1116147 [900..7000] 1.0* +0.30 1.3*
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] 0.33 -0.16 0.17
Identified Particles : pT
π-
ALICE_2011_I885104 900 4.1 -0.70 3.4
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 3.3 +1.7 5.0
Identified Particles : pT
π+
ALICE_2011_I885104 900 3.8 -0.40 3.4
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 4.4 -0.20 4.2
Identified Particles : pT
π+ + π-
ALICE_2015_I1357424 7000 6.3 -1.0 5.3
ALICE_2020_I1797443 13000 5.8 - n/a
Identified Particles : pT
pbar
ALICE_2011_I885104 900 7.1 -0.60 6.5
Identified Particles : pT
p
ALICE_2011_I885104 900 6.4 -0.80 5.6
Identified Particles : pT
p + pbar
ALICE_2015_I1357424 7000 5.9 +0.40 6.3
ALICE_2020_I1797443 13000 n/a - n/a
pT Distributions
ALICE_2010_I860416 900 4.9 +0.40 5.3
ATLAS_2010_I849050 900 1.9 - n/a
CDF_1988_I263320 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 26* -3.0 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 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 490 +50 540
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 68* -24 44*
Σ(ET) vs Nch
UA1_1990_I280412 [200..900] 30* 0 30*
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 0.83 +0.020 0.85

* 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.