Generator / tune

Details for Pythia 6.426 z1 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 - 1.2
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 2.2 +1.2 3.4
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 0.66 - n/a
LHCB_2013_I1218996 7000 2.8 -0.80 2.0
Identified Particles : σ
D+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D+/D0 vs pT
ALICE_2017_I1511870 7000 1.5 - n/a
Identified Particles : pT
Ds+
ALICE_2017_I1511870 7000 1.1 -0.74 0.36
LHCB_2013_I1218996 7000 6.4* -1.0 5.4
Identified Particles : σ
Ds+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
Ds+/D0 vs pT
ALICE_2017_I1511870 7000 0.83 -0.78 0.051
Identified Particles : Ratios
Ds+/D+ vs pT
ALICE_2017_I1511870 7000 1.1 -0.88 0.22
Identified Particles : pT
D*+
ALICE_2017_I1511870 7000 4.2 -1.8 2.4
LHCB_2013_I1218996 7000 7.2 +0.90 8.1
Identified Particles : σ
D*+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D*+/D0 vs pT
ALICE_2017_I1511870 7000 1.1 -0.58 0.52
K0S2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
K0S
ALICE_2011_I881474 900 1.3 -0.31 0.99
ALICE_2020_I1797443 13000 n/a - n/a
LHCB_2010_I865584 900 3.5 -0.10 3.4
STAR_2006_I722757 200 5.2 - n/a
Identified Particles : Ratios
K-/K+ vs |y|
LHCB_2012_I1119400 [900..7000] 0.79 +0.21 1.0
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 4.5 0 4.5
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 5.5 -0.100 5.4
Identified Particles : pT
K-
ALICE_2011_I885104 900 0.81 -0.010 0.80
STAR_2006_I722757 200 7.6 +1.5 9.1
STAR_2008_I793126 200 3.0 -0.10 2.9
Identified Particles : pT
K+
ALICE_2011_I885104 900 0.94 +0.26 1.2
STAR_2006_I722757 200 8.2 +1.8 10
STAR_2008_I793126 200 3.2 +0.100 3.3
Identified Particles : pT
K+ + K-
ALICE_2015_I1357424 7000 1.6 +0.100 1.7
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 84 +1.0 85
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 21 -2.0 19
STAR_2006_I722757 200 n/a - n/a
Identified Particles : pT
Λc+
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 34 +3.0 37
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] 14 +1.0 15
Identified Particles : Ratios
Λbar/K0S vs |y|
LHCB_2011_I917009 [900..7000] 11 +1.0 12
Identified Particles : Ratios
Λbar/K0S vs |Δy|
LHCB_2011_I917009 [900..7000] 12 +1.0 13
Identified Particles : Ratios
Λbar/Λ vs pT
LHCB_2011_I917009 [900..7000] 1.8 -0.30 1.5
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
Λbar/Λ vs |y|
LHCB_2011_I917009 [900..7000] 2.4 -0.30 2.1
Identified Particles : Ratios
Λbar/Λ vs |Δy|
LHCB_2011_I917009 [900..7000] 3.0 -0.40 2.6
Identified Particles : pT
Λbar
ALICE_2011_I881474 900 15 -1.0 14
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 3.8 +3.3 7.1
Identified Particles : pT
Σbar(1385)+
ALICE_2014_I1300380 7000 4.4 +1.6 6.0
Identified Particles : pT
Σ(1385)-
ALICE_2014_I1300380 7000 7.5 -0.80 6.7
Identified Particles : pT
Σ(1385)+
ALICE_2014_I1300380 7000 6.2 0 6.2
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 29 - n/a
Xi2phi_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
Ξ
ALICE_2011_I881474 900 9.6 -0.80 8.8
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 0.018 +0.028 0.046
<pT> vs Nch
ALICE_2010_I860416 900 0.31* +0.12 0.43*
ATLAS_2010_I849050 900 0.12 -0.063 0.057
CDF_2002_I567774 [630..1800] 0.40* - n/a
CDF_2009_I817466 1960 n/a - n/a
CMS_2013_I1261026 7000 0.20 -0.030 0.17
UA1_1990_I280412 [63..900] 5.6* -0.100 5.5*
Identified Particles : σ
ccbar
ALICE_2017_I1511870 7000 n/a - n/a
Energy flow
LHCB_2013_I1208105 7000 34 0 34
Forward energy flow ratio
CMS_2013_I1218372 [900..7000] 0.72* -0.21 0.51*
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] 0.86* -0.040 0.82*
ATLAS_2010_I849050 900 0.47 +0.13 0.60
CDF_1990_I283352 [630..1800] 2.6* - n/a
CMS_2015_I1384119 13000 n/a - n/a
TOTEM_2012_I1115294 7000 5.7 +0.30 6.0
UA5_1982_I176647 53 3.8 0 3.8
UA5_1986_I233599 [200..900] 5.4 0 5.4
Identified Particles : Ratios
η/π0 vs pT
ALICE_2012_I1116147 7000 n/a - n/a
Rapidity gap size
ATLAS_2012_I1084540 7000 12 -1.0 11
Identified Particles : pT
η
ALICE_2012_I1116147 7000 2.9 -1.1 1.8
FB Correlations
b(Nch) vs Δη
UA5_1988_I263399 [200..900] 4.6 +0.30 4.9
FB Correlations
b(Nch) vs ηC
UA5_1988_I263399 [200..900] 16 0 16
Jet pT
CMS_2013_I1261026 7000 0.47* - n/a
STAR_2006_I723509 200 23* -1.0 22*
Jet Shapes
Differential Jet Shape
CMS_2013_I1261026 7000 0.57 +0.14 0.71
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 2.3 0 2.3
ALICE_2010_I852450 [900..2360] 3.5* -0.50 3.0*
ATLAS_2010_I849050 900 3.6 0 3.6
CDF_2002_I567774 [630..1800] 29* - n/a
CDF_2009_NOTE_9936 1960 n/a - n/a
STAR_2008_I793126 200 n/a - n/a
UA1_1990_I280412 [200..900] 15* 0 15*
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 2.0 +1.2 3.2*
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 84 -7.0 77
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] 1.5 +0.10 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 19 +2.0 21
Identified Particles : Ratios
(pbar+p)/(K-+K+) vs |y|
LHCB_2012_I1119400 [900..7000] 2.0 0 2.0
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 1.5 +0.40 1.9
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 3.3 +0.40 3.7
phi2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
φ
ALICE_2011_I881474 900 16 0 16
ALICE_2020_I1797443 13000 n/a - n/a
ATLAS_2014_I1282441 7000 4.7 -0.30 4.4
LHCB_2011_I919315 7000 15 -2.0 13
Identified Particles : Y
φ
ATLAS_2014_I1282441 7000 3.3 -0.20 3.1
LHCB_2011_I919315 7000 18 -2.0 16
Identified Particles : pT
π0
ALICE_2012_I1116147 [900..7000] 0.56* -0.020 0.54*
LHCF_2012_I1115479 7000 5.6 -0.100 5.5
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 -0.010 0.27
Identified Particles : pT
π-
ALICE_2011_I885104 900 3.3 +0.10 3.4
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 3.6 +1.00 4.6
Identified Particles : pT
π+
ALICE_2011_I885104 900 3.1 +0.40 3.5
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 3.9 +0.60 4.5
Identified Particles : pT
π+ + π-
ALICE_2015_I1357424 7000 4.8 -1.0 3.8
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
pbar
ALICE_2011_I885104 900 1.7 -0.100 1.6
Identified Particles : pT
p
ALICE_2011_I885104 900 1.6 +0.20 1.8
Identified Particles : pT
p + pbar
ALICE_2015_I1357424 7000 4.8 -0.30 4.5
ALICE_2020_I1797443 13000 n/a - n/a
pT Distributions
ALICE_2010_I860416 900 0.81 +0.070 0.88
ATLAS_2010_I849050 900 n/a - 1.0
CDF_1988_I263320 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 20* +4.0 24*
<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 20 +3.0 23
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 39* -1.0 38*
Σ(ET) vs Nch
UA1_1990_I280412 [200..900] 31* -2.0 29*
Diffractive ξ
CMS_2012_I1184941 7000 n/a - n/a
Cross sections
ATLAS_2011_I894867 7000 2.4 -0.10 2.3
CMS_2012_I1193338 7000 0.69 -0.040 0.65

* 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.