Generator / tune

Details for Pythia 6.427 365 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 n/a - 5.4
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 19 -1.0 18
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 4.4 +0.50 4.9
LHCB_2013_I1218996 7000 8.9 -5.1 3.8
Identified Particles : σ
D+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D+/D0 vs pT
ALICE_2017_I1511870 7000 1.0 -0.47 0.53
Identified Particles : pT
Ds+
ALICE_2017_I1511870 7000 0.21 +1.1 1.3
LHCB_2013_I1218996 7000 2.9 +0.60 3.5
Identified Particles : σ
Ds+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
Ds+/D0 vs pT
ALICE_2017_I1511870 7000 3.2 -2.6 0.62
Identified Particles : Ratios
Ds+/D+ vs pT
ALICE_2017_I1511870 7000 2.8 -1.3 1.5
Identified Particles : pT
D*+
ALICE_2017_I1511870 7000 4.8 -1.7 3.1
LHCB_2013_I1218996 7000 30 -18 12
Identified Particles : σ
D*+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D*+/D0 vs pT
ALICE_2017_I1511870 7000 1.0 -0.37 0.63
K0S2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
K0S
ALICE_2011_I881474 900 24 -2.0 22
ALICE_2020_I1797443 13000 n/a - n/a
LHCB_2010_I865584 900 7.6 -0.100 7.5
STAR_2006_I722757 200 5.7 - n/a
Identified Particles : Ratios
K-/K+ vs |y|
LHCB_2012_I1119400 [900..7000] 0.98 +0.32 1.3
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 14 0 14
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 19 -1.0 18
Identified Particles : pT
K-
ALICE_2011_I885104 900 13 -2.0 11
STAR_2006_I722757 200 6.9 +0.50 7.4
STAR_2008_I793126 200 2.4 -0.40 2.0
Identified Particles : pT
K+
ALICE_2011_I885104 900 11 0 11
STAR_2006_I722757 200 7.4 -2.1 5.3
STAR_2008_I793126 200 2.8 -0.70 2.1
Identified Particles : pT
K+ + K-
ALICE_2015_I1357424 7000 22 -3.0 19
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 96 +4.0 100
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 46 +3.0 49
STAR_2006_I722757 200 n/a - n/a
Identified Particles : pT
Λc+
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 130 -36 94
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] 18 0 18
Identified Particles : Ratios
Λbar/K0S vs |y|
LHCB_2011_I917009 [900..7000] 14 0 14
Identified Particles : Ratios
Λbar/K0S vs |Δy|
LHCB_2011_I917009 [900..7000] 14 +1.0 15
Identified Particles : Ratios
Λbar/Λ vs pT
LHCB_2011_I917009 [900..7000] 1.6 -0.20 1.4
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
Λbar/Λ vs |y|
LHCB_2011_I917009 [900..7000] 2.0 +0.10 2.1
Identified Particles : Ratios
Λbar/Λ vs |Δy|
LHCB_2011_I917009 [900..7000] 2.7 -0.40 2.3
Identified Particles : pT
Λbar
ALICE_2011_I881474 900 39 -2.0 37
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 n/a - 17
Identified Particles : pT
Σbar(1385)+
ALICE_2014_I1300380 7000 15 0 15
Identified Particles : pT
Σ(1385)-
ALICE_2014_I1300380 7000 19 +1.0 20
Identified Particles : pT
Σ(1385)+
ALICE_2014_I1300380 7000 21 - n/a
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 13 -2.0 11
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 1.3 -0.66 0.64
<pT> vs Nch
ALICE_2010_I860416 900 1.0* -0.12 0.88*
ATLAS_2010_I849050 900 n/a - n/a
CDF_2002_I567774 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
CMS_2013_I1261026 7000 1.6 -0.50 1.1
UA1_1990_I280412 [63..900] 7.5* -0.50 7.0*
Identified Particles : σ
ccbar
ALICE_2017_I1511870 7000 n/a - n/a
Energy flow
LHCB_2013_I1208105 7000 110 -10 100
Forward energy flow ratio
CMS_2013_I1218372 [900..7000] 1.2 +0.20 1.4*
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] 40* -4.0 36*
ATLAS_2010_I849050 900 8.0 -1.2 6.8
CDF_1990_I283352 [630..1800] n/a - n/a
CMS_2015_I1384119 13000 n/a - n/a
TOTEM_2012_I1115294 7000 20 0 20
UA5_1982_I176647 53 2.0 -0.20 1.8
UA5_1986_I233599 [200..900] 36 -3.0 33
Identified Particles : Ratios
η/π0 vs pT
ALICE_2012_I1116147 7000 n/a - n/a
Rapidity gap size
ATLAS_2012_I1084540 7000 33 0 33
Identified Particles : pT
η
ALICE_2012_I1116147 7000 0.84 -0.100 0.74
FB Correlations
b(Nch) vs Δη
UA5_1988_I263399 [200..900] 7.6 -1.5 6.1
FB Correlations
b(Nch) vs ηC
UA5_1988_I263399 [200..900] 7.5 -0.40 7.1
Jet pT
CMS_2013_I1261026 7000 n/a - n/a
STAR_2006_I723509 200 6.7* -1.9 4.8*
Jet Shapes
Differential Jet Shape
CMS_2013_I1261026 7000 1.0 -0.18 0.82
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 n/a - n/a
ALICE_2010_I852450 [900..2360] 46* -5.0 41*
ATLAS_2010_I849050 900 n/a - 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] 120* -25 95*
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 49* -9.0 40*
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 81 -5.0 76
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] 1.3 +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 18 +4.0 22
Identified Particles : Ratios
(pbar+p)/(K-+K+) vs |y|
LHCB_2012_I1119400 [900..7000] 2.0 +0.10 2.1
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 11 -1.5 9.5
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 13 0 13
phi2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
φ
ALICE_2011_I881474 900 5.0 -0.30 4.7
ALICE_2020_I1797443 13000 n/a - n/a
ATLAS_2014_I1282441 7000 7.4 +0.40 7.8
LHCB_2011_I919315 7000 20 0 20
Identified Particles : Y
φ
ATLAS_2014_I1282441 7000 4.8 +0.20 5.0
LHCB_2011_I919315 7000 23 -2.0 21
Identified Particles : pT
π0
ALICE_2012_I1116147 [900..7000] 1.5* -0.20 1.3*
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] 0.33 -0.16 0.17
Identified Particles : pT
π-
ALICE_2011_I885104 900 11 -1.6 9.4
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 4.5 -1.1 3.4
Identified Particles : pT
π+
ALICE_2011_I885104 900 10 -0.80 9.2
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 4.9 -2.0 2.9
Identified Particles : pT
π+ + π-
ALICE_2015_I1357424 7000 15 -1.0 14
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
pbar
ALICE_2011_I885104 900 11 0 11
Identified Particles : pT
p
ALICE_2011_I885104 900 9.4 -0.60 8.8
Identified Particles : pT
p + pbar
ALICE_2015_I1357424 7000 11 -1.2 9.8
ALICE_2020_I1797443 13000 n/a - n/a
pT Distributions
ALICE_2010_I860416 900 11 -1.0 10.0
ATLAS_2010_I849050 900 3.9 - n/a
CDF_1988_I263320 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 39* -3.0 36*
<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 640 0 640
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 42* +51 93*
Σ(ET) vs Nch
UA1_1990_I280412 [200..900] 27* -2.0 25*
Diffractive ξ
CMS_2012_I1184941 7000 n/a - n/a
Cross sections
ATLAS_2011_I894867 7000 2.3 0 2.3
CMS_2012_I1193338 7000 1.0 -0.050 0.95

* 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.