Generator / tune

Details for Pythia 6.426 ambt1 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 1.4 - n/a
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 4.1 -0.60 3.5
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 1.6 -0.10 1.5
LHCB_2013_I1218996 7000 2.6 +0.20 2.8*
Identified Particles : σ
D+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D+/D0 vs pT
ALICE_2017_I1511870 7000 1.2 +0.90 2.1
Identified Particles : pT
Ds+
ALICE_2017_I1511870 7000 1.8 -1.2 0.58
LHCB_2013_I1218996 7000 5.5 -0.80 4.7
Identified Particles : σ
Ds+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
Ds+/D0 vs pT
ALICE_2017_I1511870 7000 0.39 -0.28 0.11
Identified Particles : Ratios
Ds+/D+ vs pT
ALICE_2017_I1511870 7000 0.32 +0.98 1.3
Identified Particles : pT
D*+
ALICE_2017_I1511870 7000 2.7 -0.40 2.3
LHCB_2013_I1218996 7000 9.2 -0.20 9.0
Identified Particles : σ
D*+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D*+/D0 vs pT
ALICE_2017_I1511870 7000 0.68 +0.21 0.89
K0S2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
K0S
ALICE_2011_I881474 900 3.4 +0.70 4.1
ALICE_2020_I1797443 13000 n/a - n/a
LHCB_2010_I865584 900 3.9 +0.10 4.0
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
K-/K+ vs |y|
LHCB_2012_I1119400 [900..7000] 1.1 0 1.1
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 4.9 -0.40 4.5
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 4.5 +0.60 5.1
Identified Particles : pT
K-
ALICE_2011_I885104 900 1.9 0 1.9
STAR_2006_I722757 200 7.3 -1.0 6.3
STAR_2008_I793126 200 1.9 +1.0 2.9
Identified Particles : pT
K+
ALICE_2011_I885104 900 1.9 +0.40 2.3
STAR_2006_I722757 200 7.5 -0.50 7.0
STAR_2008_I793126 200 2.5 -0.20 2.3
Identified Particles : pT
K+ + K-
ALICE_2015_I1357424 7000 2.7 -0.20 2.5
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 -14 70
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 29 -2.0 27
STAR_2006_I722757 200 n/a - n/a
Identified Particles : pT
Λc+
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 45 -10 35
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] 12 +1.0 13
Identified Particles : Ratios
Λbar/K0S vs |y|
LHCB_2011_I917009 [900..7000] 10 -0.20 9.8
Identified Particles : Ratios
Λbar/K0S vs |Δy|
LHCB_2011_I917009 [900..7000] 11 0 11
Identified Particles : Ratios
Λbar/Λ vs pT
LHCB_2011_I917009 [900..7000] 3.1 -0.90 2.2
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
Λbar/Λ vs |y|
LHCB_2011_I917009 [900..7000] 3.5 -0.40 3.1
Identified Particles : Ratios
Λbar/Λ vs |Δy|
LHCB_2011_I917009 [900..7000] 5.3 -0.90 4.4
Identified Particles : pT
Λbar
ALICE_2011_I881474 900 18 0 18
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 7.3 -1.8 5.5
Identified Particles : pT
Σbar(1385)+
ALICE_2014_I1300380 7000 6.1 -0.90 5.2
Identified Particles : pT
Σ(1385)-
ALICE_2014_I1300380 7000 8.1 0 8.1
Identified Particles : pT
Σ(1385)+
ALICE_2014_I1300380 7000 8.1 +1.0 9.1
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 9.9 +1.1 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 0.96 +0.24 1.2
<pT> vs Nch
ALICE_2010_I860416 900 0.28* -0.090 0.19*
ATLAS_2010_I849050 900 0.075 +0.015 0.090
CDF_2002_I567774 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
CMS_2013_I1261026 7000 0.30 +0.22 0.52
UA1_1990_I280412 [63..900] 4.7* 0 4.7*
Identified Particles : σ
ccbar
ALICE_2017_I1511870 7000 n/a - n/a
Energy flow
LHCB_2013_I1208105 7000 32 +1.0 33
Forward energy flow ratio
CMS_2013_I1218372 [900..7000] 0.47* -0.030 0.44*
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] 3.2* +0.100 3.3*
ATLAS_2010_I849050 900 0.096 +0.074 0.17
CDF_1990_I283352 [630..1800] n/a - n/a
CMS_2015_I1384119 13000 n/a - n/a
TOTEM_2012_I1115294 7000 6.4 +0.100 6.5
UA5_1982_I176647 53 2.5 0 2.5
UA5_1986_I233599 [200..900] 8.0 -0.20 7.8
Identified Particles : Ratios
η/π0 vs pT
ALICE_2012_I1116147 7000 n/a - n/a
Rapidity gap size
ATLAS_2012_I1084540 7000 10 0 10
Identified Particles : pT
η
ALICE_2012_I1116147 7000 1.3 +0.50 1.8
FB Correlations
b(Nch) vs Δη
UA5_1988_I263399 [200..900] 6.8 +2.0 8.8
FB Correlations
b(Nch) vs ηC
UA5_1988_I263399 [200..900] 5.1 +0.40 5.5
Jet pT
CMS_2013_I1261026 7000 n/a - n/a
STAR_2006_I723509 200 18* - n/a
Jet Shapes
Differential Jet Shape
CMS_2013_I1261026 7000 0.63 -0.31 0.32
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 5.0 +0.80 5.8
ALICE_2010_I852450 [900..2360] 8.2* +0.50 8.7*
ATLAS_2010_I849050 900 0.37 -0.010 0.36
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] 36* -2.0 34
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 10* +3.0 13*
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 77 -3.0 74
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] 1.8 0 1.8
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 -1.0 18
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 2.1 0 2.1
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 2.5 +0.40 2.9
phi2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
φ
ALICE_2011_I881474 900 12 -2.0 10
ALICE_2020_I1797443 13000 n/a - n/a
ATLAS_2014_I1282441 7000 3.6 -0.30 3.3
LHCB_2011_I919315 7000 11 +2.0 13
Identified Particles : Y
φ
ATLAS_2014_I1282441 7000 2.8 -0.30 2.5
LHCB_2011_I919315 7000 14 +2.0 16
Identified Particles : pT
π0
ALICE_2012_I1116147 [900..7000] 0.82* +0.28 1.1*
LHCF_2012_I1115479 7000 5.2 -0.10 5.1
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] 0.17 0 0.17
Identified Particles : pT
π-
ALICE_2011_I885104 900 2.6 0 2.6
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 4.3 -0.80 3.5
Identified Particles : pT
π+
ALICE_2011_I885104 900 2.6 -0.20 2.4
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 3.6 -1.1 2.5
Identified Particles : pT
π+ + π-
ALICE_2015_I1357424 7000 1.8 +0.100 1.9
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
pbar
ALICE_2011_I885104 900 2.7 -0.50 2.2
Identified Particles : pT
p
ALICE_2011_I885104 900 1.9 0 1.9
Identified Particles : pT
p + pbar
ALICE_2015_I1357424 7000 2.6 0 2.6
ALICE_2020_I1797443 13000 n/a - n/a
pT Distributions
ALICE_2010_I860416 900 1.7 -0.20 1.5
ATLAS_2010_I849050 900 0.62 -0.100 0.52
CDF_1988_I263320 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 25* -5.0 20*
<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 30 +1.0 31
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 43* -1.0 42
Σ(ET) vs Nch
UA1_1990_I280412 [200..900] 29* -3.0 26*
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 0.67 -0.020 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.