Generator / tune

Details for Pythia 6.427 dw 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 - n/a
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 120 -23 97
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 56 +17 73*
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 2.2 +0.20 2.4
LHCB_2013_I1218996 7000 4.2 +5.1 9.3*
Identified Particles : σ
Ds+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
Ds+/D0 vs pT
ALICE_2017_I1511870 7000 0.87 +1.0 1.9
Identified Particles : Ratios
Ds+/D+ vs pT
ALICE_2017_I1511870 7000 1.0 +0.20 1.2
Identified Particles : pT
D*+
ALICE_2017_I1511870 7000 n/a - n/a
LHCB_2013_I1218996 7000 35 -2.0 33
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
K0S2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
K0S
ALICE_2011_I881474 900 13 -1.0 12
ALICE_2020_I1797443 13000 n/a - n/a
LHCB_2010_I865584 900 3.2 -0.10 3.1
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
K-/K+ vs |y|
LHCB_2012_I1119400 [900..7000] 1.5 -0.30 1.2
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 7.7 +0.90 8.6
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 7.2 +0.40 7.6
Identified Particles : pT
K-
ALICE_2011_I885104 900 5.8 0 5.8
STAR_2006_I722757 200 6.3 +1.2 7.5
STAR_2008_I793126 200 2.4 +0.40 2.8
Identified Particles : pT
K+
ALICE_2011_I885104 900 5.3 -0.20 5.1
STAR_2006_I722757 200 6.0 +0.30 6.3
STAR_2008_I793126 200 3.4 -0.60 2.8
Identified Particles : pT
K+ + K-
ALICE_2015_I1357424 7000 14 +2.0 16
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 29 +3.0 32
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 26 -1.0 25
STAR_2006_I722757 200 n/a - n/a
Identified Particles : pT
Λc+
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 280 -30 250
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] 4.6 +0.40 5.0
Identified Particles : Ratios
Λbar/K0S vs |y|
LHCB_2011_I917009 [900..7000] 4.3 +0.10 4.4
Identified Particles : Ratios
Λbar/K0S vs |Δy|
LHCB_2011_I917009 [900..7000] 5.6 -0.100 5.5
Identified Particles : Ratios
Λbar/Λ vs pT
LHCB_2011_I917009 [900..7000] 4.2 -0.50 3.7
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
Λbar/Λ vs |y|
LHCB_2011_I917009 [900..7000] 4.9 -0.40 4.5
Identified Particles : Ratios
Λbar/Λ vs |Δy|
LHCB_2011_I917009 [900..7000] 6.6 -0.50 6.1
Identified Particles : pT
Λbar
ALICE_2011_I881474 900 17 -1.0 16
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 6.9 +0.50 7.4
Identified Particles : pT
Σbar(1385)+
ALICE_2014_I1300380 7000 6.9 -0.10 6.8
Identified Particles : pT
Σ(1385)-
ALICE_2014_I1300380 7000 9.2 +0.80 10
Identified Particles : pT
Σ(1385)+
ALICE_2014_I1300380 7000 8.0 +2.0 10
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 9.0 +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 2.9 -1.6 1.3
<pT> vs Nch
ALICE_2010_I860416 900 1.6* +0.100 1.7*
ATLAS_2010_I849050 900 0.52 - n/a
CDF_2002_I567774 [630..1800] 1.1* - n/a
CDF_2009_I817466 1960 n/a - n/a
CMS_2013_I1261026 7000 3.8 -0.70 3.1
UA1_1990_I280412 [63..900] 5.2* -0.50 4.7*
Identified Particles : σ
ccbar
ALICE_2017_I1511870 7000 n/a - n/a
Energy flow
LHCB_2013_I1208105 7000 62 +5.0 67
Forward energy flow ratio
CMS_2013_I1218372 [900..7000] 5.7* -0.50 5.2*
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 2.2 +0.20 2.4
CDF_1990_I283352 [630..1800] 2.6* - n/a
CMS_2015_I1384119 13000 n/a - n/a
TOTEM_2012_I1115294 7000 4.0 0 4.0
UA5_1982_I176647 53 4.5 +0.20 4.7
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 12 -1.0 11
Identified Particles : pT
η
ALICE_2012_I1116147 7000 0.59 +0.12 0.71
FB Correlations
b(Nch) vs Δη
UA5_1988_I263399 [200..900] 33 +1.0 34
FB Correlations
b(Nch) vs ηC
UA5_1988_I263399 [200..900] 13 -1.0 12
Jet pT
CMS_2013_I1261026 7000 3.5* - n/a
STAR_2006_I723509 200 10* -1.3 8.7*
Jet Shapes
Differential Jet Shape
CMS_2013_I1261026 7000 4.1 -1.00 3.1
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] 39* -2.0 37*
ATLAS_2010_I849050 900 1.9 - n/a
CDF_2002_I567774 [630..1800] 8.1* - n/a
CDF_2009_NOTE_9936 1960 n/a - n/a
STAR_2008_I793126 200 n/a - n/a
UA1_1990_I280412 [200..900] 30* -2.0 28*
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 69* - n/a
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 68 +11 79
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] 3.1 -0.20 2.9
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 +2.0 20
Identified Particles : Ratios
(pbar+p)/(K-+K+) vs |y|
LHCB_2012_I1119400 [900..7000] 9.0 0 9.0
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 4.7 -0.70 4.0
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 2.6 -0.30 2.3
phi2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
φ
ALICE_2011_I881474 900 2.9 +1.7 4.6
ALICE_2020_I1797443 13000 n/a - n/a
ATLAS_2014_I1282441 7000 0.49 -0.29 0.20
LHCB_2011_I919315 7000 1.1 +0.30 1.4
Identified Particles : Y
φ
ATLAS_2014_I1282441 7000 0.46 -0.11 0.35
LHCB_2011_I919315 7000 1.2 +0.40 1.6
Identified Particles : pT
π0
ALICE_2012_I1116147 [900..7000] 3.1* +0.20 3.3*
LHCF_2012_I1115479 7000 3.3* +0.50 3.8
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] 0.21 +0.050 0.26
Identified Particles : pT
π-
ALICE_2011_I885104 900 5.3 -0.100 5.2
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 3.6 -1.6 2.0
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 2.3 -0.100 2.2
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 0.95 +0.25 1.2
Identified Particles : pT
p
ALICE_2011_I885104 900 1.2 -0.34 0.86
Identified Particles : pT
p + pbar
ALICE_2015_I1357424 7000 5.8 -0.60 5.2
ALICE_2020_I1797443 13000 n/a - n/a
pT Distributions
ALICE_2010_I860416 900 7.9 +0.100 8.0
ATLAS_2010_I849050 900 3.6 - n/a
CDF_1988_I263320 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 22* +6.0 28*
<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 97 +1.0 98
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 52* -1.0 51*
Σ(ET) vs Nch
UA1_1990_I280412 [200..900] 28* 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 0.78 -0.010 0.77

* 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.