Generator / tune

Details for Pythia 6.426 360 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 5.3 -0.90 4.4
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 26 0 26
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 2.9 +0.10 3.0
LHCB_2013_I1218996 7000 6.5 +3.5 10
Identified Particles : σ
D+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D+/D0 vs pT
ALICE_2017_I1511870 7000 0.66 +0.090 0.75
Identified Particles : pT
Ds+
ALICE_2017_I1511870 7000 2.4 -0.90 1.5
LHCB_2013_I1218996 7000 3.4 +2.4 5.8
Identified Particles : σ
Ds+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
Ds+/D0 vs pT
ALICE_2017_I1511870 7000 1.6 -1.4 0.23
Identified Particles : Ratios
Ds+/D+ vs pT
ALICE_2017_I1511870 7000 1.5 -0.75 0.75
Identified Particles : pT
D*+
ALICE_2017_I1511870 7000 3.8 -1.5 2.3
LHCB_2013_I1218996 7000 25 -5.0 20
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 -0.44 0.76
K0S2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
K0S
ALICE_2011_I881474 900 30 -1.0 29
ALICE_2020_I1797443 13000 n/a - n/a
LHCB_2010_I865584 900 8.3 -0.30 8.0
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
K-/K+ vs |y|
LHCB_2012_I1119400 [900..7000] 1.2 +0.30 1.5
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 14 -1.0 13
ALICE_2020_I1797443 13000 n/a - 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 14 +1.0 15
STAR_2006_I722757 200 8.4 +1.5 9.9
STAR_2008_I793126 200 2.1 +0.60 2.7
Identified Particles : pT
K+
ALICE_2011_I885104 900 14 0 14
STAR_2006_I722757 200 8.7 -1.9 6.8
STAR_2008_I793126 200 2.0 +0.60 2.6
Identified Particles : pT
K+ + K-
ALICE_2015_I1357424 7000 27 0 27
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 900 100 +10 110
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 56 +1.0 57
STAR_2006_I722757 200 n/a - n/a
Identified Particles : pT
Λc+
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 170 +30 200
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] 16 +1.0 17
Identified Particles : Ratios
Λbar/K0S vs |y|
LHCB_2011_I917009 [900..7000] 13 0 13
Identified Particles : Ratios
Λbar/K0S vs |Δy|
LHCB_2011_I917009 [900..7000] 12 +2.0 14
Identified Particles : Ratios
Λbar/Λ vs pT
LHCB_2011_I917009 [900..7000] 2.2 -0.70 1.5
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
Λbar/Λ vs |y|
LHCB_2011_I917009 [900..7000] 2.6 -0.20 2.4
Identified Particles : Ratios
Λbar/Λ vs |Δy|
LHCB_2011_I917009 [900..7000] 3.6 0 3.6
Identified Particles : pT
Λbar
ALICE_2011_I881474 900 40 +1.0 41
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 19 +3.0 22
Identified Particles : pT
Σbar(1385)+
ALICE_2014_I1300380 7000 13 +1.0 14
Identified Particles : pT
Σ(1385)-
ALICE_2014_I1300380 7000 19 +1.0 20
Identified Particles : pT
Σ(1385)+
ALICE_2014_I1300380 7000 23 -3.0 20
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 15 -1.0 14
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 2.5 +1.1 3.6
<pT> vs Nch
ALICE_2010_I860416 900 0.55* -0.12 0.43*
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 +1.5 3.1
UA1_1990_I280412 [63..900] 5.8* -0.100 5.7*
Identified Particles : σ
ccbar
ALICE_2017_I1511870 7000 n/a - n/a
Energy flow
LHCB_2013_I1208105 7000 130 0 130
Forward energy flow ratio
CMS_2013_I1218372 [900..7000] 2.0* -0.30 1.7
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] 46* 0 46*
ATLAS_2010_I849050 900 12 0 12
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 1.6 -0.10 1.5
UA5_1986_I233599 [200..900] 36 -1.0 35
Identified Particles : Ratios
η/π0 vs pT
ALICE_2012_I1116147 7000 n/a - n/a
Rapidity gap size
ATLAS_2012_I1084540 7000 37 0 37
Identified Particles : pT
η
ALICE_2012_I1116147 7000 1.7 +0.20 1.9
FB Correlations
b(Nch) vs Δη
UA5_1988_I263399 [200..900] 11 -2.1 8.9
FB Correlations
b(Nch) vs ηC
UA5_1988_I263399 [200..900] 7.3 +1.0 8.3
Jet pT
CMS_2013_I1261026 7000 n/a - n/a
STAR_2006_I723509 200 6.9* -2.8 4.1*
Jet Shapes
Differential Jet Shape
CMS_2013_I1261026 7000 0.57 +0.16 0.73
Diffraction
ξ
ATLAS_2019_I1762584 8000 n/a - 90
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] 51* +1.0 52*
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* -10 110*
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 45* -13 32
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 74 +5.0 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] 1.0 +0.60 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 27 -1.0 26
Identified Particles : Ratios
(pbar+p)/(K-+K+) vs |y|
LHCB_2012_I1119400 [900..7000] 2.1 +0.20 2.3
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 10 -0.90 9.1
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 12 +1.0 13
phi2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
φ
ALICE_2011_I881474 900 6.1 +0.50 6.6
ALICE_2020_I1797443 13000 n/a - n/a
ATLAS_2014_I1282441 7000 7.2 -1.3 5.9
LHCB_2011_I919315 7000 22 0 22
Identified Particles : Y
φ
ATLAS_2014_I1282441 7000 4.8 -0.80 4.0
LHCB_2011_I919315 7000 24 +1.0 25
Identified Particles : pT
π0
ALICE_2012_I1116147 [900..7000] 2.3* 0 2.3*
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] 0.24 -0.020 0.22
Identified Particles : pT
π-
ALICE_2011_I885104 900 11 0 11
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 4.1 -1.2 2.9
Identified Particles : pT
π+
ALICE_2011_I885104 900 11 0 11
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 3.8 +0.50 4.3
Identified Particles : pT
π+ + π-
ALICE_2015_I1357424 7000 19 0 19
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
pbar
ALICE_2011_I885104 900 13 +1.0 14
Identified Particles : pT
p
ALICE_2011_I885104 900 11 +1.0 12
Identified Particles : pT
p + pbar
ALICE_2015_I1357424 7000 15 0 15
ALICE_2020_I1797443 13000 n/a - n/a
pT Distributions
ALICE_2010_I860416 900 16 0 16
ATLAS_2010_I849050 900 n/a - 7.5
CDF_1988_I263320 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 42* -2.0 40*
<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 - 78
Diffraction
|t|
ATLAS_2019_I1762584 8000 n/a - 78
sqrts.xsec
ALICE_2012_I1181770 900:2760:7000 n/a - n/a
Σ(ET)
ATLAS_2012_I1183818 7000 1,100 0 1,000
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 42* +1.0 43*
Σ(ET) vs Nch
UA1_1990_I280412 [200..900] 28* -2.0 26*
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 0.98 -0.030 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.