Generator

Details for Pythia 8.165 tune-4cx vs. tune-A2

pp/ppbar → Soft QCD (inelastic)


Observable Reference Energy χ2+5% (tune-4cx) Δ χ2+5% (tune-A2)
Identified Particles : pT
D0
ALICE_2017_I1511870 7000 n/a - n/a
ALICE_2022_I1868463 13000 7.0 - n/a
LHCB_2013_I1218996 7000 5.5 0 5.5
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 n/a - 3.1
LHCB_2013_I1218996 7000 7.7 -1.3 6.4
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 - 1.3
Identified Particles : pT
Ds+
ALICE_2017_I1511870 7000 0.39 +0.40 0.79
LHCB_2013_I1218996 7000 3.3* 0 3.3
Identified Particles : σ
Ds+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
Ds+/D0 vs pT
ALICE_2017_I1511870 7000 0.97 +0.030 1.0
Identified Particles : Ratios
Ds+/D+ vs pT
ALICE_2017_I1511870 7000 1.4 +0.40 1.8
Identified Particles : pT
D*+
ALICE_2017_I1511870 7000 1.0 +1.0 2.0
LHCB_2013_I1218996 7000 7.4 -1.2 6.2
Identified Particles : σ
D*+
ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
D*+/D0 vs pT
ALICE_2017_I1511870 7000 0.95 +0.35 1.3
K0S2pippim_pt
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
K0S
ALICE_2011_I881474 900 15 -2.0 13
ALICE_2020_I1797443 13000 n/a - n/a
LHCB_2010_I865584 900 5.9 -0.20 5.7
STAR_2006_I722757 200 14 -5.9 8.1
Identified Particles : Ratios
K-/K+ vs |y|
LHCB_2012_I1119400 [900..7000] 1.0 +0.10 1.1
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 19 +1.0 20
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 22 +1.0 23
Identified Particles : pT
K-
ALICE_2011_I885104 900 6.8 -1.8 5.0
STAR_2006_I722757 200 16 -4.0 12
STAR_2008_I793126 200 6.0 -3.9 2.1
Identified Particles : pT
K+
ALICE_2011_I885104 900 7.5 -1.8 5.7
STAR_2006_I722757 200 18 -8.0 10
STAR_2008_I793126 200 3.8 +0.20 4.0
Identified Particles : pT
K+ + K-
ALICE_2015_I1357424 7000 4.2 +0.70 4.9
ALICE_2020_I1797443 13000 n/a - n/a
Kst0Kst0b2pippim_pt
ALICE_2020_I1797443 13000 5.3 - n/a
Kst0Kst0b_pt
ALICE_2020_I1797443 13000 4.0 - n/a
Identified Particles : Ratios
Λ/K0S vs pT
ALICE_2011_I881474 900 32 +2.0 34
ALICE_2020_I1797443 13000 13 - n/a
LLbar_pt
ALICE_2020_I1797443 13000 32 - n/a
Identified Particles : pT
Λ
ALICE_2011_I881474 900 31 -3.0 28
STAR_2006_I722757 200 n/a - n/a
Identified Particles : pT
Λc+
ALICE_2022_I1868463 13000 n/a - n/a
LHCB_2013_I1218996 7000 86 +54 140
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] 7.0 -1.6 5.4
Identified Particles : Ratios
Λbar/K0S vs |y|
LHCB_2011_I917009 [900..7000] 6.0 -1.2 4.8
Identified Particles : Ratios
Λbar/K0S vs |Δy|
LHCB_2011_I917009 [900..7000] 7.2 -1.2 6.0
Identified Particles : Ratios
Λbar/Λ vs pT
LHCB_2011_I917009 [900..7000] 2.0 +0.50 2.5
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
Λbar/Λ vs |y|
LHCB_2011_I917009 [900..7000] 2.3 +0.70 3.0
Identified Particles : Ratios
Λbar/Λ vs |Δy|
LHCB_2011_I917009 [900..7000] 2.9 +1.1 4.0
Identified Particles : pT
Λbar
ALICE_2011_I881474 900 19 +2.0 21
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 13 -1.0 12
Identified Particles : pT
Σbar(1385)+
ALICE_2014_I1300380 7000 10 +2.0 12
Identified Particles : pT
Σ(1385)-
ALICE_2014_I1300380 7000 14 0 14
Identified Particles : pT
Σ(1385)+
ALICE_2014_I1300380 7000 12 +2.0 14
Identified Particles : pT
Σc0,+,++
ALICE_2022_I1868463 13000 7.2 - n/a
Identified Particles : Ratios
Σc0,+,++/D0 vs pT
ALICE_2022_I1868463 13000 14 - n/a
Identified Particles : pT
Ξ(1530)
ALICE_2014_I1300380 7000 n/a - n/a
Xi2phi_pt
ALICE_2020_I1797443 13000 7.0 - n/a
Identified Particles : pT
Ξ
ALICE_2011_I881474 900 12 -1.0 11
ALICE_2020_I1797443 13000 45 - 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 0.84 -0.050 0.79
<pT> vs Nch
ALICE_2010_I860416 900 0.66* 0 0.66*
ATLAS_2010_I849050 900 0.33 0 0.33
CDF_2002_I567774 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
CMS_2013_I1261026 7000 0.52 +0.32 0.84
UA1_1990_I280412 [63..900] 1.5* 0 1.5*
Identified Particles : σ
ccbar
ALICE_2017_I1511870 7000 n/a - n/a
Energy flow
LHCB_2013_I1208105 7000 2.7 -0.40 2.3
Forward energy flow ratio
CMS_2013_I1218372 [900..7000] 0.61* -0.40 0.21
EM energy spectrum
CMS_2017_I1511284 13000 19 - n/a
Hadronic energy spectrum
CMS_2017_I1511284 13000 10 - n/a
Total energy spectrum
CMS_2017_I1511284 13000 11 - n/a
η Distributions
ALICE_2010_I852264 [900..7000] 0.51* -0.40 0.11*
ATLAS_2010_I849050 900 0.23 -0.17 0.057
CDF_1990_I283352 [630..1800] n/a - n/a
CMS_2015_I1384119 13000 1.1 - n/a
TOTEM_2012_I1115294 7000 3.3 +0.60 3.9
UA5_1982_I176647 53 4.1 +5.9 10
UA5_1986_I233599 [200..900] 2.9 0 2.9
Identified Particles : Ratios
η/π0 vs pT
ALICE_2012_I1116147 7000 n/a - n/a
Rapidity gap size
ATLAS_2012_I1084540 7000 9.6 +0.40 10
Identified Particles : pT
η
ALICE_2012_I1116147 7000 0.98 +0.12 1.1
FB Correlations
b(Nch) vs Δη
UA5_1988_I263399 [200..900] 12 +4.0 16
FB Correlations
b(Nch) vs ηC
UA5_1988_I263399 [200..900] 20 +12 32
Jet pT
CMS_2013_I1261026 7000 1.5* - n/a
STAR_2006_I723509 200 13* +12 25*
Jet Shapes
Differential Jet Shape
CMS_2013_I1261026 7000 0.89 +0.61 1.5
Diffraction
ξ
ATLAS_2019_I1762584 8000 n/a - n/a
n.E
LHCF_2020_I1783943 13000 79 - n/a
n.avgk
LHCF_2020_I1783943 13000 2.0 - n/a
n.eflow
LHCF_2020_I1783943 13000 49 - n/a
n.k
LHCF_2020_I1783943 13000 21 - n/a
Multiplicity Distributions
ALICE_2010_I852264 7000 2.2 +0.100 2.3
ALICE_2010_I852450 [900..2360] 4.0* -1.8 2.2*
ATLAS_2010_I849050 900 0.96 -0.34 0.62
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] 21* +11 32*
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 3.1 +2.0 5.1*
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 200 100 0 100
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] 1.7 +0.10 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 32 +7.0 39
Identified Particles : Ratios
(pbar+p)/(K-+K+) vs |y|
LHCB_2012_I1119400 [900..7000] 8.5 +0.50 9.0
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 2.7 -0.70 2.0
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 3.4 -0.30 3.1
phi2pippim_pt
ALICE_2020_I1797443 13000 25 - n/a
Identified Particles : pT
φ
ALICE_2011_I881474 900 3.4 -0.10 3.3
ALICE_2020_I1797443 13000 11 - n/a
ATLAS_2014_I1282441 7000 2.6 +0.20 2.8
LHCB_2011_I919315 7000 7.0 +1.5 8.5
Identified Particles : Y
φ
ATLAS_2014_I1282441 7000 1.8 0 1.8
LHCB_2011_I919315 7000 6.4 +1.0 7.4
Identified Particles : pT
π0
ALICE_2012_I1116147 [900..7000] 1.1* -0.23 0.87*
LHCF_2012_I1115479 7000 5.9* -0.40 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] 0.13 +0.31 0.44
Identified Particles : pT
π-
ALICE_2011_I885104 900 1.8 +0.70 2.5
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 2.6 +1.2 3.8
Identified Particles : pT
π+
ALICE_2011_I885104 900 1.8 +0.60 2.4
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 3.3 +0.50 3.8
Identified Particles : pT
π+ + π-
ALICE_2015_I1357424 7000 6.8 +1.3 8.1
ALICE_2020_I1797443 13000 n/a - n/a
Identified Particles : pT
pbar
ALICE_2011_I885104 900 2.9 +1.1 4.0
Identified Particles : pT
p
ALICE_2011_I885104 900 3.5 +0.20 3.7
Identified Particles : pT
p + pbar
ALICE_2015_I1357424 7000 5.3 +0.60 5.9
ALICE_2020_I1797443 13000 n/a - n/a
pT Distributions
ALICE_2010_I860416 900 2.7 -1.0 1.7
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] 15* -2.0 13*
<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 17 +9.0 26
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 25* +18 43*
Σ(ET) vs Nch
UA1_1990_I280412 [200..900] 27* +2.0 29*
Diffractive ξ
CMS_2012_I1184941 7000 n/a - n/a
Cross sections
ATLAS_2011_I894867 7000 3.0 +0.10 3.1
CMS_2012_I1193338 7000 2.1 +0.20 2.3

* 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.