Generator / tune

Details for Pythia 8.308 default vs. 8.313

pp/ppbar → Soft QCD (inelastic)


Observable Reference Energy χ2+5% (8.308) Δ χ2+5% (8.313)
Identified Particles : pT
D0
ALICE_2017_I1511870 7000 n/a -
ALICE_2022_I1868463 13000 7.2 -
LHCB_2013_I1218996 7000 3.3 -
Identified Particles : pT
D0
ALICE_2017_I1511870 7000 n/a -
Identified Particles : σ
D0
ALICE_2017_I1511870 7000 n/a -
Identified Particles : pT
D+
ALICE_2017_I1511870 7000 n/a -
LHCB_2013_I1218996 7000 5.8 -
Identified Particles : σ
D+
ALICE_2017_I1511870 7000 n/a -
Identified Particles : Ratios
D+/D0 vs pT
ALICE_2017_I1511870 7000 n/a -
Identified Particles : pT
Ds+
ALICE_2017_I1511870 7000 1.6 -
LHCB_2013_I1218996 7000 3.6* -
Identified Particles : σ
Ds+
ALICE_2017_I1511870 7000 n/a -
Identified Particles : Ratios
Ds+/D0 vs pT
ALICE_2017_I1511870 7000 0.81 -
Identified Particles : Ratios
Ds+/D+ vs pT
ALICE_2017_I1511870 7000 1.0 -
Identified Particles : pT
D*+
ALICE_2017_I1511870 7000 n/a -
LHCB_2013_I1218996 7000 7.0 -
Identified Particles : σ
D*+
ALICE_2017_I1511870 7000 n/a -
Identified Particles : Ratios
D*+/D0 vs pT
ALICE_2017_I1511870 7000 n/a -
K0S2pippim_pt
ALICE_2020_I1797443 13000 9.7 -
Identified Particles : pT
K0S
ALICE_2011_I881474 900 7.6 -
ALICE_2020_I1797443 13000 2.7 -
LHCB_2010_I865584 900 3.1 -
STAR_2006_I722757 200 n/a -
Identified Particles : Ratios
K-/K+ vs |y|
LHCB_2012_I1119400 [900..7000] 1.1 -
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 9.7 -
ALICE_2020_I1797443 13000 n/a -
Identified Particles : Ratios
(K-+K+)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 12 -
Identified Particles : pT
K-
ALICE_2011_I885104 900 3.4 -
STAR_2006_I722757 200 16 -
STAR_2008_I793126 200 2.5 -
Identified Particles : pT
K+
ALICE_2011_I885104 900 3.3 -
STAR_2006_I722757 200 11 -
STAR_2008_I793126 200 2.6 -
Identified Particles : pT
K+ + K-
ALICE_2015_I1357424 7000 3.3 -
ALICE_2020_I1797443 13000 n/a -
Kst0Kst0b2pippim_pt
ALICE_2020_I1797443 13000 6.2 -
Kst0Kst0b_pt
ALICE_2020_I1797443 13000 4.3 -
Identified Particles : Ratios
Λ/K0S vs pT
ALICE_2011_I881474 900 65 -
ALICE_2020_I1797443 13000 24 -
LLbar_pt
ALICE_2020_I1797443 13000 40 -
Identified Particles : pT
Λ
ALICE_2011_I881474 900 29 -
STAR_2006_I722757 200 n/a -
Identified Particles : pT
Λc+
ALICE_2022_I1868463 13000 13* -
LHCB_2013_I1218996 7000 120 -
Identified Particles : Ratios
Λc+/D0 vs pT
ALICE_2022_I1868463 13000 n/a -
Identified Particles : Ratios
Λc+ from Σc0,+,++/Λc+ vs pT
ALICE_2022_I1868463 13000 5.8 -
Identified Particles : Ratios
Λbar/K0S vs pT
LHCB_2011_I917009 [900..7000] 12 -
Identified Particles : Ratios
Λbar/K0S vs |y|
LHCB_2011_I917009 [900..7000] 9.6 -
Identified Particles : Ratios
Λbar/K0S vs |Δy|
LHCB_2011_I917009 [900..7000] 10 -
Identified Particles : Ratios
Λbar/Λ vs pT
LHCB_2011_I917009 [900..7000] 1.5 -
STAR_2006_I722757 200 n/a -
Identified Particles : Ratios
Λbar/Λ vs |y|
LHCB_2011_I917009 [900..7000] 2.2 -
Identified Particles : Ratios
Λbar/Λ vs |Δy|
LHCB_2011_I917009 [900..7000] 2.8 -
Identified Particles : pT
Λbar
ALICE_2011_I881474 900 20 -
STAR_2006_I722757 200 n/a -
Omega2phi_pt
ALICE_2020_I1797443 13000 42 -
Omegapm_pt
ALICE_2020_I1797443 13000 100 -
Identified Particles : pT
Σbar(1385)-
ALICE_2014_I1300380 7000 10 -
Identified Particles : pT
Σbar(1385)+
ALICE_2014_I1300380 7000 9.8 -
Identified Particles : pT
Σ(1385)-
ALICE_2014_I1300380 7000 13 -
Identified Particles : pT
Σ(1385)+
ALICE_2014_I1300380 7000 12 -
Identified Particles : pT
Σc0,+,++
ALICE_2022_I1868463 13000 9.2 -
Identified Particles : Ratios
Σc0,+,++/D0 vs pT
ALICE_2022_I1868463 13000 17 -
Identified Particles : pT
Ξ(1530)
ALICE_2014_I1300380 7000 24 -
Xi2phi_pt
ALICE_2020_I1797443 13000 6.5 -
Identified Particles : pT
Ξ
ALICE_2011_I881474 900 9.6 -
ALICE_2020_I1797443 13000 59 -
Identified Particles : pT
Ξ-
STAR_2006_I722757 200 n/a -
Identified Particles : Ratios
Ξ+/Ξ- vs pT
STAR_2006_I722757 200 n/a -
Identified Particles : pT
Ξ+
STAR_2006_I722757 200 n/a -
<pT>j vs Nch
CMS_2013_I1261026 7000 0.14 -
<pT> vs Nch
ALICE_2010_I860416 900 0.47* -
ATLAS_2010_I849050 900 0.86 -
CDF_2002_I567774 [630..1800] 2.3 -
CDF_2009_I817466 1960 n/a -
CMS_2013_I1261026 7000 0.48 -
UA1_1990_I280412 [63..900] 2.4* -
Identified Particles : σ
ccbar
ALICE_2017_I1511870 7000 n/a -
Energy flow
LHCB_2013_I1208105 7000 5.7 -
Forward energy flow ratio
CMS_2013_I1218372 [900..7000] 1.0 -
EM energy spectrum
CMS_2017_I1511284 13000 5.1 -
Hadronic energy spectrum
CMS_2017_I1511284 13000 37 -
Total energy spectrum
CMS_2017_I1511284 13000 18 -
η Distributions
ALICE_2010_I852264 [900..7000] 0.14 -
ATLAS_2010_I849050 900 0.40 -
CDF_1990_I283352 [630..1800] 2.9 -
CMS_2015_I1384119 13000 0.47 -
TOTEM_2012_I1115294 7000 0.14 -
UA5_1982_I176647 53 13 -
UA5_1986_I233599 [200..900] 3.1 -
Identified Particles : Ratios
η/π0 vs pT
ALICE_2012_I1116147 7000 n/a -
Rapidity gap size
ATLAS_2012_I1084540 7000 4.4 -
Identified Particles : pT
η
ALICE_2012_I1116147 7000 1.3 -
FB Correlations
b(Nch) vs Δη
UA5_1988_I263399 [200..900] 25 -
FB Correlations
b(Nch) vs ηC
UA5_1988_I263399 [200..900] 34 -
Jet pT
CMS_2013_I1261026 7000 n/a -
STAR_2006_I723509 200 16* -
Jet Shapes
Differential Jet Shape
CMS_2013_I1261026 7000 1.5 -
Diffraction
ξ
ATLAS_2019_I1762584 8000 75 -
n.E
LHCF_2020_I1783943 13000 130 -
n.avgk
LHCF_2020_I1783943 13000 6.2 -
n.eflow
LHCF_2020_I1783943 13000 38 -
n.k
LHCF_2020_I1783943 13000 57 -
Multiplicity Distributions
ALICE_2010_I852264 7000 2.0 -
ALICE_2010_I852450 [900..2360] 2.7 -
ATLAS_2010_I849050 900 0.80 -
CDF_2002_I567774 [630..1800] 17 -
CDF_2009_NOTE_9936 1960 n/a -
STAR_2008_I793126 200 n/a -
UA1_1990_I280412 [200..900] 26 -
UA5_1987_I244829 546 n/a -
UA5_1989_I267179 [200..900] n/a -
Jet Multiplicities
Nj vs Nch
CMS_2013_I1261026 7000 0.59* -
Identified Particles : Ratios
p/π+ vs pT
ALICE_2020_I1797443 13000 n/a -
STAR_2006_I709170 200 n/a -
Identified Particles : pT
p
STAR_2006_I709170 200 n/a -
STAR_2008_I793126 200 110 -
Identified Particles : Ratios
pbar/p vs pT
STAR_2006_I709170 200 n/a -
Identified Particles : Ratios
pbar/p vs |y|
LHCB_2012_I1119400 [900..7000] 1.3 -
Identified Particles : Ratios
pbar/π vs pT
STAR_2006_I709170 200 n/a -
Identified Particles : pT
pbar
STAR_2006_I709170 200 n/a -
STAR_2008_I793126 200 29 -
Identified Particles : Ratios
(pbar+p)/(K-+K+) vs |y|
LHCB_2012_I1119400 [900..7000] 1.7 -
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs pT
ALICE_2015_I1357424 7000 5.6 -
Identified Particles : Ratios
(pbar+p)/(π-+π+) vs |y|
LHCB_2012_I1119400 [900..7000] 6.9 -
phi2pippim_pt
ALICE_2020_I1797443 13000 25 -
Identified Particles : pT
φ
ALICE_2011_I881474 900 1.8 -
ALICE_2020_I1797443 13000 15 -
ATLAS_2014_I1282441 7000 1.4 -
LHCB_2011_I919315 7000 6.1 -
Identified Particles : Y
φ
ATLAS_2014_I1282441 7000 1.2 -
LHCB_2011_I919315 7000 4.6 -
Identified Particles : pT
π0
ALICE_2012_I1116147 [900..7000] 1.5* -
LHCF_2012_I1115479 7000 3.0 -
Identified Particles : Ratios
π-/π+ vs pT
STAR_2006_I709170 200 n/a -
Identified Particles : Ratios
π-/π+ vs |y|
LHCB_2012_I1119400 [900..7000] 0.15 -
Identified Particles : pT
π-
ALICE_2011_I885104 900 2.9 -
STAR_2006_I709170 200 n/a -
STAR_2008_I793126 200 6.4 -
Identified Particles : pT
π+
ALICE_2011_I885104 900 3.3 -
STAR_2006_I709170 200 n/a -
STAR_2008_I793126 200 5.8 -
Identified Particles : pT
π+ + π-
ALICE_2015_I1357424 7000 6.8 -
ALICE_2020_I1797443 13000 11 -
Identified Particles : pT
pbar
ALICE_2011_I885104 900 4.5 -
Identified Particles : pT
p
ALICE_2011_I885104 900 4.5 -
Identified Particles : pT
p + pbar
ALICE_2015_I1357424 7000 3.2 -
ALICE_2020_I1797443 13000 n/a -
pT Distributions
ALICE_2010_I860416 900 4.4 -
ATLAS_2010_I849050 900 n/a -
CDF_1988_I263320 [630..1800] n/a -
CDF_2009_I817466 1960 n/a -
UA1_1990_I280412 [200..900] 15* -
<pT> vs mass
ALICE_2011_I885104 900 n/a -
ALICE_2014_I1300380 7000 n/a -
STAR_2006_I722757 200 n/a -
Diffraction
Δη
ATLAS_2019_I1762584 8000 84 -
Diffraction
|t|
ATLAS_2019_I1762584 8000 69 -
Σ(ET)
ATLAS_2012_I1183818 7000 7.8 -
CDF_2009_I817466 1960 n/a -
UA1_1990_I280412 [200..900] 47 -
Σ(ET) vs Nch
UA1_1990_I280412 [200..900] 21 -
Diffractive ξ
CMS_2012_I1184941 7000 n/a -
Cross sections
ATLAS_2011_I894867 7000 2.8 -
CMS_2012_I1193338 7000 1.7 -

* 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 313 histograms.