Generator

Details for Pythia 8.303 default vs. default-CD

pp/ppbar → Soft QCD (inelastic)


Observable Reference Energy χ2+5% (default) Δ χ2+5% (default-CD)
Identified Particles : pT
 D0
 ALICE_2017_I1511870 7000 n/a - n/a
ALICE_2022_I1868463 13000 6.1 -1.6 4.5
LHCB_2013_I1218996 7000 4.5 -0.90 3.6
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 5.4 +0.50 5.9
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 0.67 +0.20 0.87
LHCB_2013_I1218996 7000 2.9 +0.50 3.4
Identified Particles : σ
 Ds+
 ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
 Ds+/D0 vs pT
 ALICE_2017_I1511870 7000 0.54 +0.19 0.73
Identified Particles : Ratios
 Ds+/D+ vs pT
 ALICE_2017_I1511870 7000 0.97 +0.33 1.3
Identified Particles : pT
 D*+
 ALICE_2017_I1511870 7000 0.81 - n/a
LHCB_2013_I1218996 7000 5.6 +2.2 7.8
Identified Particles : σ
 D*+
 ALICE_2017_I1511870 7000 n/a - n/a
Identified Particles : Ratios
 D*+/D0 vs pT
 ALICE_2017_I1511870 7000 0.82 - n/a
K0S2pippim_pt
 ALICE_2020_I1797443 13000 9.8 0 9.8
Identified Particles : pT
 K0S
 ALICE_2011_I881474 900 9.4 +0.20 9.6
ALICE_2020_I1797443 13000 2.7 +0.30 3.0
LHCB_2010_I865584 900 3.1 +0.10 3.2
STAR_2006_I722757 200 12 0 12
Identified Particles : Ratios
 K-/K+ vs |y|
 LHCB_2012_I1119400 [900..7000] 1.3 -0.35 0.95
Identified Particles : Ratios
 (K-+K+)/(π-+π+) vs pT
 ALICE_2015_I1357424 7000 9.7 -0.70 9.0
ALICE_2020_I1797443 13000 n/a - 4.9
Identified Particles : Ratios
 (K-+K+)/(π-+π+) vs |y|
 LHCB_2012_I1119400 [900..7000] 12 0 12
Identified Particles : pT
 K-
 ALICE_2011_I885104 900 3.0 +0.40 3.4
STAR_2006_I722757 200 15 +3.0 18
STAR_2008_I793126 200 2.1 +1.3 3.4
Identified Particles : pT
 K+
 ALICE_2011_I885104 900 4.1 +0.10 4.2
STAR_2006_I722757 200 14 0 14
STAR_2008_I793126 200 2.3 +1.2 3.5
Identified Particles : pT
 K+ + K-
 ALICE_2015_I1357424 7000 3.8 -0.80 3.0
ALICE_2020_I1797443 13000 n/a - 2.8
Kst0Kst0b2pippim_pt
 ALICE_2020_I1797443 13000 6.2 +0.100 6.3
Kst0Kst0b_pt
 ALICE_2020_I1797443 13000 4.1 0 4.1
Identified Particles : Ratios
 Λ/K0S vs pT
 ALICE_2011_I881474 900 61 -2.0 59
ALICE_2020_I1797443 13000 24 -2.0 22
LLbar_pt
 ALICE_2020_I1797443 13000 39 -2.0 37
Identified Particles : pT
 Λ
 ALICE_2011_I881474 900 31 0 31
STAR_2006_I722757 200 n/a - n/a
Identified Particles : pT
 Λc+
 ALICE_2022_I1868463 13000 15 +7.0 22*
LHCB_2013_I1218996 7000 140 -10 130
Identified Particles : Ratios
 Λc+/D0 vs pT
 ALICE_2022_I1868463 13000 33 +1.0 34
Identified Particles : Ratios
 Λc+ from Σc0,+,++/Λc+ vs pT
 ALICE_2022_I1868463 13000 2.1 - n/a
Identified Particles : Ratios
 Λbar/K0S vs pT
 LHCB_2011_I917009 [900..7000] 11 0 11
Identified Particles : Ratios
 Λbar/K0S vs |y|
 LHCB_2011_I917009 [900..7000] 8.5 +0.70 9.2
Identified Particles : Ratios
 Λbar/K0S vs |Δy|
 LHCB_2011_I917009 [900..7000] 9.6 +0.30 9.9
Identified Particles : Ratios
 Λbar/Λ vs pT
 LHCB_2011_I917009 [900..7000] 2.3 -0.60 1.7
STAR_2006_I722757 200 n/a - n/a
Identified Particles : Ratios
 Λbar/Λ vs |y|
 LHCB_2011_I917009 [900..7000] 2.7 0 2.7
Identified Particles : Ratios
 Λbar/Λ vs |Δy|
 LHCB_2011_I917009 [900..7000] 3.6 -0.10 3.5
Identified Particles : pT
 Λbar
 ALICE_2011_I881474 900 21 +2.0 23
STAR_2006_I722757 200 n/a - n/a
Omega2phi_pt
 ALICE_2020_I1797443 13000 65 -35 30
Omegapm_pt
 ALICE_2020_I1797443 13000 150 -77 73
Identified Particles : pT
 Σbar(1385)-
 ALICE_2014_I1300380 7000 12 -2.4 9.6
Identified Particles : pT
 Σbar(1385)+
 ALICE_2014_I1300380 7000 11 -2.0 9.0
Identified Particles : pT
 Σ(1385)-
 ALICE_2014_I1300380 7000 14 -2.0 12
Identified Particles : pT
 Σ(1385)+
 ALICE_2014_I1300380 7000 13 -1.0 12
Identified Particles : pT
 Σc0,+,++
 ALICE_2022_I1868463 13000 7.0 - n/a
Identified Particles : Ratios
 Σc0,+,++/D0 vs pT
 ALICE_2022_I1868463 13000 13 - n/a
Identified Particles : pT
 Ξ(1530)
 ALICE_2014_I1300380 7000 24 - n/a
Xi2phi_pt
 ALICE_2020_I1797443 13000 8.4 -2.7 5.7
Identified Particles : pT
 Ξ
 ALICE_2011_I881474 900 10 -0.70 9.3
ALICE_2020_I1797443 13000 69 -22 47
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 0.12 +0.090 0.21
<pT> vs Nch
 ALICE_2010_I860416 900 0.50* -0.010 0.49*
ATLAS_2010_I849050 900 0.91 -0.050 0.86
CDF_2002_I567774 [630..1800] 2.4 +0.10 2.5
CDF_2009_I817466 1960 n/a - 1.6
CMS_2013_I1261026 7000 0.59 -0.090 0.50
UA1_1990_I280412 [63..900] 2.5* -0.10 2.4*
Identified Particles : σ
 ccbar
 ALICE_2017_I1511870 7000 n/a - n/a
Energy flow
 LHCB_2013_I1208105 7000 5.1 +0.50 5.6
Forward energy flow ratio
 CMS_2013_I1218372 [900..7000] 1.1 -0.10 1.0
EM energy spectrum
 CMS_2017_I1511284 13000 4.8 -0.40 4.4
Hadronic energy spectrum
 CMS_2017_I1511284 13000 37 -3.0 34
Total energy spectrum
 CMS_2017_I1511284 13000 19 -1.0 18
η Distributions
 ALICE_2010_I852264 [900..7000] 0.18 +0.040 0.22
ATLAS_2010_I849050 900 0.34 -0.070 0.27
CDF_1990_I283352 [630..1800] 2.6 +0.10 2.7
CMS_2015_I1384119 13000 0.38 +0.030 0.41
TOTEM_2012_I1115294 7000 0.17 -0.040 0.13
UA5_1982_I176647 53 13 0 13
UA5_1986_I233599 [200..900] 3.0 +0.10 3.1
Identified Particles : Ratios
 η/π0 vs pT
 ALICE_2012_I1116147 7000 n/a - n/a
Rapidity gap size
 ATLAS_2012_I1084540 7000 4.3 +0.30 4.6
Identified Particles : pT
 η
 ALICE_2012_I1116147 7000 1.0 +0.50 1.5
FB Correlations
 b(Nch) vs Δη
 UA5_1988_I263399 [200..900] 23 0 23
FB Correlations
 b(Nch) vs ηC
 UA5_1988_I263399 [200..900] 32 +1.0 33
Jet pT
 CMS_2013_I1261026 7000 n/a - n/a
STAR_2006_I723509 200 10* +3.0 13*
Jet Shapes
 Differential Jet Shape
 CMS_2013_I1261026 7000 2.1 -0.60 1.5
Diffraction
 ξ
 ATLAS_2019_I1762584 8000 71 +2.0 73
n.E
 LHCF_2020_I1783943 13000 130 -30 100
n.avgk
 LHCF_2020_I1783943 13000 6.2 -0.20 6.0
n.eflow
 LHCF_2020_I1783943 13000 39 0 39
n.k
 LHCF_2020_I1783943 13000 56 -5.0 51
Multiplicity Distributions
 ALICE_2010_I852264 7000 2.3 -0.40 1.9
ALICE_2010_I852450 [900..2360] 2.8 +0.30 3.1
ATLAS_2010_I849050 900 0.60 -0.020 0.58
CDF_2002_I567774 [630..1800] 15 0 15
CDF_2009_NOTE_9936 1960 n/a - n/a
STAR_2008_I793126 200 n/a - n/a
UA1_1990_I280412 [200..900] 25 +1.0 26
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 0.53 +0.57 1.1*
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 200 120 +20 140
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] 1.6 -0.20 1.4
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 33 -3.0 30
Identified Particles : Ratios
 (pbar+p)/(K-+K+) vs |y|
 LHCB_2012_I1119400 [900..7000] 1.7 -0.100 1.6
Identified Particles : Ratios
 (pbar+p)/(π-+π+) vs pT
 ALICE_2015_I1357424 7000 4.4 +1.4 5.8
Identified Particles : Ratios
 (pbar+p)/(π-+π+) vs |y|
 LHCB_2012_I1119400 [900..7000] 6.6 -0.30 6.3
phi2pippim_pt
 ALICE_2020_I1797443 13000 25 -1.0 24
Identified Particles : pT
 φ
 ALICE_2011_I881474 900 3.0 +0.30 3.3
ALICE_2020_I1797443 13000 14 -1.0 13
ATLAS_2014_I1282441 7000 1.3 +0.80 2.1
LHCB_2011_I919315 7000 7.1 -0.50 6.6
Identified Particles : Y
 φ
 ATLAS_2014_I1282441 7000 0.94 +0.46 1.4
LHCB_2011_I919315 7000 4.7 +0.20 4.9
Identified Particles : pT
 π0
 ALICE_2012_I1116147 [900..7000] 1.5* +0.20 1.7*
LHCF_2012_I1115479 7000 3.2 +0.30 3.5
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 +0.18 0.31
Identified Particles : pT
 π-
 ALICE_2011_I885104 900 3.1 -0.20 2.9
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 5.8 +0.40 6.2
Identified Particles : pT
 π+
 ALICE_2011_I885104 900 3.3 -0.30 3.0
STAR_2006_I709170 200 n/a - n/a
STAR_2008_I793126 200 5.3 +0.90 6.2
Identified Particles : pT
 π+ + π-
 ALICE_2015_I1357424 7000 6.0 +0.70 6.7
ALICE_2020_I1797443 13000 11 0 11
Identified Particles : pT
 pbar
 ALICE_2011_I885104 900 4.7 +0.100 4.8
Identified Particles : pT
 p
 ALICE_2011_I885104 900 4.0 +1.1 5.1
Identified Particles : pT
 p + pbar
 ALICE_2015_I1357424 7000 3.2 0 3.2
ALICE_2020_I1797443 13000 n/a - n/a
pT Distributions
 ALICE_2010_I860416 900 4.9 - n/a
ATLAS_2010_I849050 900 6.4 +0.30 6.7
CDF_1988_I263320 [630..1800] n/a - n/a
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 18* -4.0 14*
<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 65 +16 81
Diffraction
 |t|
 ATLAS_2019_I1762584 8000 62 +6.0 68
sqrts.xsec
 ALICE_2012_I1181770 900:2760:7000 n/a - n/a
Σ(ET)
 ATLAS_2012_I1183818 7000 8.2 -0.50 7.7
CDF_2009_I817466 1960 n/a - n/a
UA1_1990_I280412 [200..900] 45 -1.0 44
Σ(ET) vs Nch
 UA1_1990_I280412 [200..900] 21 +1.0 22
Diffractive ξ
 CMS_2012_I1184941 7000 n/a - n/a
Cross sections
 ATLAS_2011_I894867 7000 2.8 -0.100 2.7
CMS_2012_I1193338 7000 1.8 -0.10 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 636 histograms.