Generator / tune

Details for Pythia 6.426 pro-q2o vs. 6.427

ee → ee : γ*/Z (hadronic)


Observable Reference Energy χ2+5% (6.426) Δ χ2+5% (6.427)
Aplanarity
ALEPH_1996_I428072 91.2 3.1 -1.0 2.1
ALEPH_2004_I636645 [91.2..206] 0.66* -0.050 0.61*
DELPHI_1996_I424112 91.2 2.5 -0.90 1.6
OPAL_2004_I669402 [91.2..197] 1.0 -0.38 0.62
C parameter
ALEPH_1996_I428072 91.2 0.69 -0.12 0.57
ALEPH_2004_I636645 [91.2..206] 0.70* 0 0.70*
DELPHI_1996_I424112 91.2 0.68 -0.11 0.57
OPAL_2004_I669402 [91.2..197] 0.75 +0.040 0.79
Event-Shape Moments
Moments of C
OPAL_2004_I669402 [91.2..197] n/a - n/a
D parameter
DELPHI_1996_I424112 91.2 1.2 -0.39 0.81
OPAL_2004_I669402 [91.2..197] 1.0 -0.16 0.84
M(Heavy Hemisph)
ALEPH_1996_I428072 91.2 0.11 +0.060 0.17
ALEPH_2004_I636645 [91.2..206] 0.30* +0.090 0.39*
DELPHI_1996_I424112 91.2 0.15 -0.040 0.11
OPAL_2004_I669402 [91.2..197] 0.94 +0.030 0.97
Event-Shape Moments
Moments of MH
OPAL_2004_I669402 [91.2..197] n/a - n/a
M(Light Hemisph)
DELPHI_1996_I424112 91.2 0.50 -0.13 0.37
OPAL_2004_I669402 [91.2..197] 1.4 +0.10 1.5
Event-Shape Moments
Moments of ML
OPAL_2004_I669402 [91.2..197] n/a - n/a
ΔM(Heavy-Light)
ALEPH_2004_I636645 [91.2..206] 0.85* +0.070 0.92*
DELPHI_1996_I424112 91.2 0.11 -0.013 0.097
Event-Shape Moments
Moments of O
OPAL_2004_I669402 [91.2..197] n/a - n/a
Planarity
ALEPH_2004_I636645 [133..206] 0.38* -0.010 0.37*
DELPHI_1996_I424112 91.2 0.58 -0.030 0.55
Sphericity
ALEPH_1996_I428072 91.2 0.32 -0.050 0.27
ALEPH_2004_I636645 [91.2..206] 0.36* -0.030 0.33*
DELPHI_1996_I424112 91.2 0.25 -0.040 0.21
OPAL_2004_I669402 [91.2..197] 0.69 -0.090 0.60
Event-Shape Moments
Moments of S
OPAL_2004_I669402 [91.2..197] n/a - n/a
Thrust
ALEPH_2004_I636645 [91.2..206] 0.68* +0.14 0.82*
Thrust Major
ALEPH_2004_I636645 [91.2..206] 0.37* -0.030 0.34*
DELPHI_1996_I424112 91.2 0.50 +0.070 0.57
OPAL_2004_I669402 [91.2..197] 0.84 -0.050 0.79
Event-Shape Moments
Moments of T Major
OPAL_2004_I669402 [91.2..197] n/a - n/a
Thrust Minor
ALEPH_1996_I428072 91.2 2.0 -0.90 1.1
ALEPH_2004_I636645 [91.2..206] 0.65* -0.020 0.63*
DELPHI_1996_I424112 91.2 1.4 -0.40 1.0
OPAL_2004_I669402 [91.2..197] 0.92 -0.20 0.72
Event-Shape Moments
Moments of T Minor
OPAL_2004_I669402 [91.2..197] n/a - n/a
Jet resolution
y12
ALEPH_2004_I636645 [91.2..206] 0.75* -0.60 0.15*
Jet resolution
y23
ALEPH_1996_I428072 91.2 0.80 -0.11 0.69
ALEPH_2004_I636645 [91.2..206] 0.34* +0.030 0.37*
OPAL_2004_I669402 [91.2..197] 0.81 -0.040 0.77
Event-Shape Moments
Moments of Y23
OPAL_2004_I669402 [91.2..197] n/a - n/a
Jet resolution
y34
ALEPH_2004_I636645 [91.2..206] 0.56* +0.020 0.58*
Jet resolution
y45
ALEPH_2004_I636645 [91.2..206] 0.85* -0.050 0.80*
Jet resolution
y56
ALEPH_2004_I636645 [91.2..206] 1.0* -0.080 0.92*
Charm and Bottom
fweak
DELPHI_2011_I890503 91.2 5.8 -0.30 5.5
OPAL_2003_I599181 91.2 3.4 -0.50 2.9
SLD_2002_I582951 91.2 1.3 0 1.3
Charm and Bottom
Mean of fweak
DELPHI_2011_I890503 91.2 n/a - n/a
OPAL_2003_I599181 91.2 n/a - n/a
B(Total)
ALEPH_2004_I636645 [91.2..206] 0.25* -0.010 0.24*
DELPHI_1996_I424112 91.2 0.38 -0.050 0.33
OPAL_2004_I669402 [91.2..197] 0.68 -0.020 0.66
Event-Shape Moments
Moments of Btot
OPAL_2004_I669402 [91.2..197] n/a - n/a
B(Max)
ALEPH_2004_I636645 [91.2..206] 0.35* +0.10 0.45*
DELPHI_1996_I424112 91.2 0.30 -0.100 0.20
OPAL_2004_I669402 [91.2..197] 0.55 0 0.55
Event-Shape Moments
Moments of Bmax
OPAL_2004_I669402 [91.2..197] n/a - n/a
B(Min)
DELPHI_1996_I424112 91.2 0.34 -0.090 0.25
OPAL_2004_I669402 [91.2..197] 0.79 -0.090 0.70
Event-Shape Moments
Moments of Bmin
OPAL_2004_I669402 [91.2..197] n/a - n/a
ΔB(Max-Min)
DELPHI_1996_I424112 91.2 0.45 -0.17 0.28
Identified Particles
(RqK--RqK+) / (RqK-+RqK+)
SLD_2004_I630327 91.2 13 +1.0 14
Identified Particles
(Rqπ--Rqπ+) / (Rqπ-+Rqπ+)
SLD_2004_I630327 91.2 15 0 15
Identified Particles
(Rqp-Rq) / (Rqp+Rq)
SLD_2004_I630327 91.2 16 0 16
EEC
DELPHI_1996_I424112 91.2 0.13 -0.010 0.12
EEC Asymmetry
DELPHI_1996_I424112 91.2 1.5 -0.20 1.3
Charm and Bottom
B multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Charm and Bottom
D multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Identified Particles
Δ++ multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Charm and Bottom
D* multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Identified Particles
K multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
SLD_2004_I630327 91.2 1.2 -0.100 1.1
Identified Particles
K*(892) multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Identified Particles
Λ0 multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Charm and Bottom
Λb multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Identified Particles
Ω multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Identified Particles
Σ(1385) multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Identified Particles
Ξ multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Identified Particles
Ξ(1530) multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Charged Particles
Multiplicity Distribution
ALEPH_1996_I428072 91.2 n/a - n/a
DELPHI_1991_I301657 91.2 n/a - n/a
DELPHI_1996_I424112 91.2 n/a - n/a
HRS_1986_I18502 29 n/a - n/a
OPAL_1992_I321190 91.2 n/a - n/a
TASSO_1989_I277658 [14..43.6] n/a - n/a
Charged Particles
<Nch>
DELPHI_1991_I301657 91.2 0.061 -0.0040 0.057
HRS_1986_I18502 29 n/a - n/a
OPAL_1992_I321190 91.2 n/a - n/a
SLD_2004_I630327 91.2 0.10 -0.027 0.073
Charged Particles
<Nch,uds> - <Nch,b>
SLD_2004_I630327 91.2 5.0 +0.50 5.5
Charged Particles
<Nch,uds> - <Nch,c>
SLD_2004_I630327 91.2 47 -20 27
Identified Particles
η multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Identified Particles
η' multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Identified Particles
p multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
SLD_2004_I630327 91.2 5.3 0 5.3
Identified Particles
φ multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Identified Particles
π multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
SLD_2004_I630327 91.2 2.8 0 2.8
Identified Particles
ρ multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Charged Particles
pTin (Sph)
ALEPH_1996_I428072 91.2 0.53 +0.050 0.58
DELPHI_1996_I424112 91.2 0.79 +0.090 0.88
Charged Particles
pTin (Thrust)
ALEPH_2004_I636645 [133..206] 1.1* 0 1.1*
DELPHI_1996_I424112 91.2 0.18 +0.18 0.36
Charged Particles
pTout (Sph)
ALEPH_1996_I428072 91.2 13 -2.0 11
DELPHI_1996_I424112 91.2 14 -2.0 12
Charged Particles
pTout (Thrust)
ALEPH_2004_I636645 206 n/a - n/a
DELPHI_1996_I424112 91.2 12 -1.0 11
Charged Particles
<pTout> vs x (Thrust)
DELPHI_1996_I424112 91.2 0.81 +0.020 0.83
Charged Particles
<pT> vs x (Thrust)
DELPHI_1996_I424112 91.2 0.32 +0.18 0.50
Identified Particles
N(q→K-)+N(q̄→K+)
SLD_2004_I630327 91.2 12 +1.0 13
Identified Particles
N(q→K+)+N(q̄→K-)
SLD_2004_I630327 91.2 33 -2.0 31
Jet rates
One-jet fraction
ALEPH_2004_I636645 [91.2..206] 49* +2.0 51*
Jet rates
Two-jet fraction
ALEPH_2004_I636645 [91.2..206] 0.92* +1.1 2.0*
DELPHI_1996_I424112 91.2 0.52 -0.040 0.48
Jet rates
Three-jet fraction
ALEPH_2004_I636645 [91.2..206] 5.3* 0 5.3*
DELPHI_1996_I424112 91.2 2.0 -0.60 1.4
Jet rates
Four-jet fraction
ALEPH_2004_I636645 [91.2..206] 3.5* +0.20 3.7*
DELPHI_1996_I424112 91.2 2.6 -1.1 1.5
Jet rates
Five-jet fraction
ALEPH_2004_I636645 [91.2..206] 4.0* +0.100 4.1*
Jet rates
>Six-jet fraction
ALEPH_2004_I636645 [91.2..206] 1.8* +0.100 1.9*
Identified Particles
N(q→π-)+N(q̄→π+)
SLD_2004_I630327 91.2 2.6 +0.10 2.7
Identified Particles
N(q→π+)+N(q̄→π-)
SLD_2004_I630327 91.2 5.2 -0.10 5.1
Identified Particles
N(q→p̄)+N(q̄→p)
SLD_2004_I630327 91.2 37 +6.0 43
Identified Particles
N(q→p)+N(q̄→p̄)
SLD_2004_I630327 91.2 9.5 +0.30 9.8
Thrust Oblateness
ALEPH_1996_I428072 91.2 0.85 -0.080 0.77
ALEPH_2004_I636645 [91.2..206] 0.27* +0.050 0.32*
DELPHI_1996_I424112 91.2 0.80 +0.010 0.81
OPAL_2004_I669402 [91.2..197] 0.82 -0.070 0.75
1-Thrust
ALEPH_1996_I428072 91.2 0.29 +0.060 0.35
DELPHI_1996_I424112 91.2 0.16 +0.15 0.31
OPAL_2004_I669402 [91.2..197] 0.79 +0.12 0.91
Event-Shape Moments
Moments of 1-T
OPAL_2004_I669402 [91.2..197] n/a - n/a
Charged Particles
xp (momentum fraction)
ALEPH_1996_I428072 91.2 0.68 +0.030 0.71
ALEPH_2004_I636645 [133..206] 0.62* -0.030 0.59*
DELPHI_1996_I424112 91.2 0.21 -0.050 0.16
OPAL_1998_I472637 91.2 1.4 +0.10 1.5
SLD_2004_I630327 91.2 3.1 +0.10 3.2
Charm and Bottom
D* spectrum
ALEPH_1999_I507422 91.2 7.0 -0.30 6.7
Charged Particles
xE (energy fraction)
ALEPH_2004_I636645 [133..206] 0.64* -0.030 0.61*
Identified Particles
K spectrum
ALEPH_1996_I428072 91.2 2.0 +0.10 2.1
SLD_2004_I630327 91.2 12* +2.0 14*
Identified Particles
K*(892) spectrum
ALEPH_1996_I428072 91.2 0.82 +0.060 0.88
OPAL_1993_I342766 91.2 35 -1.0 34
Identified Particles
Λ0 spectrum
ALEPH_1996_I428072 91.2 4.8 +0.40 5.2
Identified Particles
Σ(1385) spectrum
ALEPH_1996_I428072 91.2 17 +2.0 19
DELPHI_1995_I394716 91.2 1.5 +0.30 1.8
Identified Particles
Ξ spectrum
ALEPH_1996_I428072 91.2 5.3 -0.100 5.2
DELPHI_1995_I394716 91.2 1.1 -0.14 0.96
Identified Particles
Ξ(1530) spectrum
ALEPH_1996_I428072 91.2 44 +4.0 48
Identified Particles
η spectrum
ALEPH_1996_I428072 91.2 21 -4.0 17
L3_1992_I336180 91.2 1.2 -0.100 1.1
Identified Particles
η' spectrum
ALEPH_1996_I428072 91.2 13 +2.0 15
Identified Particles
γ spectrum
ALEPH_1996_I428072 91.2 7.6 +1.2 8.8
Charged Particles
Ln(xp)
ALEPH_1996_I428072 91.2 0.44 +0.030 0.47
ALEPH_2004_I636645 [133..206] 0.68* 0 0.68*
DELPHI_1996_I424112 91.2 0.22 -0.050 0.17
OPAL_1998_I472637 91.2 1.5 +0.20 1.7*
Identified Particles
ω(782) spectrum
ALEPH_1996_I428072 91.2 0.98 +0.12 1.1
Identified Particles
p spectrum
ALEPH_1996_I428072 91.2 1.4 -0.30 1.1
SLD_2004_I630327 91.2 13* -5.7 7.3*
Identified Particles
φ spectrum
ALEPH_1996_I428072 91.2 2.9 -0.20 2.7
Identified Particles
π spectrum
ALEPH_1996_I428072 91.2 0.57 -0.080 0.49
SLD_2004_I630327 91.2 2.7 +0.100 2.8
Identified Particles
ρ spectrum
ALEPH_1996_I428072 91.2 2.5 +0.30 2.8
Charged Particles
Rapidity wrt Sphericity axis
ALEPH_2004_I636645 [133..206] 0.73* +0.010 0.74*
DELPHI_1996_I424112 91.2 0.23 +0.0100 0.24
Charged Particles
Rapidity wrt Thrust axis
ALEPH_1996_I428072 91.2 0.25 +0.15 0.40
ALEPH_2004_I636645 [133..206] 0.44* -0.020 0.42*
DELPHI_1996_I424112 91.2 0.11 +0.070 0.18

* 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 742 histograms.