Generator / tune

Details for Pythia 6.427 a vs. 6.428

ee → ee : γ*/Z (hadronic)


Observable Reference Energy χ2+5% (6.427) Δ χ2+5% (6.428)
Aplanarity
ALEPH_1996_I428072 91.2 2.6 +0.70 3.3
ALEPH_2004_I636645 [91.2..206] 0.80* +0.020 0.82*
DELPHI_1996_I424112 91.2 1.8 +0.70 2.5
OPAL_2004_I669402 [91.2..197] 0.97 +0.13 1.1
C parameter
ALEPH_1996_I428072 91.2 0.95 -0.20 0.75
ALEPH_2004_I636645 [91.2..206] 0.68* +0.15 0.83*
DELPHI_1996_I424112 91.2 0.66 -0.010 0.65
OPAL_2004_I669402 [91.2..197] 0.78 -0.20 0.58
Event-Shape Moments
Moments of C
OPAL_2004_I669402 [91.2..197] n/a - n/a
D parameter
DELPHI_1996_I424112 91.2 1.3 +0.70 2.0
OPAL_2004_I669402 [91.2..197] 0.99 +0.21 1.2
M(Heavy Hemisph)
ALEPH_1996_I428072 91.2 0.16 +0.030 0.19
ALEPH_2004_I636645 [91.2..206] 0.36* -0.020 0.34*
DELPHI_1996_I424112 91.2 0.29 +0.010 0.30
OPAL_2004_I669402 [91.2..197] 1.1 +0.100 1.2
Event-Shape Moments
Moments of MH
OPAL_2004_I669402 [91.2..197] n/a - n/a
M(Light Hemisph)
DELPHI_1996_I424112 91.2 0.72 +0.20 0.92
OPAL_2004_I669402 [91.2..197] 1.2 +0.10 1.3
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] 0.88* +0.12 1.0*
DELPHI_1996_I424112 91.2 0.29 +0.060 0.35
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 0.38*
DELPHI_1996_I424112 91.2 0.32 +0.27 0.59
Sphericity
ALEPH_1996_I428072 91.2 0.58 -0.12 0.46
ALEPH_2004_I636645 [91.2..206] 0.35* -0.030 0.32*
DELPHI_1996_I424112 91.2 0.41 -0.080 0.33
OPAL_2004_I669402 [91.2..197] 0.71 0 0.71
Event-Shape Moments
Moments of S
OPAL_2004_I669402 [91.2..197] n/a - n/a
Thrust
ALEPH_2004_I636645 [91.2..206] 0.63* +0.26 0.89*
Thrust Major
ALEPH_2004_I636645 [91.2..206] 0.33* +0.070 0.40*
DELPHI_1996_I424112 91.2 0.28 +0.15 0.43
OPAL_2004_I669402 [91.2..197] 0.67 -0.020 0.65
Event-Shape Moments
Moments of T Major
OPAL_2004_I669402 [91.2..197] n/a - n/a
Thrust Minor
ALEPH_1996_I428072 91.2 1.8 +0.40 2.2
ALEPH_2004_I636645 [91.2..206] 0.64* +0.040 0.68*
DELPHI_1996_I424112 91.2 1.5 +0.40 1.9
OPAL_2004_I669402 [91.2..197] 1.3 +0.100 1.4
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] 0.62* -0.18 0.44*
Jet resolution
y23
ALEPH_1996_I428072 91.2 n/a - 0.84
ALEPH_2004_I636645 [91.2..206] 0.37* +0.010 0.38*
OPAL_2004_I669402 [91.2..197] 0.68 +0.12 0.80
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] 0.57* +0.050 0.62*
Jet resolution
y45
ALEPH_2004_I636645 [91.2..206] 0.91* +0.020 0.93*
Jet resolution
y56
ALEPH_2004_I636645 [91.2..206] 0.95* +0.15 1.1*
Charm and Bottom
fweak
DELPHI_2011_I890503 91.2 6.1 -0.40 5.7
OPAL_2003_I599181 91.2 8.0 0 8.0
SLD_2002_I582951 91.2 2.8 +0.10 2.9
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] 0.21* +0.010 0.22*
DELPHI_1996_I424112 91.2 0.43 -0.090 0.34
OPAL_2004_I669402 [91.2..197] 0.68 +0.020 0.70
Event-Shape Moments
Moments of Btot
OPAL_2004_I669402 [91.2..197] n/a - n/a
B(Max)
ALEPH_2004_I636645 [91.2..206] 0.52* +0.020 0.54*
DELPHI_1996_I424112 91.2 0.31 0 0.31
OPAL_2004_I669402 [91.2..197] 0.53 0 0.53
Event-Shape Moments
Moments of Bmax
OPAL_2004_I669402 [91.2..197] n/a - n/a
B(Min)
DELPHI_1996_I424112 91.2 1.0 -0.040 0.96
OPAL_2004_I669402 [91.2..197] 0.75 +0.050 0.80
Event-Shape Moments
Moments of Bmin
OPAL_2004_I669402 [91.2..197] n/a - n/a
ΔB(Max-Min)
DELPHI_1996_I424112 91.2 0.41 +0.29 0.70
Identified Particles
(RqK--RqK+) / (RqK-+RqK+)
SLD_2004_I630327 91.2 11 0 11
Identified Particles
(Rqπ--Rqπ+) / (Rqπ-+Rqπ+)
SLD_2004_I630327 91.2 12 0 12
Identified Particles
(Rqp-Rq) / (Rqp+Rq)
SLD_2004_I630327 91.2 n/a - 19
EEC
DELPHI_1996_I424112 91.2 0.14 +0.020 0.16
EEC Asymmetry
DELPHI_1996_I424112 91.2 1.3 +1.5 2.8
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 4.0 0 4.0
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 0.12 0 0.12
HRS_1986_I18502 29 n/a - n/a
OPAL_1992_I321190 91.2 n/a - n/a
SLD_2004_I630327 91.2 0.21 -0.0100 0.20
Charged Particles
<Nch,uds> - <Nch,b>
SLD_2004_I630327 91.2 18 -2.0 16
Charged Particles
<Nch,uds> - <Nch,c>
SLD_2004_I630327 91.2 26 -10 16
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 14 -1.0 13
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 2.5 -0.10 2.4
Identified Particles
ρ multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Charged Particles
pTin (Sph)
ALEPH_1996_I428072 91.2 1.4 -0.48 0.92
DELPHI_1996_I424112 91.2 2.1 -0.70 1.4
Charged Particles
pTin (Thrust)
ALEPH_2004_I636645 [133..206] 1.0* 0 1.0*
DELPHI_1996_I424112 91.2 1.5 -0.61 0.89
Charged Particles
pTout (Sph)
ALEPH_1996_I428072 91.2 12 +1.0 13
DELPHI_1996_I424112 91.2 14 0 14
Charged Particles
pTout (Thrust)
ALEPH_2004_I636645 206 n/a - n/a
DELPHI_1996_I424112 91.2 14 +1.0 15
Charged Particles
<pTout> vs x (Thrust)
DELPHI_1996_I424112 91.2 0.96 +0.010 0.97
Charged Particles
<pT> vs x (Thrust)
DELPHI_1996_I424112 91.2 1.0 -0.29 0.71
Identified Particles
N(q→K-)+N(q̄→K+)
SLD_2004_I630327 91.2 12 +3.0 15
Identified Particles
N(q→K+)+N(q̄→K-)
SLD_2004_I630327 91.2 15 -1.0 14
Jet rates
One-jet fraction
ALEPH_2004_I636645 [91.2..206] n/a - 49*
Jet rates
Two-jet fraction
ALEPH_2004_I636645 [91.2..206] 0.86* +0.010 0.87*
DELPHI_1996_I424112 91.2 0.33 +0.33 0.66
Jet rates
Three-jet fraction
ALEPH_2004_I636645 [91.2..206] 5.0* +0.70 5.7*
DELPHI_1996_I424112 91.2 2.6 +0.40 3.0
Jet rates
Four-jet fraction
ALEPH_2004_I636645 [91.2..206] 1.4* +2.7 4.1*
DELPHI_1996_I424112 91.2 3.4 +0.40 3.8
Jet rates
Five-jet fraction
ALEPH_2004_I636645 [91.2..206] 4.7* +0.20 4.9*
Jet rates
>Six-jet fraction
ALEPH_2004_I636645 [91.2..206] 1.2* +0.50 1.7*
Identified Particles
N(q→π-)+N(q̄→π+)
SLD_2004_I630327 91.2 1.9 0 1.9
Identified Particles
N(q→π+)+N(q̄→π-)
SLD_2004_I630327 91.2 2.3 -0.100 2.2
Identified Particles
N(q→p̄)+N(q̄→p)
SLD_2004_I630327 91.2 34 - n/a
Identified Particles
N(q→p)+N(q̄→p̄)
SLD_2004_I630327 91.2 17 0 17
Thrust Oblateness
ALEPH_1996_I428072 91.2 0.52 +0.58 1.1
ALEPH_2004_I636645 [91.2..206] 0.33* +0.050 0.38*
DELPHI_1996_I424112 91.2 0.47 +0.73 1.2
OPAL_2004_I669402 [91.2..197] 0.66 +0.16 0.82
1-Thrust
ALEPH_1996_I428072 91.2 0.24 +0.10 0.34
DELPHI_1996_I424112 91.2 n/a - 0.35
OPAL_2004_I669402 [91.2..197] 0.74 -0.080 0.66
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 1.3 +0.20 1.5
ALEPH_2004_I636645 [133..206] 0.60* 0 0.60*
DELPHI_1996_I424112 91.2 1.8 +0.30 2.1
OPAL_1998_I472637 91.2 1.7 0 1.7
SLD_2004_I630327 91.2 3.2 +0.100 3.3
Charm and Bottom
D* spectrum
ALEPH_1999_I507422 91.2 16 0 16
Charged Particles
xE (energy fraction)
ALEPH_2004_I636645 [133..206] 0.61* +0.010 0.62*
Identified Particles
K spectrum
ALEPH_1996_I428072 91.2 4.8 0 4.8
SLD_2004_I630327 91.2 10* +1.0 11
Identified Particles
K*(892) spectrum
ALEPH_1996_I428072 91.2 7.8 +0.10 7.9
OPAL_1993_I342766 91.2 43 +2.0 45
Identified Particles
Λ0 spectrum
ALEPH_1996_I428072 91.2 5.8 -0.100 5.7
Identified Particles
Σ(1385) spectrum
ALEPH_1996_I428072 91.2 16 +1.0 17
DELPHI_1995_I394716 91.2 16 0 16
Identified Particles
Ξ spectrum
ALEPH_1996_I428072 91.2 2.3 +0.80 3.1
DELPHI_1995_I394716 91.2 0.91 -0.030 0.88
Identified Particles
Ξ(1530) spectrum
ALEPH_1996_I428072 91.2 11 +6.0 17
Identified Particles
η spectrum
ALEPH_1996_I428072 91.2 14 0 14
L3_1992_I336180 91.2 0.96 +0.010 0.97
Identified Particles
η' spectrum
ALEPH_1996_I428072 91.2 37 +2.0 39
Identified Particles
γ spectrum
ALEPH_1996_I428072 91.2 12 0 12
Charged Particles
Ln(xp)
ALEPH_1996_I428072 91.2 1.1 +0.20 1.3
ALEPH_2004_I636645 [133..206] 0.67* +0.020 0.69*
DELPHI_1996_I424112 91.2 1.1 +0.20 1.3
OPAL_1998_I472637 91.2 1.6 +0.100 1.7
Identified Particles
ω(782) spectrum
ALEPH_1996_I428072 91.2 4.9 +0.100 5.0
Identified Particles
p spectrum
ALEPH_1996_I428072 91.2 3.1 -0.50 2.6
SLD_2004_I630327 91.2 13* +1.0 14*
Identified Particles
φ spectrum
ALEPH_1996_I428072 91.2 25 -1.0 24
Identified Particles
π spectrum
ALEPH_1996_I428072 91.2 0.45 0 0.45
SLD_2004_I630327 91.2 2.2 0 2.2
Identified Particles
ρ spectrum
ALEPH_1996_I428072 91.2 0.76 +0.010 0.77
Charged Particles
Rapidity wrt Sphericity axis
ALEPH_2004_I636645 [133..206] 0.67* -0.020 0.65*
DELPHI_1996_I424112 91.2 0.93 -0.050 0.88
Charged Particles
Rapidity wrt Thrust axis
ALEPH_1996_I428072 91.2 0.24 -0.080 0.16
ALEPH_2004_I636645 [133..206] 0.48* -0.040 0.44*
DELPHI_1996_I424112 91.2 0.33 +0.21 0.54

* 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.