Generator / tune

Details for Pythia 6.427 default 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 4.4 -1.6 2.8
ALEPH_2004_I636645 [91.2..206] 0.77* -0.020 0.75*
DELPHI_1996_I424112 91.2 3.7 -1.7 2.0
OPAL_2004_I669402 [91.2..197] 1.2 -0.100 1.1
C parameter
ALEPH_1996_I428072 91.2 1.1 -0.32 0.78
ALEPH_2004_I636645 [91.2..206] 0.94* +0.050 0.99*
DELPHI_1996_I424112 91.2 1.0 -0.32 0.68
OPAL_2004_I669402 [91.2..197] 0.70 +0.010 0.71
Event-Shape Moments
Moments of C
OPAL_2004_I669402 [91.2..197] n/a - n/a
D parameter
DELPHI_1996_I424112 91.2 2.4 -1.4 1.0
OPAL_2004_I669402 [91.2..197] 1.3 -0.35 0.95
M(Heavy Hemisph)
ALEPH_1996_I428072 91.2 0.12 +0.010 0.13
ALEPH_2004_I636645 [91.2..206] 0.30* +0.040 0.34*
DELPHI_1996_I424112 91.2 0.20 +0.070 0.27
OPAL_2004_I669402 [91.2..197] 1.1 +0.20 1.3
Event-Shape Moments
Moments of MH
OPAL_2004_I669402 [91.2..197] n/a - n/a
M(Light Hemisph)
DELPHI_1996_I424112 91.2 1.4 -0.64 0.76
OPAL_2004_I669402 [91.2..197] 1.3 0 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* -0.060 0.82*
DELPHI_1996_I424112 91.2 0.067 +0.093 0.16
Event-Shape Moments
Moments of O
OPAL_2004_I669402 [91.2..197] n/a - n/a
Planarity
ALEPH_2004_I636645 [133..206] 0.37* 0 0.37*
DELPHI_1996_I424112 91.2 0.60 -0.28 0.32
Sphericity
ALEPH_1996_I428072 91.2 0.59 +0.19 0.78
ALEPH_2004_I636645 [91.2..206] 0.30* +0.030 0.33*
DELPHI_1996_I424112 91.2 0.54 -0.030 0.51
OPAL_2004_I669402 [91.2..197] 0.69 +0.080 0.77
Event-Shape Moments
Moments of S
OPAL_2004_I669402 [91.2..197] n/a - n/a
Thrust
ALEPH_2004_I636645 [91.2..206] 0.91* -0.060 0.85*
Thrust Major
ALEPH_2004_I636645 [91.2..206] 0.38* +0.010 0.39*
DELPHI_1996_I424112 91.2 0.39 +0.41 0.80
OPAL_2004_I669402 [91.2..197] 0.65 +0.060 0.71
Event-Shape Moments
Moments of T Major
OPAL_2004_I669402 [91.2..197] n/a - n/a
Thrust Minor
ALEPH_1996_I428072 91.2 3.0 - n/a
ALEPH_2004_I636645 [91.2..206] 0.69* 0 0.69*
DELPHI_1996_I424112 91.2 2.7 -1.1 1.6
OPAL_2004_I669402 [91.2..197] 1.3 0 1.3
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] 0.29* -0.020 0.27*
Jet resolution
y23
ALEPH_1996_I428072 91.2 n/a - 0.74
ALEPH_2004_I636645 [91.2..206] 0.39* +0.010 0.40*
OPAL_2004_I669402 [91.2..197] 0.71 +0.070 0.78
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* -0.010 0.55*
Jet resolution
y45
ALEPH_2004_I636645 [91.2..206] 0.86* +0.080 0.94*
Jet resolution
y56
ALEPH_2004_I636645 [91.2..206] 1.0* +0.10 1.1*
Charm and Bottom
fweak
DELPHI_2011_I890503 91.2 5.8 +0.30 6.1
OPAL_2003_I599181 91.2 7.8 +0.80 8.6
SLD_2002_I582951 91.2 2.6 +0.50 3.1
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] 0.24* +0.020 0.26*
DELPHI_1996_I424112 91.2 0.72 +0.58 1.3
OPAL_2004_I669402 [91.2..197] 0.71 +0.050 0.76
Event-Shape Moments
Moments of Btot
OPAL_2004_I669402 [91.2..197] n/a - n/a
B(Max)
ALEPH_2004_I636645 [91.2..206] 0.48* -0.020 0.46*
DELPHI_1996_I424112 91.2 0.26 +0.19 0.45
OPAL_2004_I669402 [91.2..197] 0.50 +0.100 0.60
Event-Shape Moments
Moments of Bmax
OPAL_2004_I669402 [91.2..197] n/a - n/a
B(Min)
DELPHI_1996_I424112 91.2 1.3 -0.56 0.74
OPAL_2004_I669402 [91.2..197] 1.00 -0.25 0.75
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 +0.14 0.59
Identified Particles
(RqK--RqK+) / (RqK-+RqK+)
SLD_2004_I630327 91.2 10 +1.0 11
Identified Particles
(Rqπ--Rqπ+) / (Rqπ-+Rqπ+)
SLD_2004_I630327 91.2 14 -2.0 12
Identified Particles
(Rqp-Rq) / (Rqp+Rq)
SLD_2004_I630327 91.2 17 +3.0 20
EEC
DELPHI_1996_I424112 91.2 0.19 -0.050 0.14
EEC Asymmetry
DELPHI_1996_I424112 91.2 1.2 +1.2 2.4
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 4.1 +0.10 4.2
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 +0.020 0.14
HRS_1986_I18502 29 n/a - n/a
OPAL_1992_I321190 91.2 n/a - n/a
SLD_2004_I630327 91.2 0.21 +0.040 0.25
Charged Particles
<Nch,uds> - <Nch,b>
SLD_2004_I630327 91.2 16 +3.0 19
Charged Particles
<Nch,uds> - <Nch,c>
SLD_2004_I630327 91.2 29 -5.0 24
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 13 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 2.6
Identified Particles
ρ multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Charged Particles
pTin (Sph)
ALEPH_1996_I428072 91.2 2.0 -0.90 1.1
DELPHI_1996_I424112 91.2 2.7 -0.90 1.8
Charged Particles
pTin (Thrust)
ALEPH_2004_I636645 [133..206] 1.0* 0 1.00*
DELPHI_1996_I424112 91.2 1.4 -0.42 0.98
Charged Particles
pTout (Sph)
ALEPH_1996_I428072 91.2 16 -2.0 14
DELPHI_1996_I424112 91.2 18 -3.0 15
Charged Particles
pTout (Thrust)
ALEPH_2004_I636645 206 n/a - n/a
DELPHI_1996_I424112 91.2 18 -5.0 13
Charged Particles
<pTout> vs x (Thrust)
DELPHI_1996_I424112 91.2 0.85 -0.010 0.84
Charged Particles
<pT> vs x (Thrust)
DELPHI_1996_I424112 91.2 0.45 +0.30 0.75
Identified Particles
N(q→K-)+N(q̄→K+)
SLD_2004_I630327 91.2 11 +3.0 14
Identified Particles
N(q→K+)+N(q̄→K-)
SLD_2004_I630327 91.2 17 -4.0 13
Jet rates
One-jet fraction
ALEPH_2004_I636645 [91.2..206] 52* -4.0 48*
Jet rates
Two-jet fraction
ALEPH_2004_I636645 [91.2..206] 2.0* -1.2 0.81*
DELPHI_1996_I424112 91.2 0.41 +0.18 0.59
Jet rates
Three-jet fraction
ALEPH_2004_I636645 [91.2..206] 5.1* +0.80 5.9*
DELPHI_1996_I424112 91.2 3.3 -1.1 2.2
Jet rates
Four-jet fraction
ALEPH_2004_I636645 [91.2..206] 1.3* 0 1.3*
DELPHI_1996_I424112 91.2 4.1 -2.2 1.9
Jet rates
Five-jet fraction
ALEPH_2004_I636645 [91.2..206] 5.3* +0.20 5.5*
Jet rates
>Six-jet fraction
ALEPH_2004_I636645 [91.2..206] 1.2* +0.60 1.8*
Identified Particles
N(q→π-)+N(q̄→π+)
SLD_2004_I630327 91.2 1.8 0 1.8
Identified Particles
N(q→π+)+N(q̄→π-)
SLD_2004_I630327 91.2 2.6 -0.60 2.0
Identified Particles
N(q→p̄)+N(q̄→p)
SLD_2004_I630327 91.2 n/a - 34
Identified Particles
N(q→p)+N(q̄→p̄)
SLD_2004_I630327 91.2 17 0 17
Thrust Oblateness
ALEPH_1996_I428072 91.2 0.55 +0.31 0.86
ALEPH_2004_I636645 [91.2..206] 0.44* -0.070 0.37*
DELPHI_1996_I424112 91.2 0.56 +0.35 0.91
OPAL_2004_I669402 [91.2..197] 0.63 +0.25 0.88
1-Thrust
ALEPH_1996_I428072 91.2 0.36 +0.12 0.48
DELPHI_1996_I424112 91.2 0.41 +0.10 0.51
OPAL_2004_I669402 [91.2..197] 0.65 +0.19 0.84
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 1.1 +0.60 1.7
ALEPH_2004_I636645 [133..206] 0.64* -0.050 0.59*
DELPHI_1996_I424112 91.2 1.7 +0.60 2.3
OPAL_1998_I472637 91.2 1.7 +0.50 2.2*
SLD_2004_I630327 91.2 2.9 -0.50 2.4*
Charm and Bottom
D* spectrum
ALEPH_1999_I507422 91.2 16 +1.0 17
Charged Particles
xE (energy fraction)
ALEPH_2004_I636645 [133..206] 0.66* -0.060 0.60*
Identified Particles
K spectrum
ALEPH_1996_I428072 91.2 4.8 +0.70 5.5
SLD_2004_I630327 91.2 8.7* +2.3 11*
Identified Particles
K*(892) spectrum
ALEPH_1996_I428072 91.2 7.8 +0.20 8.0
OPAL_1993_I342766 91.2 44 0 44
Identified Particles
Λ0 spectrum
ALEPH_1996_I428072 91.2 4.1 +0.80 4.9
Identified Particles
Σ(1385) spectrum
ALEPH_1996_I428072 91.2 16 +1.0 17
DELPHI_1995_I394716 91.2 15 +1.0 16
Identified Particles
Ξ spectrum
ALEPH_1996_I428072 91.2 3.4 -0.40 3.0
DELPHI_1995_I394716 91.2 1.2 0 1.2
Identified Particles
Ξ(1530) spectrum
ALEPH_1996_I428072 91.2 10 +3.0 13
Identified Particles
η spectrum
ALEPH_1996_I428072 91.2 13 +1.0 14
L3_1992_I336180 91.2 1.0 0 1.00
Identified Particles
η' spectrum
ALEPH_1996_I428072 91.2 39 -1.0 38
Identified Particles
γ spectrum
ALEPH_1996_I428072 91.2 12 0 12
Charged Particles
Ln(xp)
ALEPH_1996_I428072 91.2 0.92 +0.38 1.3
ALEPH_2004_I636645 [133..206] 0.70* -0.030 0.67*
DELPHI_1996_I424112 91.2 1.1 +0.40 1.5
OPAL_1998_I472637 91.2 1.6 -0.50 1.1*
Identified Particles
ω(782) spectrum
ALEPH_1996_I428072 91.2 5.3 +0.30 5.6
Identified Particles
p spectrum
ALEPH_1996_I428072 91.2 2.4 0 2.4
SLD_2004_I630327 91.2 13* 0 13*
Identified Particles
φ spectrum
ALEPH_1996_I428072 91.2 24 0 24
Identified Particles
π spectrum
ALEPH_1996_I428072 91.2 0.48 -0.020 0.46
SLD_2004_I630327 91.2 2.3 -1.7 0.58*
Identified Particles
ρ spectrum
ALEPH_1996_I428072 91.2 0.89 +0.050 0.94
Charged Particles
Rapidity wrt Sphericity axis
ALEPH_2004_I636645 [133..206] 0.64* +0.050 0.69*
DELPHI_1996_I424112 91.2 0.62 +0.19 0.81
Charged Particles
Rapidity wrt Thrust axis
ALEPH_1996_I428072 91.2 0.22 -0.010 0.21
ALEPH_2004_I636645 [133..206] 0.47* +0.020 0.49*
DELPHI_1996_I424112 91.2 0.22 +0.11 0.33

* 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.