Generator / tune

Details for Pythia 6.426 default 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 2.5 +1.9 4.4
ALEPH_2004_I636645 [91.2..206] 0.86* -0.090 0.77*
DELPHI_1996_I424112 91.2 1.9 +1.8 3.7
OPAL_2004_I669402 [91.2..197] 0.84 +0.36 1.2
C parameter
ALEPH_1996_I428072 91.2 0.95 +0.15 1.1
ALEPH_2004_I636645 [91.2..206] 0.80* +0.14 0.94*
DELPHI_1996_I424112 91.2 0.91 +0.090 1.0
OPAL_2004_I669402 [91.2..197] 0.63 +0.070 0.70
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 +1.1 2.4
OPAL_2004_I669402 [91.2..197] 1.1 +0.20 1.3
M(Heavy Hemisph)
ALEPH_1996_I428072 91.2 0.34 -0.22 0.12
ALEPH_2004_I636645 [91.2..206] 0.40* -0.10 0.30*
DELPHI_1996_I424112 91.2 0.58 -0.38 0.20
OPAL_2004_I669402 [91.2..197] 1.2 -0.100 1.1
Event-Shape Moments
Moments of MH
OPAL_2004_I669402 [91.2..197] n/a - n/a
M(Light Hemisph)
DELPHI_1996_I424112 91.2 0.48 +0.92 1.4
OPAL_2004_I669402 [91.2..197] 1.4 -0.100 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] 0.89* -0.010 0.88*
DELPHI_1996_I424112 91.2 0.28 -0.21 0.067
Event-Shape Moments
Moments of O
OPAL_2004_I669402 [91.2..197] n/a - n/a
Planarity
ALEPH_2004_I636645 [133..206] 0.35* +0.020 0.37*
DELPHI_1996_I424112 91.2 0.33 +0.27 0.60
Sphericity
ALEPH_1996_I428072 91.2 0.85 -0.26 0.59
ALEPH_2004_I636645 [91.2..206] 0.38* -0.080 0.30*
DELPHI_1996_I424112 91.2 0.54 0 0.54
OPAL_2004_I669402 [91.2..197] 0.71 -0.020 0.69
Event-Shape Moments
Moments of S
OPAL_2004_I669402 [91.2..197] n/a - n/a
Thrust
ALEPH_2004_I636645 [91.2..206] 0.70* +0.21 0.91*
Thrust Major
ALEPH_2004_I636645 [91.2..206] 0.39* -0.010 0.38*
DELPHI_1996_I424112 91.2 0.46 -0.070 0.39
OPAL_2004_I669402 [91.2..197] 0.66 -0.010 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 +1.2 3.0
ALEPH_2004_I636645 [91.2..206] 0.80* -0.11 0.69*
DELPHI_1996_I424112 91.2 1.5 +1.2 2.7
OPAL_2004_I669402 [91.2..197] 1.0 +0.30 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] 0.32* -0.030 0.29*
Jet resolution
y23
ALEPH_1996_I428072 91.2 n/a - n/a
ALEPH_2004_I636645 [91.2..206] 0.42* -0.030 0.39*
OPAL_2004_I669402 [91.2..197] 0.67 +0.040 0.71
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] 0.67* -0.11 0.56*
Jet resolution
y45
ALEPH_2004_I636645 [91.2..206] 1.0* -0.14 0.86*
Jet resolution
y56
ALEPH_2004_I636645 [91.2..206] 1.1* -0.10 1.0*
Charm and Bottom
fweak
DELPHI_2011_I890503 91.2 5.5 +0.30 5.8
OPAL_2003_I599181 91.2 7.3 +0.50 7.8
SLD_2002_I582951 91.2 2.5 +0.10 2.6
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] 0.28* -0.040 0.24*
DELPHI_1996_I424112 91.2 0.55 +0.17 0.72
OPAL_2004_I669402 [91.2..197] 0.68 +0.030 0.71
Event-Shape Moments
Moments of Btot
OPAL_2004_I669402 [91.2..197] n/a - n/a
B(Max)
ALEPH_2004_I636645 [91.2..206] 0.54* -0.060 0.48*
DELPHI_1996_I424112 91.2 0.41 -0.15 0.26
OPAL_2004_I669402 [91.2..197] 0.55 -0.050 0.50
Event-Shape Moments
Moments of Bmax
OPAL_2004_I669402 [91.2..197] n/a - n/a
B(Min)
DELPHI_1996_I424112 91.2 0.59 +0.71 1.3
OPAL_2004_I669402 [91.2..197] 0.71 +0.29 1.00
Event-Shape Moments
Moments of Bmin
OPAL_2004_I669402 [91.2..197] n/a - n/a
ΔB(Max-Min)
DELPHI_1996_I424112 91.2 0.35 +0.10 0.45
Identified Particles
(RqK--RqK+) / (RqK-+RqK+)
SLD_2004_I630327 91.2 10 0 10
Identified Particles
(Rqπ--Rqπ+) / (Rqπ-+Rqπ+)
SLD_2004_I630327 91.2 11 +3.0 14
Identified Particles
(Rqp-Rq) / (Rqp+Rq)
SLD_2004_I630327 91.2 21 -4.0 17
EEC
DELPHI_1996_I424112 91.2 0.13 +0.060 0.19
EEC Asymmetry
DELPHI_1996_I424112 91.2 1.5 -0.30 1.2
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 3.8 +0.30 4.1
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 0.11 +0.0100 0.12
HRS_1986_I18502 29 n/a - n/a
OPAL_1992_I321190 91.2 n/a - n/a
SLD_2004_I630327 91.2 0.20 +0.0100 0.21
Charged Particles
<Nch,uds> - <Nch,b>
SLD_2004_I630327 91.2 19 -3.0 16
Charged Particles
<Nch,uds> - <Nch,c>
SLD_2004_I630327 91.2 25 +4.0 29
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 2.4 +0.10 2.5
Identified Particles
ρ multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Charged Particles
pTin (Sph)
ALEPH_1996_I428072 91.2 1.5 +0.50 2.0
DELPHI_1996_I424112 91.2 2.0 +0.70 2.7
Charged Particles
pTin (Thrust)
ALEPH_2004_I636645 [133..206] 1.1* -0.10 1.0*
DELPHI_1996_I424112 91.2 1.1 +0.30 1.4
Charged Particles
pTout (Sph)
ALEPH_1996_I428072 91.2 12 +4.0 16
DELPHI_1996_I424112 91.2 13 +5.0 18
Charged Particles
pTout (Thrust)
ALEPH_2004_I636645 206 n/a - n/a
DELPHI_1996_I424112 91.2 13 +5.0 18
Charged Particles
<pTout> vs x (Thrust)
DELPHI_1996_I424112 91.2 1.4 -0.55 0.85
Charged Particles
<pT> vs x (Thrust)
DELPHI_1996_I424112 91.2 0.70 -0.25 0.45
Identified Particles
N(q→K-)+N(q̄→K+)
SLD_2004_I630327 91.2 12 -1.0 11
Identified Particles
N(q→K+)+N(q̄→K-)
SLD_2004_I630327 91.2 13 +4.0 17
Jet rates
One-jet fraction
ALEPH_2004_I636645 [91.2..206] 51* +1.0 52*
Jet rates
Two-jet fraction
ALEPH_2004_I636645 [91.2..206] 0.84* +1.2 2.0*
DELPHI_1996_I424112 91.2 0.50 -0.090 0.41
Jet rates
Three-jet fraction
ALEPH_2004_I636645 [91.2..206] 5.2* -0.10 5.1*
DELPHI_1996_I424112 91.2 2.1 +1.2 3.3
Jet rates
Four-jet fraction
ALEPH_2004_I636645 [91.2..206] 4.3* -3.0 1.3*
DELPHI_1996_I424112 91.2 2.9 +1.2 4.1
Jet rates
Five-jet fraction
ALEPH_2004_I636645 [91.2..206] 5.1* +0.20 5.3*
Jet rates
>Six-jet fraction
ALEPH_2004_I636645 [91.2..206] 1.7* -0.50 1.2*
Identified Particles
N(q→π-)+N(q̄→π+)
SLD_2004_I630327 91.2 1.5 +0.30 1.8
Identified Particles
N(q→π+)+N(q̄→π-)
SLD_2004_I630327 91.2 2.2 +0.40 2.6
Identified Particles
N(q→p̄)+N(q̄→p)
SLD_2004_I630327 91.2 n/a - 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 0.68 -0.13 0.55
ALEPH_2004_I636645 [91.2..206] 0.36* +0.080 0.44*
DELPHI_1996_I424112 91.2 0.62 -0.060 0.56
OPAL_2004_I669402 [91.2..197] 0.73 -0.100 0.63
1-Thrust
ALEPH_1996_I428072 91.2 0.60 -0.24 0.36
DELPHI_1996_I424112 91.2 0.76 -0.35 0.41
OPAL_2004_I669402 [91.2..197] 0.70 -0.050 0.65
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 1.1
ALEPH_2004_I636645 [133..206] 0.60* +0.040 0.64*
DELPHI_1996_I424112 91.2 2.0 -0.30 1.7
OPAL_1998_I472637 91.2 0.77* +0.93 1.7
SLD_2004_I630327 91.2 2.9 0 2.9
Charm and Bottom
D* spectrum
ALEPH_1999_I507422 91.2 15 +1.0 16
Charged Particles
xE (energy fraction)
ALEPH_2004_I636645 [133..206] 0.61* +0.050 0.66*
Identified Particles
K spectrum
ALEPH_1996_I428072 91.2 4.8 0 4.8
SLD_2004_I630327 91.2 8.9* -0.20 8.7*
Identified Particles
K*(892) spectrum
ALEPH_1996_I428072 91.2 7.7 +0.100 7.8
OPAL_1993_I342766 91.2 44 0 44
Identified Particles
Λ0 spectrum
ALEPH_1996_I428072 91.2 5.1 -1.0 4.1
Identified Particles
Σ(1385) spectrum
ALEPH_1996_I428072 91.2 16 0 16
DELPHI_1995_I394716 91.2 15 0 15
Identified Particles
Ξ spectrum
ALEPH_1996_I428072 91.2 4.9 -1.5 3.4
DELPHI_1995_I394716 91.2 0.41 +0.79 1.2
Identified Particles
Ξ(1530) spectrum
ALEPH_1996_I428072 91.2 36 -26 10
Identified Particles
η spectrum
ALEPH_1996_I428072 91.2 13 0 13
L3_1992_I336180 91.2 0.99 +0.010 1.0
Identified Particles
η' spectrum
ALEPH_1996_I428072 91.2 38 +1.0 39
Identified Particles
γ spectrum
ALEPH_1996_I428072 91.2 13 -1.0 12
Charged Particles
Ln(xp)
ALEPH_1996_I428072 91.2 1.1 -0.18 0.92
ALEPH_2004_I636645 [133..206] 0.66* +0.040 0.70*
DELPHI_1996_I424112 91.2 1.2 -0.100 1.1
OPAL_1998_I472637 91.2 1.0* +0.60 1.6
Identified Particles
ω(782) spectrum
ALEPH_1996_I428072 91.2 5.9 -0.60 5.3
Identified Particles
p spectrum
ALEPH_1996_I428072 91.2 3.1 -0.70 2.4
SLD_2004_I630327 91.2 22* -9.0 13*
Identified Particles
φ spectrum
ALEPH_1996_I428072 91.2 25 -1.0 24
Identified Particles
π spectrum
ALEPH_1996_I428072 91.2 0.44 +0.040 0.48
SLD_2004_I630327 91.2 1.8* +0.50 2.3
Identified Particles
ρ spectrum
ALEPH_1996_I428072 91.2 0.94 -0.050 0.89
Charged Particles
Rapidity wrt Sphericity axis
ALEPH_2004_I636645 [133..206] 0.71* -0.070 0.64*
DELPHI_1996_I424112 91.2 0.63 -0.010 0.62
Charged Particles
Rapidity wrt Thrust axis
ALEPH_1996_I428072 91.2 0.14 +0.080 0.22
ALEPH_2004_I636645 [133..206] 0.47* 0 0.47*
DELPHI_1996_I424112 91.2 0.48 -0.26 0.22

* 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.