Generator / tune

Details for Pythia 6.426 ambt1 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 7.0 0 7.0
ALEPH_2004_I636645 [91.2..206] 1.9* +0.20 2.1*
DELPHI_1996_I424112 91.2 5.7 -0.30 5.4
OPAL_2004_I669402 [91.2..197] 4.4 +0.40 4.8
C parameter
ALEPH_1996_I428072 91.2 3.4 0 3.4
ALEPH_2004_I636645 [91.2..206] 2.3* 0 2.3*
DELPHI_1996_I424112 91.2 5.1 +0.30 5.4
OPAL_2004_I669402 [91.2..197] 6.6 +0.60 7.2
Event-Shape Moments
Moments of C
OPAL_2004_I669402 [91.2..197] n/a - n/a
D parameter
DELPHI_1996_I424112 91.2 7.3 -1.3 6.0
OPAL_2004_I669402 [91.2..197] 3.5 +0.10 3.6
M(Heavy Hemisph)
ALEPH_1996_I428072 91.2 2.4 0 2.4
ALEPH_2004_I636645 [91.2..206] 0.45* -0.050 0.40*
DELPHI_1996_I424112 91.2 4.0 +0.100 4.1
OPAL_2004_I669402 [91.2..197] 5.8 -0.20 5.6
Event-Shape Moments
Moments of MH
OPAL_2004_I669402 [91.2..197] n/a - n/a
M(Light Hemisph)
DELPHI_1996_I424112 91.2 8.0 -0.100 7.9
OPAL_2004_I669402 [91.2..197] 7.2 +0.20 7.4
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 0.78*
DELPHI_1996_I424112 91.2 1.1 +0.60 1.7
Event-Shape Moments
Moments of O
OPAL_2004_I669402 [91.2..197] n/a - n/a
Planarity
ALEPH_2004_I636645 [133..206] 0.50* -0.010 0.49*
DELPHI_1996_I424112 91.2 0.80 -0.010 0.79
Sphericity
ALEPH_1996_I428072 91.2 2.7 +0.30 3.0
ALEPH_2004_I636645 [91.2..206] 0.56* -0.010 0.55*
DELPHI_1996_I424112 91.2 1.7 +0.20 1.9
OPAL_2004_I669402 [91.2..197] 1.2 +0.10 1.3
Event-Shape Moments
Moments of S
OPAL_2004_I669402 [91.2..197] n/a - n/a
Thrust
ALEPH_2004_I636645 [91.2..206] 2.0* -0.10 1.9*
Thrust Major
ALEPH_2004_I636645 [91.2..206] 0.52* -0.010 0.51*
DELPHI_1996_I424112 91.2 6.9 +0.30 7.2
OPAL_2004_I669402 [91.2..197] 3.7 +0.20 3.9
Event-Shape Moments
Moments of T Major
OPAL_2004_I669402 [91.2..197] n/a - n/a
Thrust Minor
ALEPH_1996_I428072 91.2 9.2 +0.40 9.6
ALEPH_2004_I636645 [91.2..206] 1.5* +0.10 1.6*
DELPHI_1996_I424112 91.2 13 +1.0 14
OPAL_2004_I669402 [91.2..197] 9.2 +0.50 9.7
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] 0.51* +0.59 1.1*
Jet resolution
y23
ALEPH_1996_I428072 91.2 4.2 - n/a
ALEPH_2004_I636645 [91.2..206] 0.48* 0 0.48*
OPAL_2004_I669402 [91.2..197] 1.9 +0.10 2.0
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] 1.2* 0 1.2*
Jet resolution
y45
ALEPH_2004_I636645 [91.2..206] 1.5* +0.10 1.6*
Jet resolution
y56
ALEPH_2004_I636645 [91.2..206] 1.5* 0 1.5*
Charm and Bottom
fweak
DELPHI_2011_I890503 91.2 1.4 +3.6 5.0
OPAL_2003_I599181 91.2 4.7 +7.3 12
SLD_2002_I582951 91.2 0.45 +2.2 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] 0.21* -0.030 0.18*
DELPHI_1996_I424112 91.2 8.1 -0.70 7.4
OPAL_2004_I669402 [91.2..197] 4.6 +0.30 4.9
Event-Shape Moments
Moments of Btot
OPAL_2004_I669402 [91.2..197] n/a - n/a
B(Max)
ALEPH_2004_I636645 [91.2..206] 0.47* -0.070 0.40*
DELPHI_1996_I424112 91.2 6.2 +0.30 6.5
OPAL_2004_I669402 [91.2..197] 4.6 +0.50 5.1
Event-Shape Moments
Moments of Bmax
OPAL_2004_I669402 [91.2..197] n/a - n/a
B(Min)
DELPHI_1996_I424112 91.2 7.8 +0.50 8.3
OPAL_2004_I669402 [91.2..197] 6.1 +0.10 6.2
Event-Shape Moments
Moments of Bmin
OPAL_2004_I669402 [91.2..197] n/a - n/a
ΔB(Max-Min)
DELPHI_1996_I424112 91.2 1.5 -0.20 1.3
Identified Particles
(RqK--RqK+) / (RqK-+RqK+)
SLD_2004_I630327 91.2 11 -1.0 10
Identified Particles
(Rqπ--Rqπ+) / (Rqπ-+Rqπ+)
SLD_2004_I630327 91.2 12 -1.0 11
Identified Particles
(Rqp-Rq) / (Rqp+Rq)
SLD_2004_I630327 91.2 n/a - 17
EEC
DELPHI_1996_I424112 91.2 1.5 -0.30 1.2
EEC Asymmetry
DELPHI_1996_I424112 91.2 0.74 -0.34 0.40
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 10 +1.0 11
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 1.3 +0.100 1.4
HRS_1986_I18502 29 n/a - n/a
OPAL_1992_I321190 91.2 n/a - n/a
SLD_2004_I630327 91.2 1.5 +0.30 1.8
Charged Particles
<Nch,uds> - <Nch,b>
SLD_2004_I630327 91.2 2.1 +7.5 9.6
Charged Particles
<Nch,uds> - <Nch,c>
SLD_2004_I630327 91.2 9.6 +0.40 10
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 5.3 +0.50 5.8
Identified Particles
ρ multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Charged Particles
pTin (Sph)
ALEPH_1996_I428072 91.2 7.5 +0.50 8.0
DELPHI_1996_I424112 91.2 8.7 +0.30 9.0
Charged Particles
pTin (Thrust)
ALEPH_2004_I636645 [133..206] 2.0* +0.20 2.2*
DELPHI_1996_I424112 91.2 5.9 +0.100 6.0
Charged Particles
pTout (Sph)
ALEPH_1996_I428072 91.2 4.6 +1.1 5.7
DELPHI_1996_I424112 91.2 5.3 +1.2 6.5
Charged Particles
pTout (Thrust)
ALEPH_2004_I636645 206 n/a - n/a
DELPHI_1996_I424112 91.2 4.7 +1.6 6.3
Charged Particles
<pTout> vs x (Thrust)
DELPHI_1996_I424112 91.2 0.64 -0.33 0.31
Charged Particles
<pT> vs x (Thrust)
DELPHI_1996_I424112 91.2 1.3 +0.20 1.5
Identified Particles
N(q→K-)+N(q̄→K+)
SLD_2004_I630327 91.2 16 +3.0 19
Identified Particles
N(q→K+)+N(q̄→K-)
SLD_2004_I630327 91.2 21 -3.0 18
Jet rates
One-jet fraction
ALEPH_2004_I636645 [91.2..206] 48* +4.0 52*
Jet rates
Two-jet fraction
ALEPH_2004_I636645 [91.2..206] 3.5* -2.1 1.4*
DELPHI_1996_I424112 91.2 0.33 -0.020 0.31
Jet rates
Three-jet fraction
ALEPH_2004_I636645 [91.2..206] 9.2* -0.30 8.9*
DELPHI_1996_I424112 91.2 3.0 -0.50 2.5
Jet rates
Four-jet fraction
ALEPH_2004_I636645 [91.2..206] 12* +1.0 13*
DELPHI_1996_I424112 91.2 8.2 -0.90 7.3
Jet rates
Five-jet fraction
ALEPH_2004_I636645 [91.2..206] 17* +1.0 18*
Jet rates
>Six-jet fraction
ALEPH_2004_I636645 [91.2..206] 8.5* +0.40 8.9*
Identified Particles
N(q→π-)+N(q̄→π+)
SLD_2004_I630327 91.2 2.9 +0.30 3.2
Identified Particles
N(q→π+)+N(q̄→π-)
SLD_2004_I630327 91.2 2.4 -0.30 2.1
Identified Particles
N(q→p̄)+N(q̄→p)
SLD_2004_I630327 91.2 44 +16 60
Identified Particles
N(q→p)+N(q̄→p̄)
SLD_2004_I630327 91.2 12 +1.0 13
Thrust Oblateness
ALEPH_1996_I428072 91.2 3.0 -0.90 2.1
ALEPH_2004_I636645 [91.2..206] 1.0* -0.040 0.96*
DELPHI_1996_I424112 91.2 3.1 -0.40 2.7
OPAL_2004_I669402 [91.2..197] 0.89 +0.21 1.1
1-Thrust
ALEPH_1996_I428072 91.2 6.3 -0.20 6.1
DELPHI_1996_I424112 91.2 4.9 -0.10 4.8
OPAL_2004_I669402 [91.2..197] 6.7 +0.30 7.0
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 4.7 +1.0 5.7
ALEPH_2004_I636645 [133..206] 0.90* +0.060 0.96*
DELPHI_1996_I424112 91.2 5.4 +0.70 6.1
OPAL_1998_I472637 91.2 2.3 +0.40 2.7
SLD_2004_I630327 91.2 4.7 +1.3 6.0
Charm and Bottom
D* spectrum
ALEPH_1999_I507422 91.2 16 -2.0 14
Charged Particles
xE (energy fraction)
ALEPH_2004_I636645 [133..206] 0.96* +0.040 1.0*
Identified Particles
K spectrum
ALEPH_1996_I428072 91.2 14 +2.0 16
SLD_2004_I630327 91.2 13* +3.0 16*
Identified Particles
K*(892) spectrum
ALEPH_1996_I428072 91.2 10 +1.0 11
OPAL_1993_I342766 91.2 45 +3.0 48
Identified Particles
Λ0 spectrum
ALEPH_1996_I428072 91.2 2.4 0 2.4
Identified Particles
Σ(1385) spectrum
ALEPH_1996_I428072 91.2 13 0 13
DELPHI_1995_I394716 91.2 14 0 14
Identified Particles
Ξ spectrum
ALEPH_1996_I428072 91.2 2.8 -0.90 1.9
DELPHI_1995_I394716 91.2 0.66 +0.30 0.96
Identified Particles
Ξ(1530) spectrum
ALEPH_1996_I428072 91.2 16 +1.0 17
Identified Particles
η spectrum
ALEPH_1996_I428072 91.2 17 +3.0 20
L3_1992_I336180 91.2 1.0 0 1.0
Identified Particles
η' spectrum
ALEPH_1996_I428072 91.2 36 -1.0 35
Identified Particles
γ spectrum
ALEPH_1996_I428072 91.2 16 0 16
Charged Particles
Ln(xp)
ALEPH_1996_I428072 91.2 4.2 +0.90 5.1
ALEPH_2004_I636645 [133..206] 1.4* +0.10 1.5*
DELPHI_1996_I424112 91.2 3.8 +0.70 4.5
OPAL_1998_I472637 91.2 2.5 +0.30 2.8
Identified Particles
ω(782) spectrum
ALEPH_1996_I428072 91.2 3.6 -0.20 3.4
Identified Particles
p spectrum
ALEPH_1996_I428072 91.2 4.0 -0.40 3.6
SLD_2004_I630327 91.2 12* 0 12*
Identified Particles
φ spectrum
ALEPH_1996_I428072 91.2 30 0 30
Identified Particles
π spectrum
ALEPH_1996_I428072 91.2 0.92 +0.18 1.1
SLD_2004_I630327 91.2 3.6 -0.10 3.5
Identified Particles
ρ spectrum
ALEPH_1996_I428072 91.2 1.7 -0.20 1.5
Charged Particles
Rapidity wrt Sphericity axis
ALEPH_2004_I636645 [133..206] 0.99* +0.11 1.1*
DELPHI_1996_I424112 91.2 2.3 +0.20 2.5
Charged Particles
Rapidity wrt Thrust axis
ALEPH_1996_I428072 91.2 1.6 +0.100 1.7
ALEPH_2004_I636645 [133..206] 0.90* +0.20 1.1*
DELPHI_1996_I424112 91.2 2.3 +0.10 2.4

* 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.