Generator / tune

Details for Pythia 6.426 z2 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 7.4 +0.100 7.5
ALEPH_2004_I636645 [91.2..206] 2.0* 0 2.0*
DELPHI_1996_I424112 91.2 6.0 +0.20 6.2
OPAL_2004_I669402 [91.2..197] 4.7 +0.20 4.9
C parameter
ALEPH_1996_I428072 91.2 3.5 -0.20 3.3
ALEPH_2004_I636645 [91.2..206] 0.75* +1.6 2.3*
DELPHI_1996_I424112 91.2 5.5 -0.40 5.1
OPAL_2004_I669402 [91.2..197] 6.4 +0.30 6.7
Event-Shape Moments
Moments of C
OPAL_2004_I669402 [91.2..197] n/a - n/a
D parameter
DELPHI_1996_I424112 91.2 7.1 -0.30 6.8
OPAL_2004_I669402 [91.2..197] 3.5 0 3.5
M(Heavy Hemisph)
ALEPH_1996_I428072 91.2 2.1 -0.10 2.0
ALEPH_2004_I636645 [91.2..206] 0.42* -0.020 0.40*
DELPHI_1996_I424112 91.2 3.5 -0.10 3.4
OPAL_2004_I669402 [91.2..197] 5.6 +0.10 5.7
Event-Shape Moments
Moments of MH
OPAL_2004_I669402 [91.2..197] n/a - n/a
M(Light Hemisph)
DELPHI_1996_I424112 91.2 8.1 -0.100 8.0
OPAL_2004_I669402 [91.2..197] 7.2 +0.100 7.3
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] 0.77* +0.020 0.79*
DELPHI_1996_I424112 91.2 0.69 +0.41 1.1
Event-Shape Moments
Moments of O
OPAL_2004_I669402 [91.2..197] n/a - n/a
Planarity
ALEPH_2004_I636645 [133..206] 0.47* +0.050 0.52*
DELPHI_1996_I424112 91.2 0.81 +0.18 0.99
Sphericity
ALEPH_1996_I428072 91.2 3.1 -0.10 3.0
ALEPH_2004_I636645 [91.2..206] 0.41* +0.28 0.69*
DELPHI_1996_I424112 91.2 2.0 -0.20 1.8
OPAL_2004_I669402 [91.2..197] 1.3 0 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] 1.9* 0 1.9*
Thrust Major
ALEPH_2004_I636645 [91.2..206] 0.49* +0.020 0.51*
DELPHI_1996_I424112 91.2 6.6 -0.100 6.5
OPAL_2004_I669402 [91.2..197] 3.7 0 3.7
Event-Shape Moments
Moments of T Major
OPAL_2004_I669402 [91.2..197] n/a - n/a
Thrust Minor
ALEPH_1996_I428072 91.2 9.7 -0.20 9.5
ALEPH_2004_I636645 [91.2..206] 1.6* 0 1.6*
DELPHI_1996_I424112 91.2 14 -1.0 13
OPAL_2004_I669402 [91.2..197] 9.1 +0.30 9.4
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] 1.1* -0.10 1.0*
Jet resolution
y23
ALEPH_1996_I428072 91.2 4.2 -0.40 3.8
ALEPH_2004_I636645 [91.2..206] 0.38* +0.100 0.48*
OPAL_2004_I669402 [91.2..197] 1.8 +0.20 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 1.5*
Jet resolution
y56
ALEPH_2004_I636645 [91.2..206] 1.5* -0.10 1.4*
Charm and Bottom
fweak
DELPHI_2011_I890503 91.2 5.2 +0.50 5.7
OPAL_2003_I599181 91.2 12 0 12
SLD_2002_I582951 91.2 2.5 +0.20 2.7
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] 0.17* -0.020 0.15*
DELPHI_1996_I424112 91.2 7.3 +0.10 7.4
OPAL_2004_I669402 [91.2..197] 4.8 -0.100 4.7
Event-Shape Moments
Moments of Btot
OPAL_2004_I669402 [91.2..197] n/a - n/a
B(Max)
ALEPH_2004_I636645 [91.2..206] 0.46* +0.0100 0.47*
DELPHI_1996_I424112 91.2 5.8 -0.50 5.3
OPAL_2004_I669402 [91.2..197] 4.9 -0.20 4.7
Event-Shape Moments
Moments of Bmax
OPAL_2004_I669402 [91.2..197] n/a - n/a
B(Min)
DELPHI_1996_I424112 91.2 8.2 +1.6 9.8
OPAL_2004_I669402 [91.2..197] 6.5 0 6.5
Event-Shape Moments
Moments of Bmin
OPAL_2004_I669402 [91.2..197] n/a - n/a
ΔB(Max-Min)
DELPHI_1996_I424112 91.2 0.57 +0.35 0.92
Identified Particles
(RqK--RqK+) / (RqK-+RqK+)
SLD_2004_I630327 91.2 9.5 +0.50 10
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 16 0 16
EEC
DELPHI_1996_I424112 91.2 1.3 0 1.3
EEC Asymmetry
DELPHI_1996_I424112 91.2 0.80 +0.80 1.6
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 11 -1.0 10
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 1.4 0 1.4
HRS_1986_I18502 29 n/a - n/a
OPAL_1992_I321190 91.2 n/a - n/a
SLD_2004_I630327 91.2 1.8 0 1.8
Charged Particles
<Nch,uds> - <Nch,b>
SLD_2004_I630327 91.2 11 -2.3 8.7
Charged Particles
<Nch,uds> - <Nch,c>
SLD_2004_I630327 91.2 19 +4.0 23
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 5.8 0 5.8
Identified Particles
ρ multiplicity
DELPHI_1996_I424112 91.2 n/a - n/a
Charged Particles
pTin (Sph)
ALEPH_1996_I428072 91.2 8.0 -0.100 7.9
DELPHI_1996_I424112 91.2 9.0 -0.30 8.7
Charged Particles
pTin (Thrust)
ALEPH_2004_I636645 [133..206] 2.1* 0 2.1*
DELPHI_1996_I424112 91.2 6.9 -0.20 6.7
Charged Particles
pTout (Sph)
ALEPH_1996_I428072 91.2 4.4 +0.60 5.0
DELPHI_1996_I424112 91.2 4.9 +0.90 5.8
Charged Particles
pTout (Thrust)
ALEPH_2004_I636645 206 n/a - n/a
DELPHI_1996_I424112 91.2 4.4 +0.70 5.1
Charged Particles
<pTout> vs x (Thrust)
DELPHI_1996_I424112 91.2 0.28 +0.100 0.38
Charged Particles
<pT> vs x (Thrust)
DELPHI_1996_I424112 91.2 1.7 -0.20 1.5
Identified Particles
N(q→K-)+N(q̄→K+)
SLD_2004_I630327 91.2 17 +1.0 18
Identified Particles
N(q→K+)+N(q̄→K-)
SLD_2004_I630327 91.2 18 +1.0 19
Jet rates
One-jet fraction
ALEPH_2004_I636645 [91.2..206] 51* -1.0 50*
Jet rates
Two-jet fraction
ALEPH_2004_I636645 [91.2..206] 3.5* -2.2 1.3*
DELPHI_1996_I424112 91.2 0.43 -0.050 0.38
Jet rates
Three-jet fraction
ALEPH_2004_I636645 [91.2..206] 8.8* -0.10 8.7*
DELPHI_1996_I424112 91.2 2.8 0 2.8
Jet rates
Four-jet fraction
ALEPH_2004_I636645 [91.2..206] 13* 0 13*
DELPHI_1996_I424112 91.2 8.0 +0.100 8.1
Jet rates
Five-jet fraction
ALEPH_2004_I636645 [91.2..206] 18* 0 18*
Jet rates
>Six-jet fraction
ALEPH_2004_I636645 [91.2..206] 8.9* +0.100 9.0*
Identified Particles
N(q→π-)+N(q̄→π+)
SLD_2004_I630327 91.2 3.0 +0.20 3.2
Identified Particles
N(q→π+)+N(q̄→π-)
SLD_2004_I630327 91.2 2.3 0 2.3
Identified Particles
N(q→p̄)+N(q̄→p)
SLD_2004_I630327 91.2 29 +17 46
Identified Particles
N(q→p)+N(q̄→p̄)
SLD_2004_I630327 91.2 12 0 12
Thrust Oblateness
ALEPH_1996_I428072 91.2 2.0 +0.70 2.7
ALEPH_2004_I636645 [91.2..206] 0.93* +0.17 1.1*
DELPHI_1996_I424112 91.2 2.7 +1.0 3.7
OPAL_2004_I669402 [91.2..197] 1.1 0 1.1
1-Thrust
ALEPH_1996_I428072 91.2 6.4 -0.50 5.9
DELPHI_1996_I424112 91.2 4.7 -0.40 4.3
OPAL_2004_I669402 [91.2..197] 6.2 +0.60 6.8
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 5.8 +0.10 5.9
ALEPH_2004_I636645 [133..206] 0.98* -0.020 0.96*
DELPHI_1996_I424112 91.2 6.3 +0.30 6.6
OPAL_1998_I472637 91.2 2.0* 0 2.0*
SLD_2004_I630327 91.2 6.5 -0.30 6.2
Charm and Bottom
D* spectrum
ALEPH_1999_I507422 91.2 14 0 14
Charged Particles
xE (energy fraction)
ALEPH_2004_I636645 [133..206] 1.0* 0 1.0*
Identified Particles
K spectrum
ALEPH_1996_I428072 91.2 14 +1.0 15
SLD_2004_I630327 91.2 14* +2.0 16*
Identified Particles
K*(892) spectrum
ALEPH_1996_I428072 91.2 10 0 10
OPAL_1993_I342766 91.2 47 0 47
Identified Particles
Λ0 spectrum
ALEPH_1996_I428072 91.2 1.8 +0.30 2.1
Identified Particles
Σ(1385) spectrum
ALEPH_1996_I428072 91.2 14 -4.1 9.9
DELPHI_1995_I394716 91.2 14 -1.0 13
Identified Particles
Ξ spectrum
ALEPH_1996_I428072 91.2 2.1 -0.90 1.2
DELPHI_1995_I394716 91.2 1.1 -0.15 0.95
Identified Particles
Ξ(1530) spectrum
ALEPH_1996_I428072 91.2 23 -11 12
Identified Particles
η spectrum
ALEPH_1996_I428072 91.2 15 +2.0 17
L3_1992_I336180 91.2 1.1 0 1.1
Identified Particles
η' spectrum
ALEPH_1996_I428072 91.2 35 -1.0 34
Identified Particles
γ spectrum
ALEPH_1996_I428072 91.2 16 +2.0 18
Charged Particles
Ln(xp)
ALEPH_1996_I428072 91.2 4.9 +0.30 5.2
ALEPH_2004_I636645 [133..206] 1.5* 0 1.5*
DELPHI_1996_I424112 91.2 4.4 +0.100 4.5
OPAL_1998_I472637 91.2 3.5* -0.90 2.6*
Identified Particles
ω(782) spectrum
ALEPH_1996_I428072 91.2 3.4 0 3.4
Identified Particles
p spectrum
ALEPH_1996_I428072 91.2 3.6 -0.10 3.5
SLD_2004_I630327 91.2 13* -2.0 11*
Identified Particles
φ spectrum
ALEPH_1996_I428072 91.2 30 -1.0 29
Identified Particles
π spectrum
ALEPH_1996_I428072 91.2 0.97 -0.010 0.96
SLD_2004_I630327 91.2 4.0 -0.20 3.8
Identified Particles
ρ spectrum
ALEPH_1996_I428072 91.2 1.7 -0.100 1.6
Charged Particles
Rapidity wrt Sphericity axis
ALEPH_2004_I636645 [133..206] 1.1* 0 1.1*
DELPHI_1996_I424112 91.2 2.4 -0.10 2.3
Charged Particles
Rapidity wrt Thrust axis
ALEPH_1996_I428072 91.2 1.8 -0.20 1.6
ALEPH_2004_I636645 [133..206] 1.0* 0 1.00*
DELPHI_1996_I424112 91.2 2.3 -0.100 2.2

* 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.