Generator / tune

Details for Pythia 6.426 a 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 3.0 -0.40 2.6
ALEPH_2004_I636645 [91.2..206] 0.84* -0.040 0.80*
DELPHI_1996_I424112 91.2 2.4 -0.60 1.8
OPAL_2004_I669402 [91.2..197] 1.1 -0.13 0.97
C parameter
ALEPH_1996_I428072 91.2 0.57 +0.38 0.95
ALEPH_2004_I636645 [91.2..206] 0.62* +0.060 0.68*
DELPHI_1996_I424112 91.2 0.42 +0.24 0.66
OPAL_2004_I669402 [91.2..197] 0.70 +0.080 0.78
Event-Shape Moments
Moments of C
OPAL_2004_I669402 [91.2..197] n/a - n/a
D parameter
DELPHI_1996_I424112 91.2 0.96 +0.34 1.3
OPAL_2004_I669402 [91.2..197] 0.92 +0.070 0.99
M(Heavy Hemisph)
ALEPH_1996_I428072 91.2 0.22 -0.060 0.16
ALEPH_2004_I636645 [91.2..206] 0.33* +0.030 0.36*
DELPHI_1996_I424112 91.2 0.36 -0.070 0.29
OPAL_2004_I669402 [91.2..197] 1.3 -0.20 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 0.84 -0.12 0.72
OPAL_2004_I669402 [91.2..197] 1.3 -0.10 1.2
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] 0.83* +0.050 0.88*
DELPHI_1996_I424112 91.2 0.33 -0.040 0.29
Event-Shape Moments
Moments of O
OPAL_2004_I669402 [91.2..197] n/a - n/a
Planarity
ALEPH_2004_I636645 [133..206] 0.51* -0.13 0.38*
DELPHI_1996_I424112 91.2 0.54 -0.22 0.32
Sphericity
ALEPH_1996_I428072 91.2 0.74 -0.16 0.58
ALEPH_2004_I636645 [91.2..206] 0.37* -0.020 0.35*
DELPHI_1996_I424112 91.2 0.69 -0.28 0.41
OPAL_2004_I669402 [91.2..197] 0.79 -0.080 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] 0.64* -0.010 0.63*
Thrust Major
ALEPH_2004_I636645 [91.2..206] 0.35* -0.020 0.33*
DELPHI_1996_I424112 91.2 0.60 -0.32 0.28
OPAL_2004_I669402 [91.2..197] 0.72 -0.050 0.67
Event-Shape Moments
Moments of T Major
OPAL_2004_I669402 [91.2..197] n/a - n/a
Thrust Minor
ALEPH_1996_I428072 91.2 n/a - 1.8
ALEPH_2004_I636645 [91.2..206] 0.63* +0.010 0.64*
DELPHI_1996_I424112 91.2 1.4 +0.10 1.5
OPAL_2004_I669402 [91.2..197] 1.2 +0.10 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] 0.22* +0.40 0.62*
Jet resolution
y23
ALEPH_1996_I428072 91.2 0.65 - n/a
ALEPH_2004_I636645 [91.2..206] 0.43* -0.060 0.37*
OPAL_2004_I669402 [91.2..197] 0.81 -0.13 0.68
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] 0.60* -0.030 0.57*
Jet resolution
y45
ALEPH_2004_I636645 [91.2..206] 1.0* -0.090 0.91*
Jet resolution
y56
ALEPH_2004_I636645 [91.2..206] 1.1* -0.15 0.95*
Charm and Bottom
fweak
DELPHI_2011_I890503 91.2 5.8 +0.30 6.1
OPAL_2003_I599181 91.2 9.2 -1.2 8.0
SLD_2002_I582951 91.2 3.3 -0.50 2.8
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] 0.43* -0.22 0.21*
DELPHI_1996_I424112 91.2 0.45 -0.020 0.43
OPAL_2004_I669402 [91.2..197] 0.72 -0.040 0.68
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* +0.040 0.52*
DELPHI_1996_I424112 91.2 0.47 -0.16 0.31
OPAL_2004_I669402 [91.2..197] 0.58 -0.050 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 0.69 +0.31 1.0
OPAL_2004_I669402 [91.2..197] 0.80 -0.050 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 0.67 -0.26 0.41
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 11 +1.0 12
Identified Particles
(Rqp-Rq) / (Rqp+Rq)
SLD_2004_I630327 91.2 21 - n/a
EEC
DELPHI_1996_I424112 91.2 0.15 -0.0100 0.14
EEC Asymmetry
DELPHI_1996_I424112 91.2 1.9 -0.60 1.3
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 0.14 -0.020 0.12
HRS_1986_I18502 29 n/a - n/a
OPAL_1992_I321190 91.2 n/a - n/a
SLD_2004_I630327 91.2 0.24 -0.030 0.21
Charged Particles
<Nch,uds> - <Nch,b>
SLD_2004_I630327 91.2 19 -1.0 18
Charged Particles
<Nch,uds> - <Nch,c>
SLD_2004_I630327 91.2 25 +1.0 26
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 0 14
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 2.6 -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 1.3 +0.100 1.4
DELPHI_1996_I424112 91.2 1.9 +0.20 2.1
Charged Particles
pTin (Thrust)
ALEPH_2004_I636645 [133..206] 1.1* -0.10 1.0*
DELPHI_1996_I424112 91.2 1.8 -0.30 1.5
Charged Particles
pTout (Sph)
ALEPH_1996_I428072 91.2 11 +1.0 12
DELPHI_1996_I424112 91.2 13 +1.0 14
Charged Particles
pTout (Thrust)
ALEPH_2004_I636645 206 n/a - n/a
DELPHI_1996_I424112 91.2 13 +1.0 14
Charged Particles
<pTout> vs x (Thrust)
DELPHI_1996_I424112 91.2 0.62 +0.34 0.96
Charged Particles
<pT> vs x (Thrust)
DELPHI_1996_I424112 91.2 0.98 +0.020 1.0
Identified Particles
N(q→K-)+N(q̄→K+)
SLD_2004_I630327 91.2 12 0 12
Identified Particles
N(q→K+)+N(q̄→K-)
SLD_2004_I630327 91.2 13 +2.0 15
Jet rates
One-jet fraction
ALEPH_2004_I636645 [91.2..206] 50* - n/a
Jet rates
Two-jet fraction
ALEPH_2004_I636645 [91.2..206] 2.6* -1.7 0.86*
DELPHI_1996_I424112 91.2 0.58 -0.25 0.33
Jet rates
Three-jet fraction
ALEPH_2004_I636645 [91.2..206] 5.2* -0.20 5.0*
DELPHI_1996_I424112 91.2 1.8 +0.80 2.6
Jet rates
Four-jet fraction
ALEPH_2004_I636645 [91.2..206] 1.3* +0.100 1.4*
DELPHI_1996_I424112 91.2 2.2 +1.2 3.4
Jet rates
Five-jet fraction
ALEPH_2004_I636645 [91.2..206] 5.2* -0.50 4.7*
Jet rates
>Six-jet fraction
ALEPH_2004_I636645 [91.2..206] 1.9* -0.70 1.2*
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 2.0 +0.30 2.3
Identified Particles
N(q→p̄)+N(q̄→p)
SLD_2004_I630327 91.2 44 -10 34
Identified Particles
N(q→p)+N(q̄→p̄)
SLD_2004_I630327 91.2 18 -1.0 17
Thrust Oblateness
ALEPH_1996_I428072 91.2 0.76 -0.24 0.52
ALEPH_2004_I636645 [91.2..206] 1.3* -0.97 0.33*
DELPHI_1996_I424112 91.2 0.71 -0.24 0.47
OPAL_2004_I669402 [91.2..197] 0.78 -0.12 0.66
1-Thrust
ALEPH_1996_I428072 91.2 0.38 -0.14 0.24
DELPHI_1996_I424112 91.2 0.30 - n/a
OPAL_2004_I669402 [91.2..197] 0.75 -0.010 0.74
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 1.8 -0.50 1.3
ALEPH_2004_I636645 [133..206] 0.76* -0.16 0.60*
DELPHI_1996_I424112 91.2 2.4 -0.60 1.8
OPAL_1998_I472637 91.2 1.8 -0.10 1.7
SLD_2004_I630327 91.2 3.1 +0.10 3.2
Charm and Bottom
D* spectrum
ALEPH_1999_I507422 91.2 17 -1.0 16
Charged Particles
xE (energy fraction)
ALEPH_2004_I636645 [133..206] 0.77* -0.16 0.61*
Identified Particles
K spectrum
ALEPH_1996_I428072 91.2 5.0 -0.20 4.8
SLD_2004_I630327 91.2 9.7 +0.30 10*
Identified Particles
K*(892) spectrum
ALEPH_1996_I428072 91.2 7.9 -0.10 7.8
OPAL_1993_I342766 91.2 45 -2.0 43
Identified Particles
Λ0 spectrum
ALEPH_1996_I428072 91.2 5.3 +0.50 5.8
Identified Particles
Σ(1385) spectrum
ALEPH_1996_I428072 91.2 18 -2.0 16
DELPHI_1995_I394716 91.2 16 0 16
Identified Particles
Ξ spectrum
ALEPH_1996_I428072 91.2 3.1 -0.80 2.3
DELPHI_1995_I394716 91.2 0.94 -0.030 0.91
Identified Particles
Ξ(1530) spectrum
ALEPH_1996_I428072 91.2 19 -8.0 11
Identified Particles
η spectrum
ALEPH_1996_I428072 91.2 11 +3.0 14
L3_1992_I336180 91.2 0.93 +0.030 0.96
Identified Particles
η' spectrum
ALEPH_1996_I428072 91.2 37 0 37
Identified Particles
γ spectrum
ALEPH_1996_I428072 91.2 12 0 12
Charged Particles
Ln(xp)
ALEPH_1996_I428072 91.2 1.4 -0.30 1.1
ALEPH_2004_I636645 [133..206] 0.76* -0.090 0.67*
DELPHI_1996_I424112 91.2 1.5 -0.40 1.1
OPAL_1998_I472637 91.2 1.7 -0.100 1.6
Identified Particles
ω(782) spectrum
ALEPH_1996_I428072 91.2 5.5 -0.60 4.9
Identified Particles
p spectrum
ALEPH_1996_I428072 91.2 2.7 +0.40 3.1
SLD_2004_I630327 91.2 14* -1.0 13*
Identified Particles
φ spectrum
ALEPH_1996_I428072 91.2 25 0 25
Identified Particles
π spectrum
ALEPH_1996_I428072 91.2 0.51 -0.060 0.45
SLD_2004_I630327 91.2 2.0 +0.20 2.2
Identified Particles
ρ spectrum
ALEPH_1996_I428072 91.2 0.82 -0.060 0.76
Charged Particles
Rapidity wrt Sphericity axis
ALEPH_2004_I636645 [133..206] 0.68* -0.010 0.67*
DELPHI_1996_I424112 91.2 0.87 +0.060 0.93
Charged Particles
Rapidity wrt Thrust axis
ALEPH_1996_I428072 91.2 0.22 +0.020 0.24
ALEPH_2004_I636645 [133..206] 0.48* 0 0.48*
DELPHI_1996_I424112 91.2 0.40 -0.070 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.