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Subsections

BKS observable with x=1.5


Definition of the observable

Following [14] we study here $ \tau_{3/2}$, with $ \tau_x$ defined in eq. (30).

Born event used for the analysis

The hard scale (Q) is taken to be the center-of-mass energy.

Elementary tests on the observable

Test result
check number of jets T
all legs positive T
globalness T

Single emission properties

leg $ \ell$ $ a_{\ell}$ $ b_{\ell}$ $ g_{\ell}(\phi)$ $ d_{\ell}$ $ \langle \ln g_{\ell}(\phi) \rangle$
1 $ 0.500$ $ 0.000$ 1 $ 1.000 $ 0
2 $ 0.500$ $ 0.000$ 1 $ 1.000 $ 0

Multiple emission tests

Test result
continuously global T
exponentiation (condition 1) T
exponentiation (condition 2a) T
exponentiation (condition 2b) T
exponentiation T
additivity F
eliminate subleading effects T
opt. probe region exists F

Information regarding the presence of possible zeros

leg 1 2
1 good zero no zero
2 no zero good zero

Classification of legs into divergent sequences with shared properties

Sequence number 1 has 1 legs
Legs in the sequence: 1
Orientation of the legs: 1
Type of zero: zt_sumvecVf
Position of the divergence: $ \sum_{i \in seq.} R_i = 4.000$
Sequence number 2 has 1 legs
Legs in the sequence: 2
Orientation of the legs: 1
Type of zero: zt_sumvecVf
Position of the divergence: $ \sum_{i \in seq.} R_i = 4.000$

Multiple emission effects

Second order coefficient $ {\cal F}_2$ of the function $ {\cal F}$

Number of events used: 10000

Result for each colour configuration
  $ {\cal F}_2 =-0.38613\pm 0.01679$

For a precise definition of the configurations see [5].

The multiple emission function $ {\cal F}$

Number of events used: 12000
\begin{figure}\centering \epsfig{file=../OutputAnalysis/bks_x15_ee.ff.eps, width=.7\textwidth, angle=0} \end{figure}

Collection of automatically generated results

bks_x15_ee.tar.gz collects all files produced automatically by Caesar.
next up previous
Next: Fractional energy correlation with Up: Observables in e+e- Previous: BKS observable with x=0.5
Giulia Zanderighi 2004-11-19