jhplot.stat

Class BunchingParameters

java.lang.Object

jhplot.stat.BunchingParameters

public class BunchingParameters
extends Object

Calculations of bunching parameters. They haracterize local multiplicity fluctuations inside a phase space. Calculations are done up to BP(6) order For a Poisson distribution it should be 1 for all divisions Here are relevant papers:

1) LOCAL MULTIPLICITY FLUCTUATIONS IN HADRONIC Z DECAY. L3 Collaboration (M. Acciarri et al.). CERN-PPE-97-165, Dec 1997. 18pp. Phys.Lett.B429:375-386,1998

Other papers:
1) Bunching Parameter and Intermittency in High-Energy Collisions by S.V.Chekanov and V.I.Kuvshinov Acta Phys. Pol. B25 (1994) p.1189-1197

2) Multifractal Multiplicity Distribution in Bunching-Parameter Analysis by S.V.Chekanov and V.I.Kuvshinov J. Phys G22 (1996), p.601-610

3) Generalized Bunching Parameters and Multiplicity Fluctuations in Restricted Phase-Space Bins by S.V.Chekanov, W.Kittel and V.I.Kuvshinov Z. Phys. C74 (1997) p.517-529, hep-ph/9606335

4) Scale-Invariant Dynamical Fluctuations in Jet Physics by S.V.Chekanov Eur. Phys. J. C6 (1999), 331-342, hep-ph/9804316

5) Suppression of multi-gluon fluctuations in jets at a Linear Collider by S. V. Chekanov Phys.Lett. B509 (2001) 74-80, hep-ph/0101233

Constructor Summary

Constructors

Constructor and Description
BunchingParameters(int NmaxOrder, int Bins, int step, double Min, double Max) Initialize Bunching parameter.

Method Summary

Modifier and Type	Method and Description
void	doc() Show online documentation.
boolean	eval() Evaluate bunching parameters at the end of the run
P1D	getBP(int order) Return results: BP as a function of number of bins.
void	run(double[] v) Collect information about sampling.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BunchingParameters

public BunchingParameters(int NmaxOrder,
                          int Bins,
                          int step,
                          double Min,
                          double Max)

Initialize Bunching parameter.

Parameters:

NmaxOrder - Max order of the bunching parameter (starting from 2)!

Bins - Defines Max number of bins used to divide the phase space (>1). The actual number of divisions is step*Bins. Therefore, 10 bins with step=4 means 400 divisions between Min and Max

step - used to increase step for divisions

Min - Min value in X

Max - Max value in X

Method Detail

run

public void run(double[] v)

Collect information about sampling. Put this method in a loop and pass vector with particle characteristics.

Parameters:

v - - vector characterizing particles (like momentum, speed etc)

eval

public boolean eval()

Evaluate bunching parameters at the end of the run

Returns:

true if success

getBP

public P1D getBP(int order)

Return results: BP as a function of number of bins. The order should be >1 but smaller than 8

Parameters:

order - order of bunching parameter

Returns:

bunching parameters

doc

public void doc()

Show online documentation.