A study of the dynamical-fluctuation property inside jets in e+e? collisions

The dynamical fluctuations in instanton induced events in e + p deep-inelastic scattering are studied using QCDINS 2.0 Monte Carlo generator. The hadron system produced from the fusion of quark-gluon in the presence of instanton, referred to as instanton final state (IFS), is identified by a pz-sorting together with a θcut method. The dynamical fluctuations inside the current jet and IFS are compared by means of the method of normalized factorial moments. The current jets are found to possess the typical characteristics of a "circular jet" with axial symmetry, while the dynamical fluctuations inside the IFS represent a three-dimensional isotropy.

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A Monte Carlo Study on the Dynamical Fluctuations Inside Quark–gluon Fusion Products in QCD-Instanton Induced Processes in Deep-Inelastic Scattering

Zhang

Levchenko

Wei

et al. 2007

Int. J. Mod. Phys. A

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STUDY ON THE GEOMETRICAL CHARACTERISTICS OF JETS WITH THE HBT CORRELATION METHOD IN e⁺e^- COLLISIONS AT $\sqrt{s} = 91.2\, {\rm GeV}$

Wei

Chen

Tian

et al. 2008

Int. J. Mod. Phys. E

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The geometrical characters of quark and gluon jets are carefully studied with the HBT correlation method using Monte Carlo generator produced e + e - collision events at [Formula: see text]. It turns out that the size of the jets can be measured by the HBT correlation method with the indistinguishability of identical final state pions. The size of quark jets and gluon jets are independent of the flavor of initial quarks that produced these jets but they are dependent on their energy. The average radius of quark and gluon jets in three-jet events of e + e - collisions at [Formula: see text] are obtained at the end of parton evolvement.

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Comparison of the Geometrical Characters Inside Quark- And Gluon-Jet Produced by Different Flavor Quarks

Chen

Wei

2011

Int. J. Mod. Phys. E

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The characters of the angular distributions of quark jets and gluon jets with different flavors are carefully studied after introducing the cone angle of jets. The quark jets and gluon jets are identified from the 3-jet events which are produced by Monte Carlo simulation Jetset7.4 in e + e − collisions at √ s=91.2GeV. It turns out that the ranges of angular distributions of gluon jets are obviously wider than that of quark jets at the same energies. The average cone angles of gluon jets are much larger than that of quark jets. As the multiplicity or the transverse momentum increases, the coneangle distribution without momentum weight of both the quark jet and gluon jet all increases, i.e the positive linear correlation are present, but the cone-angle distribution with momentum weight decreases at first, then increases when n > 4 or p t > 2GeV. The characters of cone angular distributions of gluon jets produced by quarks with different flavors are the same, while there are obvious differences for that of the quark jets with different flavors.

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A study of the dynamical-fluctuation property inside jets in e+e? collisions

Cited by 3 publications

References 19 publications

A Monte Carlo Study on the Dynamical Fluctuations Inside Quark–gluon Fusion Products in QCD-Instanton Induced Processes in Deep-Inelastic Scattering

A Monte Carlo Study on the Dynamical Fluctuations Inside Quark–gluon Fusion Products in QCD-Instanton Induced Processes in Deep-Inelastic Scattering

STUDY ON THE GEOMETRICAL CHARACTERISTICS OF JETS WITH THE HBT CORRELATION METHOD IN e⁺e^- COLLISIONS AT $\sqrt{s} = 91.2\, {\rm GeV}$

Comparison of the Geometrical Characters Inside Quark- And Gluon-Jet Produced by Different Flavor Quarks

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A study of the dynamical-fluctuation property inside jets in e+e? collisions

Cited by 3 publications

References 19 publications

A Monte Carlo Study on the Dynamical Fluctuations Inside Quark–gluon Fusion Products in QCD-Instanton Induced Processes in Deep-Inelastic Scattering

A Monte Carlo Study on the Dynamical Fluctuations Inside Quark–gluon Fusion Products in QCD-Instanton Induced Processes in Deep-Inelastic Scattering

STUDY ON THE GEOMETRICAL CHARACTERISTICS OF JETS WITH THE HBT CORRELATION METHOD IN e+e- COLLISIONS AT $\sqrt{s} = 91.2\, {\rm GeV}$

Comparison of the Geometrical Characters Inside Quark- And Gluon-Jet Produced by Different Flavor Quarks

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Product

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STUDY ON THE GEOMETRICAL CHARACTERISTICS OF JETS WITH THE HBT CORRELATION METHOD IN e⁺e^- COLLISIONS AT $\sqrt{s} = 91.2\, {\rm GeV}$