A Monte Carlo study on the production scale and internal structure of jets in high energy collisions

Chen, Gang; Yu, Mao-Hong; Lianshou, Liu

doi:10.1007/s11434-008-0524-x

Cited by 2 publications

(2 citation statements)

References 34 publications

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“…For the color charge of gluon is larger than that of quark, gluon jet has the character that it is fatter than quark jet. The experimental result [4] − [11] obtained in LEP e + e − storage ring (CERN) is quantificationally in agreement with the theoretically predictions: gluon jet has larger average charged particle multiplicity, softer fragmentation function and wider angular distributions than quark jet [12].Recently, the general characteristics [13] − [16] of and the dynamical fluctuations inside [17] , [18] quark and gluon jets from three-jet events have been analyzed using Monte Carlo simulation in e + e − collisions.…”

Section: Introductionsupporting

confidence: 55%

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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Section: Introductionsupporting

confidence: 55%

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 fraction of 2-jet events or 3-jet events obtained with the jet-algorithm depends on the parameter y cut [30]. From the point of experiments, k t can be taken as the transition scale between the hard and soft processes [31]. Its value depends on the definition of "jet".…”

Section: Jet Identification Methods and The Hbt Correlation Functionmentioning

confidence: 99%

Study on the Energy Dependence of the Source Size of Jets by the HBT Correlation Method in $e^+e^-$ Collisions

Chen¹,

Mei-Juan²,

Yi-Long³

et al. 2014

Acta Phys. Pol. B

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The energy dependence of the source size of jets are studied in detail by the HBT correlation method using Monte Carlo Simulation generator Jetset7.4 to produce 40,000,000 events of e + e − collisions at √ s = 30, 50, 70, 91.2, 110, 130, 150 and 170 GeV, respectively. The source size of jets are measured using the HBT correlation method with the indistinguishability of identical final state pions. The average source radii of quark-jets and gluon-jets in e + e − collisions are obtained at the end of parton evolvement. It is found that the average source radii of quark-jets are obviously larger than those of gluon-jets and the average source radii measured with π 0 meson are smaller than those with π + or π − meson.

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A Monte Carlo study on the production scale and internal structure of jets in high energy collisions

Cited by 2 publications

References 34 publications

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

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

Study on the Energy Dependence of the Source Size of Jets by the HBT Correlation Method in $e^+e^-$ Collisions

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