Monte Carlo updates on color coherence at 7 TeV

Hyunyong Kim; Jason Sang Hun Lee; Inkyu Park

doi:10.3938/jkps.70.465

Monte Carlo updates on color coherence at 7 TeV

Hyunyong Kim, Jason Sang Hun Lee, Inkyu Park

Department of Physics

University of Seoul

Research output: Contribution to journal › Article › peer-review

Abstract

An important feature of quantum chromodynamics (QCD) is the effects of color coherence. Color coherence manifests as a color connection between the outgoing partons produced in hard interactions, leading to a suppression of particle radiation between the two leading jets of a three-jet event. The angular distribution of the third jet around the second jet was measured in e⁻e⁺ and pp collisions. The latest result for the color coherence effect is from the Compact Muon Solenoid (CMS) experiment with a center-of-mass energy of 7 TeV. At the time, none of the Monte Carlo (MC) models was shown to be able to describe the data successfully. This study shows the results of the latest MC models describing the color coherence effect and compares them to the CMS 7 TeV data. The latest MC models are able to describe the CMS data much more satisfactorily.

Original language	English
Pages (from-to)	465-468
Number of pages	4
Journal	Journal of the Korean Physical Society
Volume	70
Issue number	5
DOIs	https://doi.org/10.3938/jkps.70.465
State	Published - 1 Mar 2017

Keywords

Color coherence
Fragmentation
Jet
QCD

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10.3938/jkps.70.465

Cite this

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title = "Monte Carlo updates on color coherence at 7 TeV",

abstract = "An important feature of quantum chromodynamics (QCD) is the effects of color coherence. Color coherence manifests as a color connection between the outgoing partons produced in hard interactions, leading to a suppression of particle radiation between the two leading jets of a three-jet event. The angular distribution of the third jet around the second jet was measured in e−e+ and pp collisions. The latest result for the color coherence effect is from the Compact Muon Solenoid (CMS) experiment with a center-of-mass energy of 7 TeV. At the time, none of the Monte Carlo (MC) models was shown to be able to describe the data successfully. This study shows the results of the latest MC models describing the color coherence effect and compares them to the CMS 7 TeV data. The latest MC models are able to describe the CMS data much more satisfactorily.",

keywords = "Color coherence, Fragmentation, Jet, QCD",

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AU - Kim, Hyunyong

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AU - Park, Inkyu

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AB - An important feature of quantum chromodynamics (QCD) is the effects of color coherence. Color coherence manifests as a color connection between the outgoing partons produced in hard interactions, leading to a suppression of particle radiation between the two leading jets of a three-jet event. The angular distribution of the third jet around the second jet was measured in e−e+ and pp collisions. The latest result for the color coherence effect is from the Compact Muon Solenoid (CMS) experiment with a center-of-mass energy of 7 TeV. At the time, none of the Monte Carlo (MC) models was shown to be able to describe the data successfully. This study shows the results of the latest MC models describing the color coherence effect and compares them to the CMS 7 TeV data. The latest MC models are able to describe the CMS data much more satisfactorily.

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Monte Carlo updates on color coherence at 7 TeV

Abstract

Keywords

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