Measurement of observables sensitive to coherence effects in hadronic Z decays with the OPAL detector at LEP

Nadine Fischer; Stefan Gieseke; Stefan Kluth; Simon Platzer; Peter Zeiler Skands

doi:10.1140/epjc/s10052-015-3766-1

Measurement of observables sensitive to coherence effects in hadronic Z decays with the OPAL detector at LEP

Nadine Fischer, Stefan Gieseke, Stefan Kluth, Simon Platzer, Peter Zeiler Skands

School of Physics and Astronomy

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

5 Citations (Scopus)

Abstract

A study of QCD coherence is presented based on a sample of about 397,000 e+e−e+e− hadronic annihilation events collected at s√=91s=91 GeV with the OPAL detector at LEP. The study is based on four recently proposed observables that are sensitive to coherence effects in the perturbative regime. The measurement of these observables is presented, along with a comparison with the predictions of different parton shower models. The models include both conventional parton shower models and dipole antenna models. Different ordering variables are used to investigate their influence on the predictions.

Original language	English
Article number	571
Pages (from-to)	1-17
Number of pages	17
Journal	European Physical Journal C
Volume	75
Issue number	12
DOIs	https://doi.org/10.1140/epjc/s10052-015-3766-1
Publication status	Published - 2015

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10.1140/epjc/s10052-015-3766-1

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abstract = "A study of QCD coherence is presented based on a sample of about 397,000 e+e−e+e− hadronic annihilation events collected at s√=91s=91 GeV with the OPAL detector at LEP. The study is based on four recently proposed observables that are sensitive to coherence effects in the perturbative regime. The measurement of these observables is presented, along with a comparison with the predictions of different parton shower models. The models include both conventional parton shower models and dipole antenna models. Different ordering variables are used to investigate their influence on the predictions.",

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AU - Gieseke, Stefan

AU - Kluth, Stefan

AU - Platzer, Simon

AU - Skands, Peter Zeiler

PY - 2015

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AB - A study of QCD coherence is presented based on a sample of about 397,000 e+e−e+e− hadronic annihilation events collected at s√=91s=91 GeV with the OPAL detector at LEP. The study is based on four recently proposed observables that are sensitive to coherence effects in the perturbative regime. The measurement of these observables is presented, along with a comparison with the predictions of different parton shower models. The models include both conventional parton shower models and dipole antenna models. Different ordering variables are used to investigate their influence on the predictions.

UR - http://link.springer.com/content/pdf/10.1140%2Fepjc%2Fs10052-015-3766-1.pdf

U2 - 10.1140/epjc/s10052-015-3766-1

DO - 10.1140/epjc/s10052-015-3766-1

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JO - European Physical Journal C

JF - European Physical Journal C

IS - 12

M1 - 571

ER -

Measurement of observables sensitive to coherence effects in hadronic Z decays with the OPAL detector at LEP

Abstract

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Measurement of parton shower observables with OPAL

Measurement of observables sensitive to coherence effects in hadronic Z decays with the OPAL detector at LEP

Cite this