Precise determination of αS(MZ) from global fits of e+e− data to NNLO+NNLL predictions

Andrii Verbytskyi; Andrea Banfi; Adam Kardos; Pier Francesco Monni; Stefan Kluth; Gábor Somogyi; Zoltán Szőr; Zoltán Trocsányi; Zoltán Tulipánt; Giulia Zanderighi

doi:10.1016/j.nuclphysbps.2018.12.016

Precise determination of α_S(M_Z) from global fits of e⁺e⁻ data to NNLO+NNLL predictions

Andrii Verbytskyi
, Andrea Banfi
, Adam Kardos
, Pier Francesco Monni
, Stefan Kluth
, Gábor Somogyi
, Zoltán Szőr
, Zoltán Trocsányi
, Zoltán Tulipánt
, Giulia Zanderighi

Max-Planck Institut für Physik
University of Sussex
University of Debrecen
European Organization for Nuclear Research
Johannes Gutenberg University

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

Abstract

We present a comparison of the computation of energy-energy correlations and Durham algorithm jet rates in e⁺e⁻ collisions at next-to-next-to-leading logarithmic accuracy matched with the next-to-next-to-leading order perturbative prediction to LEP, PEP, PETRA, SLC and TRISTAN data. With these predictions we perform global extractions of the strong coupling constant taking into account non-perturbative effects modelled with modern Monte Carlo event generators that simulate NLO QCD corrections.

Original language	English
Pages (from-to)	87-92
Number of pages	6
Journal	Nuclear and Particle Physics Proceedings
Volume	300-302
DOIs	https://doi.org/10.1016/j.nuclphysbps.2018.12.016
State	Published - 1 Jul 2018
Externally published	Yes

Keywords

QCD
electron-positron collisions
energy-energy correlations
event shapes
multijets
strong coupling constant

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10.1016/j.nuclphysbps.2018.12.016

Cite this

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title = "Precise determination of αS(MZ) from global fits of e+e− data to NNLO+NNLL predictions",

abstract = "We present a comparison of the computation of energy-energy correlations and Durham algorithm jet rates in e+e− collisions at next-to-next-to-leading logarithmic accuracy matched with the next-to-next-to-leading order perturbative prediction to LEP, PEP, PETRA, SLC and TRISTAN data. With these predictions we perform global extractions of the strong coupling constant taking into account non-perturbative effects modelled with modern Monte Carlo event generators that simulate NLO QCD corrections.",

keywords = "QCD, electron-positron collisions, energy-energy correlations, event shapes, multijets, strong coupling constant",

author = "Andrii Verbytskyi and Andrea Banfi and Adam Kardos and Monni, \{Pier Francesco\} and Stefan Kluth and G{\'a}bor Somogyi and Zolt{\'a}n Sz{\H o}r and Zolt{\'a}n Trocs{\'a}nyi and Zolt{\'a}n Tulip{\'a}nt and Giulia Zanderighi",

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year = "2018",

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doi = "10.1016/j.nuclphysbps.2018.12.016",

language = "English",

volume = "300-302",

pages = "87--92",

journal = "Nuclear and Particle Physics Proceedings",

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T1 - Precise determination of αS(MZ) from global fits of e+e− data to NNLO+NNLL predictions

AU - Verbytskyi, Andrii

AU - Banfi, Andrea

AU - Kardos, Adam

AU - Monni, Pier Francesco

AU - Kluth, Stefan

AU - Somogyi, Gábor

AU - Szőr, Zoltán

AU - Trocsányi, Zoltán

AU - Tulipánt, Zoltán

AU - Zanderighi, Giulia

PY - 2018/7/1

Y1 - 2018/7/1

N2 - We present a comparison of the computation of energy-energy correlations and Durham algorithm jet rates in e+e− collisions at next-to-next-to-leading logarithmic accuracy matched with the next-to-next-to-leading order perturbative prediction to LEP, PEP, PETRA, SLC and TRISTAN data. With these predictions we perform global extractions of the strong coupling constant taking into account non-perturbative effects modelled with modern Monte Carlo event generators that simulate NLO QCD corrections.

AB - We present a comparison of the computation of energy-energy correlations and Durham algorithm jet rates in e+e− collisions at next-to-next-to-leading logarithmic accuracy matched with the next-to-next-to-leading order perturbative prediction to LEP, PEP, PETRA, SLC and TRISTAN data. With these predictions we perform global extractions of the strong coupling constant taking into account non-perturbative effects modelled with modern Monte Carlo event generators that simulate NLO QCD corrections.

KW - QCD

KW - electron-positron collisions

KW - energy-energy correlations

KW - event shapes

KW - multijets

KW - strong coupling constant

UR - https://www.scopus.com/pages/publications/85061730665

U2 - 10.1016/j.nuclphysbps.2018.12.016

DO - 10.1016/j.nuclphysbps.2018.12.016

M3 - Article

AN - SCOPUS:85061730665

SN - 2405-6014

VL - 300-302

SP - 87

EP - 92

JO - Nuclear and Particle Physics Proceedings

JF - Nuclear and Particle Physics Proceedings

ER -

Precise determination of α_S(M_Z) from global fits of e⁺e⁻ data to NNLO+NNLL predictions

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Keywords

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