Measurement of transverse energy-energy correlations in multi-jet events in pp collisions at s = 7 TeV using the ATLAS detector and determination of the strong coupling constant ?s(mZ)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00455531" target="_blank" >RIV/68378271:_____/15:00455531 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.physletb.2015.09.050" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2015.09.050</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2015.09.050" target="_blank" >10.1016/j.physletb.2015.09.050</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of transverse energy-energy correlations in multi-jet events in pp collisions at s = 7 TeV using the ATLAS detector and determination of the strong coupling constant ?s(mZ)

Popis výsledku v původním jazyce

High transverse momentum jets produced in pp collisions at a centre of mass energy of 7 TeV are used to measure the transverse energy?energy correlation function and its associated azimuthal asymmetry. The data were recorded with the ATLAS detector at the LHC in the year 2011 and correspond to an integrated luminosity of 158 pb 1 . The selection criteria demand the average transverse momentum of the two leading jets in an event to be larger than 250 GeV. The data at detector level are well described byMonte Carlo event generators. They are unfolded to the particle level and compared with theoretical calculations at next-to-leading-order accuracy. The agreement between data and theory is good and provides a precision test of perturbative Quantum Chromodynamics at large momentum transfers. From this comparison, the strong coupling constant given at the Z boson mass is determined to be ?s(mZ)=0.11730.0010 (exp.) 0.0026+0.0065 (theo.)

Název v anglickém jazyce

Measurement of transverse energy-energy correlations in multi-jet events in pp collisions at s = 7 TeV using the ATLAS detector and determination of the strong coupling constant ?s(mZ)

Popis výsledku anglicky

High transverse momentum jets produced in pp collisions at a centre of mass energy of 7 TeV are used to measure the transverse energy?energy correlation function and its associated azimuthal asymmetry. The data were recorded with the ATLAS detector at the LHC in the year 2011 and correspond to an integrated luminosity of 158 pb 1 . The selection criteria demand the average transverse momentum of the two leading jets in an event to be larger than 250 GeV. The data at detector level are well described byMonte Carlo event generators. They are unfolded to the particle level and compared with theoretical calculations at next-to-leading-order accuracy. The agreement between data and theory is good and provides a precision test of perturbative Quantum Chromodynamics at large momentum transfers. From this comparison, the strong coupling constant given at the Z boson mass is determined to be ?s(mZ)=0.11730.0010 (exp.) 0.0026+0.0065 (theo.)

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BF - Elementární částice a fyzika vysokých energií

OECD FORD obor

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Projekt

<a href="/cs/project/LG13009" target="_blank" >LG13009: Mezinárodní experiment ATLAS-CERN</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physics Letters. B

ISSN

0370-2693

e-ISSN

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Svazek periodika

750

Číslo periodika v rámci svazku

Nov

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

21

Strana od-do

427-447

Kód UT WoS článku

000364250600072

EID výsledku v databázi Scopus

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