Measurements of the charge asymmetry in top-quark pair production in the dilepton final state at s=8  TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00467517" target="_blank" >RIV/68378271:_____/16:00467517 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevD.94.032006" target="_blank" >http://dx.doi.org/10.1103/PhysRevD.94.032006</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.94.032006" target="_blank" >10.1103/PhysRevD.94.032006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurements of the charge asymmetry in top-quark pair production in the dilepton final state at s=8  TeV with the ATLAS detector

Popis výsledku v původním jazyce

Measurements of the top-antitop quark pair production charge asymmetry in the dilepton channel, characterized by two high-pT leptons (electrons or muons), are presented using data corresponding to an integrated luminosity of 20.3  fb-1 from pp collisions at a center-of-mass energy s=8  TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. Inclusive and differential measurements as a function of the invariant mass, transverse momentum, and longitudinal boost of the tt system are performed both in the full phase space and in a fiducial phase space closely matching the detector acceptance. Two observables are studied: ACℓℓ based on the selected leptons and ACtt based on the reconstructed tt final state. The inclusive asymmetries are measured in the full phase space to be ACℓℓ=0.0080.006 and ACtt=0.0210.016, which are in agreement with the Standard Model predictions of ACℓℓ=0.00640.0003 and ACtt=0.01110.0004.

Název v anglickém jazyce

Measurements of the charge asymmetry in top-quark pair production in the dilepton final state at s=8  TeV with the ATLAS detector

Popis výsledku anglicky

Measurements of the top-antitop quark pair production charge asymmetry in the dilepton channel, characterized by two high-pT leptons (electrons or muons), are presented using data corresponding to an integrated luminosity of 20.3  fb-1 from pp collisions at a center-of-mass energy s=8  TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. Inclusive and differential measurements as a function of the invariant mass, transverse momentum, and longitudinal boost of the tt system are performed both in the full phase space and in a fiducial phase space closely matching the detector acceptance. Two observables are studied: ACℓℓ based on the selected leptons and ACtt based on the reconstructed tt final state. The inclusive asymmetries are measured in the full phase space to be ACℓℓ=0.0080.006 and ACtt=0.0210.016, which are in agreement with the Standard Model predictions of ACℓℓ=0.00640.0003 and ACtt=0.01110.0004.

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

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Physical Review D

ISSN

2470-0010

e-ISSN

—

Svazek periodika

94

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

31

Strana od-do

—

Kód UT WoS článku

000381893100002

EID výsledku v databázi Scopus

2-s2.0-84984920773