Measurement of the correlations between the polar angles of leptons from top quark decays in the helicity basis at s=7TeV using the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00466737" target="_blank" >RIV/68378271:_____/16:00466737 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevD.93.012002" target="_blank" >http://dx.doi.org/10.1103/PhysRevD.93.012002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.93.012002" target="_blank" >10.1103/PhysRevD.93.012002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of the correlations between the polar angles of leptons from top quark decays in the helicity basis at s=7TeV using the ATLAS detector

Popis výsledku v původním jazyce

A measurement of the correlations between the polar angles of leptons from the decay of pair-produced t and t quarks in the helicity basis is reported, using proton-proton collision data collected by the ATLAS detector at the LHC. The dataset corresponds to an integrated luminosity of 4.6  fb-1 at a center-of-mass energy of s=7  TeV collected during 2011. Candidate events are selected in the dilepton topology with large missing transverse momentum and at least two jets. The angles θ1 and θ2 between the charged leptons and the direction of motion of the parent quarks in the tt rest frame are sensitive to the spin information, and the distribution of cosθ1cosθ2 is sensitive to the spin correlation between the t and t quarks. The distribution is unfolded to parton level and compared to the next-to-leading order prediction. A good agreement is observed.n

Název v anglickém jazyce

Measurement of the correlations between the polar angles of leptons from top quark decays in the helicity basis at s=7TeV using the ATLAS detector

Popis výsledku anglicky

A measurement of the correlations between the polar angles of leptons from the decay of pair-produced t and t quarks in the helicity basis is reported, using proton-proton collision data collected by the ATLAS detector at the LHC. The dataset corresponds to an integrated luminosity of 4.6  fb-1 at a center-of-mass energy of s=7  TeV collected during 2011. Candidate events are selected in the dilepton topology with large missing transverse momentum and at least two jets. The angles θ1 and θ2 between the charged leptons and the direction of motion of the parent quarks in the tt rest frame are sensitive to the spin information, and the distribution of cosθ1cosθ2 is sensitive to the spin correlation between the t and t quarks. The distribution is unfolded to parton level and compared to the next-to-leading order prediction. A good agreement is observed.n

Druh

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

CEP obor

BF - Elementární částice a fyzika vysokých energií

OECD FORD obor

—

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

93

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

23

Strana od-do

—

Kód UT WoS článku

000368324500002

EID výsledku v databázi Scopus

2-s2.0-84956625743