Measurement of the inclusive leptonic asymmetry in top-quark pairs that decay to two charged leptons at CDF

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00501305" target="_blank" >RIV/68378271:_____/14:00501305 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevLett.113.042001" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.113.042001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.113.042001" target="_blank" >10.1103/PhysRevLett.113.042001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of the inclusive leptonic asymmetry in top-quark pairs that decay to two charged leptons at CDF

Popis výsledku v původním jazyce

We measure the inclusive forward–backward asymmetry of the charged-lepton pseudorapidities from top-quark pairs produced in proton–antiproton collisions and decaying to final states that contain two charged leptons (electrons or muons). The data are collected with the Collider Detector at Fermilab and correspond to an integrated luminosity of 9.1  fb-1. We measure the leptonic forward–backward asymmetry, AFBℓ, to be 0.072±0.060 and the leptonic pair forward–backward asymmetry, AFBℓℓ, to be 0.076±0.082. The measured values can be compared with the standard model predictions of AFBℓ=0.038±0.003 and AFBℓℓ=0.048±0.004, respectively. Additionally, we combine the AFBℓ result with a previous determination from a final state with a single lepton and hadronic jets and obtain AFBℓ=0.090-0.026+0.028

Název v anglickém jazyce

Measurement of the inclusive leptonic asymmetry in top-quark pairs that decay to two charged leptons at CDF

Popis výsledku anglicky

We measure the inclusive forward–backward asymmetry of the charged-lepton pseudorapidities from top-quark pairs produced in proton–antiproton collisions and decaying to final states that contain two charged leptons (electrons or muons). The data are collected with the Collider Detector at Fermilab and correspond to an integrated luminosity of 9.1  fb-1. We measure the leptonic forward–backward asymmetry, AFBℓ, to be 0.072±0.060 and the leptonic pair forward–backward asymmetry, AFBℓℓ, to be 0.076±0.082. The measured values can be compared with the standard model predictions of AFBℓ=0.038±0.003 and AFBℓℓ=0.048±0.004, respectively. Additionally, we combine the AFBℓ result with a previous determination from a final state with a single lepton and hadronic jets and obtain AFBℓ=0.090-0.026+0.028

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Physical Review Letters

ISSN

0031-9007

e-ISSN

—

Svazek periodika

113

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

000339620300002

EID výsledku v databázi Scopus

2-s2.0-84905014471