Study of heavy-flavor quarks produced in association with top-quark pairs at root(s)=7 TeV using the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10286944" target="_blank" >RIV/00216208:11320/14:10286944 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/14:00225794 RIV/68407700:21220/14:00225794 RIV/68407700:21340/14:00225794 RIV/68407700:21260/14:00225794 a 2 dalších

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevD.89.072012" target="_blank" >http://dx.doi.org/10.1103/PhysRevD.89.072012</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.89.072012" target="_blank" >10.1103/PhysRevD.89.072012</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Study of heavy-flavor quarks produced in association with top-quark pairs at root(s)=7 TeV using the ATLAS detector

Popis výsledku v původním jazyce

Using a sample of dilepton top-quark pair ((tt) over bar) candidate events, a study is performed of the production of top-quark pairs together with heavy-flavor (HF) quarks, the sum of (tt) over bar + b + X and (tt) over bar + c + X, collectively referred to as (tt) over bar + HF. The data set used corresponds to an integrated luminosity of 4.7 fb(-1) of proton-proton collisions at a center-of-mass energy of 7 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. The presence of additional HF (b or c) quarks in the (tt) over bar sample is inferred by looking for events with at least three b-tagged jets, where two are attributed to the b quarks from the (tt) over bar decays and the third to additional HF production. The dominant background to (tt) over bar + HF in this sample is (tt) over bar + jet events in which a light-flavor jet is misidentified as a heavy-flavor jet. To determine the heavy-and light-flavor content of the additional b-tagged jets, a fit to the vertex

Název v anglickém jazyce

Study of heavy-flavor quarks produced in association with top-quark pairs at root(s)=7 TeV using the ATLAS detector

Popis výsledku anglicky

Using a sample of dilepton top-quark pair ((tt) over bar) candidate events, a study is performed of the production of top-quark pairs together with heavy-flavor (HF) quarks, the sum of (tt) over bar + b + X and (tt) over bar + c + X, collectively referred to as (tt) over bar + HF. The data set used corresponds to an integrated luminosity of 4.7 fb(-1) of proton-proton collisions at a center-of-mass energy of 7 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. The presence of additional HF (b or c) quarks in the (tt) over bar sample is inferred by looking for events with at least three b-tagged jets, where two are attributed to the b quarks from the (tt) over bar decays and the third to additional HF production. The dominant background to (tt) over bar + HF in this sample is (tt) over bar + jet events in which a light-flavor jet is misidentified as a heavy-flavor jet. To determine the heavy-and light-flavor content of the additional b-tagged jets, a fit to the vertex

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>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 D - Particles, Fields, Gravitation and Cosmology

ISSN

1550-7998

e-ISSN

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Svazek periodika

89

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

23

Strana od-do

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Kód UT WoS článku

000335235200001

EID výsledku v databázi Scopus

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