Measurement of the W boson polarization in top quark decays with the ATLAS detector

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F12%3A00202625" target="_blank" >RIV/68407700:21340/12:00202625 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21260/12:00202625 RIV/68407700:21670/12:00202625 RIV/68407700:21220/12:00202625

Result on the web

<a href="http://dx.doi.org/10.1007/JHEP06(2012)088" target="_blank" >http://dx.doi.org/10.1007/JHEP06(2012)088</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP06(2012)088" target="_blank" >10.1007/JHEP06(2012)088</a>

Result language

angličtina

Original language name

Measurement of the W boson polarization in top quark decays with the ATLAS detector

Original language description

This paper presents measurements of the polarization of W bosons in top quark decays, derived from t (t) over bar events with missing transverse momentum, one charged lepton and at least four jets, or two charged leptons and at least two jets. Data frompp collisions at a centre-of-mass energy of 7 TeV were collected with the ATLAS experiment at the LHC and correspond to an integrated luminosity of 1.04 fb(-1). The measured fractions of longitudinally, left-and right-handed polarization are F-0 = 0.67 +/- 0.07, F-L = 0.32 +/- 0.04 and F-R = 0.01 +/- 0.05, in agreement with the Standard Model predictions. As the polarization of the W bosons in top quark decays is sensitive to the Wtb vertex Lorentz structure and couplings, the measurements were used toset limits on anomalous contributions to the Wtb couplings.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BF - Elementary particle theory and high energy physics

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

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

Name of the periodical

JOURNAL OF HIGH ENERGY PHYSICS

ISSN

1029-8479

e-ISSN

—

Volume of the periodical

1206

Issue of the periodical within the volume

6

Country of publishing house

IT - ITALY

Number of pages

46

Pages from-to

"088-1"-"088-46"

UT code for WoS article

000306416500089

EID of the result in the Scopus database

2-s2.0-84864456329