Measurement of the polarisation of W bosons produced with large transverse momentum in pp collisions at sqrt(s)=7 TeV with the ATLAS experiment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10128663" target="_blank" >RIV/00216208:11320/12:10128663 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/12:00389787

Result on the web

<a href="http://link.springer.com/article/10.1140%2Fepjc%2Fs10052-012-2001-6" target="_blank" >http://link.springer.com/article/10.1140%2Fepjc%2Fs10052-012-2001-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-012-2001-6" target="_blank" >10.1140/epjc/s10052-012-2001-6</a>

Result language

angličtina

Original language name

Measurement of the polarisation of W bosons produced with large transverse momentum in pp collisions at sqrt(s)=7 TeV with the ATLAS experiment

Original language description

This paper describes an analysis of the angular distribution of W->e? and W->?? decays, using data from pp collisions at sqrt(s)=7 TeV recorded with the ATLAS detector at the LHC in 2010, corresponding to an integrated luminosity of about 35 pb-1. Usingthe decay lepton transverse momentum and the missing transverse momentum, the W decay angular distribution projected onto the transverse plane is obtained and analysed in terms of helicity fractions f 0, f L and f R over two ranges of W transverse momentum (pWT):35<pWT<50 GeV and pWT>50 GeV . Good agreement is found with theoretical predictions. For pWT>50 GeV , the values of f 0 and f L - f R, averaged over charge and lepton flavour, are measured to be: f 0=0.127+-0.030+-0.108 and f L - f R=0.252+-0.017+-0.030, where the first uncertainties are statistical, and the second include all systematic effects.

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

<a href="/en/project/LA08032" target="_blank" >LA08032: International experiment ATLAS-CERN</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2012

Confidentiality

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

Name of the periodical

European Physical Journal C

ISSN

1434-6044

e-ISSN

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Volume of the periodical

72

Issue of the periodical within the volume

5

Country of publishing house

DE - GERMANY

Number of pages

30

Pages from-to

1-30

UT code for WoS article

000304778800023

EID of the result in the Scopus database

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