Measurement of τ polarization in W → τν decays with the ATLAS detector in pp collisions at √s = 7 TeV

In this paper, a measurement of τ polarization in W → τν decays is presented. It is measured from the energies of the decay products in hadronic τ decays with a single final state charged particle. The data, corresponding to an integrated luminosity of 24 pb<sup>−1</sup>, were collected...

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Autores principales: Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín F., The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Ciencias Exactas
Física
Tau
w boson
ATLAS experiment
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/79897
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-79897
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Tau
w boson
ATLAS experiment
spellingShingle Ciencias Exactas
Física
Tau
w boson
ATLAS experiment
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
Measurement of τ polarization in W → τν decays with the ATLAS detector in pp collisions at √s = 7 TeV
topic_facet Ciencias Exactas
Física
Tau
w boson
ATLAS experiment
description In this paper, a measurement of τ polarization in W → τν decays is presented. It is measured from the energies of the decay products in hadronic τ decays with a single final state charged particle. The data, corresponding to an integrated luminosity of 24 pb<sup>−1</sup>, were collected by the ATLAS experiment at the Large Hadron Collider in 2010. The measured value of the τ polarization is P<sub>τ</sub> = −1.06 ± 0.04 (stat) <sup>+0.05</sup><sub>−0.07</sub> (syst), in agreement with the Standard Model prediction, and is consistent with a physically allowed 95% CL interval [−1, −0.91]. Measurements of τ polarization have not previously been made at hadron colliders.
format Articulo
Articulo
author Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author_facet Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author_sort Anduaga, Xabier Sebastián
title Measurement of τ polarization in W → τν decays with the ATLAS detector in pp collisions at √s = 7 TeV
title_short Measurement of τ polarization in W → τν decays with the ATLAS detector in pp collisions at √s = 7 TeV
title_full Measurement of τ polarization in W → τν decays with the ATLAS detector in pp collisions at √s = 7 TeV
title_fullStr Measurement of τ polarization in W → τν decays with the ATLAS detector in pp collisions at √s = 7 TeV
title_full_unstemmed Measurement of τ polarization in W → τν decays with the ATLAS detector in pp collisions at √s = 7 TeV
title_sort measurement of τ polarization in w → τν decays with the atlas detector in pp collisions at √s = 7 tev
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/79897
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