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

Autores
Anduaga, Xabier Sebastián; Dova, María Teresa; Monticelli, Fernando Gabriel; Tripiana, Martín F.; The ATLAS Collaboration
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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−1, were collected by the ATLAS experiment at the Large Hadron Collider in 2010. The measured value of the τ polarization is Pτ = −1.06 ± 0.04 (stat) +0.05−0.07 (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.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Física
Tau
w boson
ATLAS experiment
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/79897

id SEDICI_05cb5a3fdea4c46b51af19885051f1e4
oai_identifier_str oai:sedici.unlp.edu.ar:10915/79897
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Measurement of τ polarization in W → τν decays with the ATLAS detector in pp collisions at √s = 7 TeVAnduaga, Xabier SebastiánDova, María TeresaMonticelli, Fernando GabrielTripiana, Martín F.The ATLAS CollaborationCiencias ExactasFísicaTauw bosonATLAS experimentIn 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.Facultad de Ciencias Exactas2012-07-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/79897enginfo:eu-repo/semantics/altIdentifier/issn/1434-6052info:eu-repo/semantics/altIdentifier/doi/10.1140/epjc/s10052-012-2062-6info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:12:32Zoai:sedici.unlp.edu.ar:10915/79897Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:12:32.565SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Measurement of τ polarization in W → τν decays with the ATLAS detector in pp collisions at √s = 7 TeV
title Measurement of τ polarization in W → τν decays with the ATLAS detector in pp collisions at √s = 7 TeV
spellingShingle Measurement of τ polarization in W → τν decays with the ATLAS detector in pp collisions at √s = 7 TeV
Anduaga, Xabier Sebastián
Ciencias Exactas
Física
Tau
w boson
ATLAS experiment
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
dc.creator.none.fl_str_mv Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author Anduaga, Xabier Sebastián
author_facet Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author_role author
author2 Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
Tau
w boson
ATLAS experiment
topic Ciencias Exactas
Física
Tau
w boson
ATLAS experiment
dc.description.none.fl_txt_mv 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.
Facultad de Ciencias Exactas
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.
publishDate 2012
dc.date.none.fl_str_mv 2012-07-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/79897
url http://sedici.unlp.edu.ar/handle/10915/79897
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1434-6052
info:eu-repo/semantics/altIdentifier/doi/10.1140/epjc/s10052-012-2062-6
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
_version_ 1844615995870674944
score 13.070432