Measurement of τ polarization in W→τν decays with the ATLAS detector in pp collisions at s√=7 TeV
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- 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 P\(_τ\)=−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 % CLIn 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 P\(_τ\)=−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.…
URN: | urn:nbn:de:bvb:20-opus-127807 |
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Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Fakultät für Physik und Astronomie |
Sprache der Veröffentlichung: | Englisch |
Titel des übergeordneten Werkes / der Zeitschrift (Englisch): | The European Physical Journal C |
Erscheinungsjahr: | 2012 |
Band / Jahrgang: | 72 |
Heft / Ausgabe: | 2062 |
Originalveröffentlichung / Quelle: | European Physical Journal C (2012) 72:2062 DOI 10.1140/epjc/s10052-012-2062-6 |
DOI: | https://doi.org/10.1140/epjc/s10052-012-2062-6 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 5 Naturwissenschaften und Mathematik / 53 Physik / 539 Moderne Physik |
Freie Schlagwort(e): | ATLAS detector; Monte Carlo methods; calorimeter; detector track; electroweak background; energy scale uncertainty; jet axis; jet energy; multijet background; multijet event; signal template; total systematic uncertainty; track momentum; track multipilicty; transverse momentum |
Datum der Freischaltung: | 14.11.2016 |
Urhebende Körperschaft: | ATLAS Collaboration |
Lizenz (Deutsch): | CC BY: Creative-Commons-Lizenz: Namensnennung |