Measurement of tau polarization in W -> tau nu decays with the ATLAS detector in pp collisions at root s=7 TeV
- NázevTitle
- Measurement of tau polarization in W -> tau nu decays with the ATLAS detector in pp collisions at root s=7 TeVMeasurement of tau polarization in W -> tau nu decays with the ATLAS detector in pp collisions at root s=7 TeV
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- G. Aad, B. Abbott, J. Abdallah, S. Abdel Khalek, A. A. Abdelalim, K. Augsten, T. Holý, T. Horažďovský, Z. Hubáček, J. Jakůbek, Z. Kohout, V. Král, F. Krejčí, S. Pospíšil, V. Šimák, T. Slavíček, K. Smolek, J. Sodomka, M. Solar, J. Šolc, B. Sopko, V. Sopko, I. Štekl, D. Tureček, V. Vacek, M. Vlasák, P. Vokáč
- Klíčová slovaKeywords
- W boson, tau polarization
- ExperimentCollaboration
- ATLAS
- DOIDOI
- 10.1140/epjc/s10052-012-2062-6
- Časopis / citaceJournal / citation
- The European Physical Journal C 72(7), 2062 (2012) · ISSN 1434-6044
- RokYear
- 2012
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Mezinárodní experiment ATLAS-CERNInternational Experiment ATLAS-CERN; Fundamentální experimenty ve fyzice mikrosvětaFundamental Experiments in Physics of Microworld; Matematické, počítačové a experimentální metody ve fyziceMathematical, Computer and Experimental Methods in Physics; Centrum částicové fyzikyCenter for Particle Physics; Matematické, počítačové a experimentální metody ve fyziceMathematical, Computer and Experimental Methods in Physics; Mezinárodní experiment ATLAS-CERNInternational Experiment ATLAS-CERN
- CitovánoCited by
- 60 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- https://link.springer.com/content/pdf/10.1140/epjc/s10052-012-2062-6.pdf
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
In this paper, a measurement of tau polarization in W -> tau nu decays is presented. It is measured from the energies of the decay products in hadronic tau 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 tau polarization is P-tau = -1.06 +/- 0.04 (stat)(-0.07)(+0.05) (syst), in agreement with the Standard Model prediction, and is consistent with a physically allowed 95 % CL interval [-1,-0.91]. Measurements of tau polarization have not previously been made at hadron colliders.
In this paper, a measurement of tau polarization in W -> tau nu decays is presented. It is measured from the energies of the decay products in hadronic tau 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 tau polarization is P-tau = -1.06 +/- 0.04 (stat)(-0.07)(+0.05) (syst), in agreement with the Standard Model prediction, and is consistent with a physically allowed 95 % CL interval [-1,-0.91]. Measurements of tau polarization have not previously been made at hadron colliders.