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Measurement of the W -> τντ cross section in pp collisions at √s=7 TeV with the ATLAS experiment

CollaborationWith : Abdelalim Aly, Ahmed Aly / Alexandre, Gauthier / Backes, Moritz / Barone, Gaetano / Bell, Paul / Bell, William / Berglund, Frida Elina / Blondel, Alain / Bucci, Francesca / Clark, Allan Geoffrey / Dao, Valerio / Ferrere, Didier / Gadomski, Szymon / Garcia Navarro, Jose Enrique / Gaumer, Olivier / Gonzalez Sevilla, Sergio / Goulette, Marc / Hamilton, Andrew / Iacobucci, Giuseppe / Leger, Annie / Lister, Alison / Martin Dit Latour, Bertrand / Mora Herrera, Maria Clemencia Rosario / Nektarijevic, Snezana / Nikolics, Katalin / Pasztor, Arpad / Pohl, Martin / Robichaud-Veronneau, Andrée / Rosbach, Kilian / Rosselet, Laurent / Wu, Xin
Published in Physics Letters. B. 2012, vol. 706, no. 4-5, p. 276-294
Abstract The cross section for the production of W bosons with subsequent decay W→τντ is measured with the ATLAS detector at the LHC. The analysis is based on a data sample that was recorded in 2010 at a proton–proton center-of-mass energy of √s=7 TeV and corresponds to an integrated luminosity of 34 pb−1. The cross section is measured in a region of high detector acceptance and then extrapolated to the full phase space. The product of the total W production cross section and the W→τντ branching ratio is measured to be σW→ τντ tot =11.1±0.3(stat)±1.7(syst)±0.4(lumi) nb.
Keywords W bosonStandard Modelτ Lepton
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ATLAS COLLABORATION. Measurement of the W -> τντ cross section in pp collisions at √s=7 TeV with the ATLAS experiment. In: Physics Letters. B, 2012, vol. 706, n° 4-5, p. 276-294. https://archive-ouverte.unige.ch/unige:40825

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Deposited on : 2014-10-10

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