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Measurement of W+W production in pp collisions at √s=7  TeV with the ATLAS detector and limits on anomalous WWZ and WWγ couplings

CollaborationWith : Abdelalim Aly, Ahmed Aly / Alexandre, Gauthier / Backes, Moritz / Barone, Gaetano / Bell, Paul / Bell, William / Benhar Noccioli, Eleonora / Blondel, Alain / Bucci, Francesca / Clark, Allan Geoffrey / Dao, Valerio / Doglioni, Caterina / Ferrere, Didier / Gadomski, Szymon / Gonzalez Sevilla, Sergio / Goulette, Marc / Iacobucci, Giuseppe / La Rosa, Alessandro / Lister, Alison / Martin Dit Latour, Bertrand / Mermod, Philippe / Mora Herrera, Maria Clemencia Rosario / Nektarijevic, Snezana / Nikolics, Katalin / Pasztor, Arpad / Picazio, Attilio / Pohl, Martin / Rosbach, Kilian / Rosselet, Laurent / Wu, Xin
Published in Physical Review. D. 2013, vol. 87, no. 11, p. 112001
Abstract This paper presents a measurement of the W+W− production cross section in pp collisions at s√=7  TeV. The leptonic decay channels are analyzed using data corresponding to an integrated luminosity of 4.6  fb−1 collected with the ATLAS detector at the Large Hadron Collider. The W+W− production cross section σ(pp→W+W−+X) is measured to be 51.9±2.0(stat)±3.9(syst)±2.0(lumi)  pb, compatible with the Standard Model prediction of 44.7+2.1−1.9  pb. A measurement of the normalized fiducial cross section as a function of the leading lepton transverse momentum is also presented. The reconstructed transverse momentum distribution of the leading lepton is used to extract limits on anomalous WWZ and WWγ couplings.
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ATLAS COLLABORATION. Measurement of W+W production in pp collisions at √s=7  TeV with the ATLAS detector and limits on anomalous WWZ and WWγ couplings. In: Physical Review. D, 2013, vol. 87, n° 11, p. 112001. https://archive-ouverte.unige.ch/unige:40018

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Deposited on : 2014-09-08

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