Measurement of W+W- production in pp collisions at root s=7 TeV with the ATLAS detector and limits on anomalous WWZ and WW gamma couplings

Measurement of W+W- production in pp collisions at root s=7 TeV with the ATLAS detector and limits on anomalous WWZ and WW gamma couplings

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 sec...

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Detalles Bibliográficos
Autores principales: Aad, G, Abajyan, T, Abbott, B, Abdallah, J, Khalek, SA, Abdelalim, A, Abdinov, O, Aben, R, Abi, B, Abolins, M, AbouZeid, O, Abramowicz, H, Abreu, H, Acharya, B, Adamczyk, L, Adams, D, Addy, T, Adelman, J, Adomeit, S, Adragna, P, Adye, T, Aefsky, S, Aguilar-Saavedra, J, Agustoni, M, Aharrouche, M
Formato: Journal article
Lenguaje:English
Publicado: 2013
Descripción
Sumario: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 44.7-1.9+2.1 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. © 2013 CERN.

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