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

Aad, G. and Abajyan, T. and Abbott, B. and Abdallah, J. and Khalek, S. A. and Abdelalim, A. A. and Abdinov, O. and Aben, R. and Abi, B. and Abolins, M. and AbouZeid, O. S. and Abramowicz, H. and Abreu, H. and Acharya, B. S. and Adamczyk, L. and Adams, D. L. and Addy, T. N. and Adelman, J. and Adomeit, S. and Adragna, P. and Adye, T. and Aefsky, S. and Aguilar-Saavedra, J. A. and Agustoni, M. and Aharrouche, M. and Ahlen, S. P. and Ahles, F. and Ahmad, A. and Ahsan, M. and Aielli, G. and Krasznahorkay, Attila and Pásztor, Gabriella and Tóth, József (2013) Measurement of W +W − production in pp collisions at √s = 7 TeV with the ATLAS detector and limits on anomalous W W Z and W W γ couplings. PHYSICAL REVIEW D, 87 (11). ISSN 2470-0010

Preview

Text 1210.2979v3.pdf Available under License Creative Commons Attribution. Download (1MB) | Preview

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 W W Z and W W γ couplings.

Actions (login required)

Edit Item