Measurement of ZZ Production in Leptonic Final States at √s of 1.96 TeV at CDF
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Aaltonen, Timo Antero; Amerio, Silvia; Amidei, Dante; Anastassov, Anton; Annovi, Alberto; Antos, Jaroslav; Apollinari, Giorgio; Appel, Jeffrey A.; Casal Laraña, Bruno; Cuevas Maestro, Francisco Javier; Gómez Gramuglio, Gervasio; Palencia Cortezón, José Enrique; Rodrigo Anoro, Teresa; Ruiz Jimeno, Alberto; Scodellaro, Luca; Vila Álvarez, Iván; Vilar Cortabitarte, Rocío; Vizán García, Jesús Manuel; Apresyan, Artur; [et al.]Fecha
2012-03-07Derechos
© 2012 American Physical Society
Publicado en
Physical review letters, vol. 108, iss. 10, art. num. 101801 (2012)
Editorial
American Physical Society
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Resumen/Abstract
In this Letter, we present a precise measurement of the total ZZ production cross section in pp̅ collisions at √s=1.96 TeV, using data collected with the CDF II detector corresponding to an integrated luminosity of approximately 6 fb-1. The result is obtained by combining separate measurements in the four-charged (ℓℓℓ′ℓ′) and two-charged-lepton and two-neutral-lepton (ℓℓνν) decay modes of the Z boson pair. The combined measured cross section for pp̅ →ZZ is 1.64-0.38+0.44 pb. This is the most precise measurement of the ZZ production cross section in 1.96 TeV pp̅ collisions to date.
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