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Measurement of the WZ cross section and triple gauge couplings in pp¯ collisions at vs=1.96TeV

Abstract: This article describes the current most precise measurement of the WZ production cross section as well as limits on anomalous WWZ couplings at a center-of-mass energy of 1.96 TeV in proton-antiproton collisions for the Collider Detector at Fermilab (CDF). WZ candidates are reconstructed from decays containing three charged leptons and missing energy from a neutrino, where the charged leptons are either electrons or muons. Using data collected by the CDF II detector (7:1 fb1 of integrated luminosity), 63 candidate events are observed with the expected background contributing 8 1 events. The measured total cross section ðpp ! WZÞ ¼ 3:93þ0:60 0:53ðstatÞþ0:59 0:46ðsystÞ pb is in good agreement with the standard model prediction of 3:50 0:21. The same sample is used to set limits on anomalous WWZ couplings.

Authorship: Aaltonen T., Alvarez González B., Amerio S., Amidei D., Anastassov A., Annovi A., Antos J., Apollinari G., Appel J.A., Arisawa T., Artikov A., Asaadi J., Ashmanskas W., Auerbach B., Aurisano A., Azfar F., Badgett W., Bae T., Barbaro-Galtieri A., Barnes V.E., Barnett B.A., Barria P., Bartos P., Bauce M., Bedeschi F., Behari S., Bellettini G., Bellinger J., Benjamin D., Beretvas A., Bhatti A., Bisello D., Bizjak I., Bland K.R., Bl

Fuente: Physical Review D - Particles, Fields, Gravitation and Cosmology, 2012, 86(3), 031104

Publisher: American Physical Society

Publication date: 01/08/2012

No. of pages: 8

Publication type: Article

DOI: 10.1103/PhysRevD.86.031104

ISSN: 1550-7998,1550-2368,2470-0010,2470-0029

Publication Url: https://doi.org/10.1103/PhysRevD.86.031104

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