INVESTIGADORES
DOVA Maria Teresa
artículos
Título:
Measurement of the ZZ Production Cross Section and Limits on Anomalous NeutralTriple Gauge Couplings in Proton-Proton Collisions at 7 TeV with the ATLAS Detector
Autor/es:
ATLAS COLLABORATION, G. AAD, M.T. DOVA ET AL
Revista:
PHYSICAL REVIEW LETTERS
Editorial:
AMER PHYSICAL SOC
Referencias:
Lugar: New York; Año: 2012 vol. 108 p. 41804 - 41834
ISSN:
0031-9007
Resumen:
A measurement of the ZZ production cross section in proton-proton collisions at 7 TeV using data corresponding to an integrated luminosity of 1:02 fb1 recorded by the ATLAS experiment at the LHC is presented. Twelve events containing two Z boson candidates decaying to electrons and/or muons are observed, with an expected background of 0.3pm 0.3 events. The cross section measured in a phase-space region with good detector acceptance and for dilepton masses within the range 66 to 116 GeV is sigma=19.4 fb. The resulting total cross section for on-shell ZZ production, 8.5 pb is consistent with the standard model expectation calculated at the next-to-leading order in QCD. Limits on anomalous neutral triple gauge boson couplings are derived.
