Measurement of the ZZ production cross section and limits on anomalous neutral triple gauge couplings with ATLAS

Mengarelli, Alberto (2013) Measurement of the ZZ production cross section and limits on anomalous neutral triple gauge couplings with ATLAS , [Dissertation thesis], Alma Mater Studiorum Università di Bologna. Dottorato di ricerca in Fisica, 25 Ciclo. DOI 10.6092/unibo/amsdottorato/5196.
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Abstract

The main work of this thesis concerns the measurement of the production cross section using LHC 2011 data collected at a center-of-mass energy equal to 7 TeV by the ATLAS detector and resulting in a total integrated luminosity of 4.6 inverse fb. The ZZ total cross section is finally compared with the NLO prediction calculated with modern Monte Carlo generators. In addition, the three differential distributions (∆φ(l,l), ZpT and M4l) are shown unfolded back to the underlying distributions using a Bayesian iterative algorithm. Finally, the transverse momentum of the leading Z is used to provide limits on anoumalus triple gauge couplings forbidden in the Standard Model.

Abstract
Tipologia del documento
Tesi di dottorato
Autore
Mengarelli, Alberto
Supervisore
Co-supervisore
Dottorato di ricerca
Scuola di dottorato
Scienze matematiche, fisiche ed astronomiche
Ciclo
25
Coordinatore
Settore disciplinare
Settore concorsuale
Parole chiave
ZZ, diboson, anoumalus couplings
URN:NBN
DOI
10.6092/unibo/amsdottorato/5196
Data di discussione
20 Marzo 2013
URI

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