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Properties of the new boson

One year after the ATLAS and CMS discovery, supported by D0 and CDF measurements, the properties of the new boson have been studied with increasing accuracy using the LHC $pp$ collision data and the Tevatron $p \bar{p}$ data. The mass of the new resonance has been measured by ATLAS and CMS with a fi...

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Detalles Bibliográficos
Autor principal: Cerutti, F
Lenguaje:eng
Publicado: 2013
Materias:
Acceso en línea:http://cds.cern.ch/record/1598145
Descripción
Sumario:One year after the ATLAS and CMS discovery, supported by D0 and CDF measurements, the properties of the new boson have been studied with increasing accuracy using the LHC $pp$ collision data and the Tevatron $p \bar{p}$ data. The mass of the new resonance has been measured by ATLAS and CMS with a fit to the \hgg\ and \hzzllll\ mass spectra with an accuracy of a few per mill. The spin have been measured by looking at observable sensitive to the $J^{CP}$ quantum numbers of the new resonance and found to be in agreement with the SM scalar hypothesis. The measurements of the production cross-sections times branching ratios are compatible with the SM Higgs boson predictions. The coupling of the new boson have been tested performing a fit to the measured yields and found to be in agreement with SM predictions. In summary all measured properties are in agreement with the predictions of the Brout-Englert-Higgs (BEH) mechanism for electroweak symmetry breaking.