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Search for a massive resonance decaying into a Higgs boson and a W or Z boson in hadronic final states in proton-proton collisions at ?s=8 TeV

Abstract: A search for a massive resonance decaying into a standard-model-like Higgs boson (H) and a W or Z boson is reported. The analysis is performed on a data sample corresponding to an integrated luminosity of 19.7 fb-1, collected in proton-proton collisions at a centre-of-mass energy of 8TeV with the CMS detector at the LHC. Signal events, in which the decay products of Higgs, W, or Z bosons at high Lorentz boost are contained within single reconstructed jets, are identified using jet substructure techniques, including the tagging of b hadrons. This is the first search for heavy resonances decaying into HW or HZ resulting in an all-jet final state, as well as the first application of jet substructure techniques to identify H? WW*? 4q decays at high Lorentz boost. No significant signal is observed and limits are set at 95% confidence level on the production cross sections of W? and Z? in a model with mass-degenerate charged and neutral spin-1 resonances. Resonance masses are excluded for W0 in the interval [1.0, 1.6]TeV, for Z0 in the intervals [1.0, 1.1] and [1.3, 1.5]TeV, and for mass-degenerate W0 and Z? in the interval [1.0, 1.7]TeV.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Journal of High Energy Physics, Vol. 2016, Num. 2, Art. Num. 145

Editorial: Springer Verlag

 Fecha de publicación: 01/02/2016

Nº de páginas: 42

Tipo de publicación: Artículo de Revista

 DOI: 10.1007/JHEP02(2016)145

ISSN: 1126-6708,1029-8479

Url de la publicación: https://doi.org/10.1007/JHEP02(2016)145