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.

(2016). 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 (Formula presented) = 8 TeV [journal article - articolo]. In JOURNAL OF HIGH ENERGY PHYSICS. Retrieved from http://hdl.handle.net/10446/143454

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 (Formula presented) = 8 TeV

Re V.;Vai I.;
2016-01-01

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.
articolo
3-feb-2016
2016
Inglese
online
2016
2 (art. 145)
1
41
esperti anonimi
Settore FIS/01 - Fisica Sperimentale
Beyond standard model; Hadron-hadron scattering; Higgs physics; Particle and resonance production
Pubblicato first online in data 22/02/2016 indice consultabile alla pagina https://link.springer.com/journal/13130/2016/2
Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Dragicevic, M.; Ero, J.; Flechl, M.; Friedl, M.;...espandi
info:eu-repo/semantics/article
open
(2016). 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 (Formula presented) = 8 TeV [journal article - articolo]. In JOURNAL OF HIGH ENERGY PHYSICS. Retrieved from http://hdl.handle.net/10446/143454
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10446/143454
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