A search for a massive resonance W'decaying into a W and a Higgs boson in the l nu b (b) over bar (l = e, mu) final state is presented. Results are based on data corresponding to an integrated luminosity of 19.7 fb(-1) of proton-proton collisions at root s = 8 TeV, collected using the CMS detector at the LHC. For a high-mass (greater than or similar to 1 TeV) resonance, the two bottom quarks coming from the Higgs boson decay are reconstructed as a single jet, which can be tagged by placing requirements on its substructure and flavour. Exclusion limits at 95 % confidence level are set on the production cross section of a narrow resonance decaying into WH, as a function of its mass. In the context of a little Higgs model, a lower limit on the W' mass of 1.4 TeV is set. In a heavy vector triplet model that mimics the properties of composite Higgs models, a lower limit on the W' mass of 1.5 TeV is set. In the context of this model, the results are combined with related searches to obtain a lower limit on the W' mass of 1.8 TeV, the most restrictive to date for decays to a pair of standard model bosons.

Search for massive WH resonances decaying into the l nu b(b)over-bar final state at root s=8 TeV / Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Asilar, E., Bergauer, T., Brandstetter, J., Brondolin, E., Dragicevic, M., Eroe, J., Flechl, M., Friedl, M., Fruehwirth, R., Ghete, V.M., Hartl, C., Hoermann, N., Hrubec, J., Jeitler, M., Knuenz, V., Koenig, A., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 76:5(2016). [10.1140/epjc/s10052-016-4067-z]

Search for massive WH resonances decaying into the l nu b(b)over-bar final state at root s=8 TeV

MARZOCCHI, BADDER;BARONE, Luciano Maria;D'IMPERIO, GIULIA;DEL RE, Daniele;GELLI, SIMONE;LONGO, Egidio;MARGAROLI, Fabrizio;ORGANTINI, Giovanni;PARAMATTI, Riccardo;PREIATO, FEDERICO;RAHATLOU, SHAHRAM;SANTANASTASIO, FRANCESCO;
2016

Abstract

A search for a massive resonance W'decaying into a W and a Higgs boson in the l nu b (b) over bar (l = e, mu) final state is presented. Results are based on data corresponding to an integrated luminosity of 19.7 fb(-1) of proton-proton collisions at root s = 8 TeV, collected using the CMS detector at the LHC. For a high-mass (greater than or similar to 1 TeV) resonance, the two bottom quarks coming from the Higgs boson decay are reconstructed as a single jet, which can be tagged by placing requirements on its substructure and flavour. Exclusion limits at 95 % confidence level are set on the production cross section of a narrow resonance decaying into WH, as a function of its mass. In the context of a little Higgs model, a lower limit on the W' mass of 1.4 TeV is set. In a heavy vector triplet model that mimics the properties of composite Higgs models, a lower limit on the W' mass of 1.5 TeV is set. In the context of this model, the results are combined with related searches to obtain a lower limit on the W' mass of 1.8 TeV, the most restrictive to date for decays to a pair of standard model bosons.
2016
PROTON-PROTON COLLISIONS; ATLAS DETECTOR; CROSS-SECTION; PP COLLISIONS; HIGGS-BOSON; LHC; WZ
01 Pubblicazione su rivista::01a Articolo in rivista
Search for massive WH resonances decaying into the l nu b(b)over-bar final state at root s=8 TeV / Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Asilar, E., Bergauer, T., Brandstetter, J., Brondolin, E., Dragicevic, M., Eroe, J., Flechl, M., Friedl, M., Fruehwirth, R., Ghete, V.M., Hartl, C., Hoermann, N., Hrubec, J., Jeitler, M., Knuenz, V., Koenig, A., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 76:5(2016). [10.1140/epjc/s10052-016-4067-z]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/897460
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