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Search for narrow high-mass resonances in proton-proton collisions at sqrt(s) = 8 TeV decaying to Z and Higgs bosons

Abstract : The first search for a narrow, high-mass resonance decaying into Z and Higgs (H) bosons is presented. The final state studied consists of a merged jet pair and a tau pair resulting from the decays of Z and H bosons, respectively. The analysis is based on a data sample of proton-proton collisions at a center-of-mass energy of 8 TeV, collected with the CMS experiment in 2012, and corresponding to an integrated luminosity of 19.7 inverse femtobarns. In the resonance mass range of interest, the Z and H bosons are produced with large momenta, which implies that the final products of the two quarks or the two tau leptons must be detected within a small angular interval. From a combination of all possible decay modes of the tau leptons, production cross sections in a range between 0.9 and 27.8 fb are excluded at 95% confidence level, depending on the resonance mass.
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http://hal.in2p3.fr/in2p3-01123804
Contributor : Dominique Girod <>
Submitted on : Thursday, March 5, 2015 - 2:54:09 PM
Last modification on : Friday, June 5, 2020 - 10:52:07 AM

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V. Khachatryan, M. Besançon, F. Couderc, M. Dejardin, D. Denegri, et al.. Search for narrow high-mass resonances in proton-proton collisions at sqrt(s) = 8 TeV decaying to Z and Higgs bosons. Physics Letters B, Elsevier, 2015, 748, pp.255-277. ⟨10.1016/j.physletb.2015.07.011⟩. ⟨in2p3-01123804⟩

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