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Search for Narrow High-Mass Resonances in Proton–Proton Collisions at √s = 8 TeV Decaying to a Z and a Higgs Boson

CMS Collaboration, Vardan Khachatryan, Felix Bachmair, Lukas Bäni, Lorenzo Bianchini, Marco-Andrea Buchmann, Bruno Casal, Nicolas Chanon, Günther Dissertori, Michael Dittmar, Mauro Donegà, Marc Dünser (+29 others)
2015

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A 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 τ 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-ofmass energy of 8 TeV, collected with the CMS experiment in 2012, and corresponding to an integrated luminosity of 19.7 fb −1 . In the resonance mass range of interest, which extends from 0.8 to 2.5
more » ... eV, the Z and H bosons are produced with large momenta, which implies that the final products of the two quarks or the two τ leptons must be detected within a small angular interval. From a combination of all possible decay modes of the τ 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.
doi:10.3929/ethz-b-000105314 fatcat:s3ccvt4fvvbj7d55ofocu6wo3u
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CMS Collaboration, Vardan Khachatryan, Felix Bachmair, Lukas Bäni, Lorenzo Bianchini, Marco-Andrea Buchmann, Bruno Casal, Nicolas Chanon, Günther Dissertori, Michael Dittmar, Mauro Donegà, Marc Dünser, Philipp Eller, Christoph Grab, Dmitry Hits, Jan Hoss, Gregor Kasieczka, Werner Lustermann, Boris Mangano, Andrea C. Marini, Matthieu Marionneau, Pablo Martinez Ruiz Del Arbol, Mario Masciovecchio, Daniel Meister, Niklas Mohr, Pasquale Musella, Christoph Nägeli, Francesca Nessi-Tedaldi, Francesco Pandolfi, Felicitas Pauss, Luca Perrozzi, Marco Peruzzi, Milena Quittnat, Liis Rebane, Marco Rossini, Andrey Starodumov, Maiko Takahashi, Konstantinos Theofilatos, Rainer Wallny, Hannsjörg A. Weber, Et Al.. "Search for Narrow High-Mass Resonances in Proton–Proton Collisions at √s = 8 TeV Decaying to a Z and a Higgs Boson." (2015)