Search for a Charged Higgs Boson Produced in the Vector-boson Fusion Mode with Decay H± → W± Z using pp Collisions at √s = 8 TeV with the ATLAS Experiment

Aad, G. and Abbott, B. and Abdallah, J. and Abdinov, O. and Aben, R. and Krasznahorkay, Attila and Nagai, Yoshikazu and Pásztor, Gabriella and Tóth, József (2015) Search for a Charged Higgs Boson Produced in the Vector-boson Fusion Mode with Decay H± → W± Z using pp Collisions at √s = 8 TeV with the ATLAS Experiment. PHYSICAL REVIEW LETTERS, 114 (23). ISSN 0031-9007

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Abstract

A search for a charged Higgs boson, H±, decaying to a W± boson and a Z boson is presen- ted. The search is based on 20.3 fb−1 of proton-proton collision data at a center-of-mass energy of 8 TeV recorded with the ATLAS detector at the LHC. The H± boson is assumed to be produced via vector-boson fusion and the decays W± → q ¯q′ and Z → e+e−/μ+μ− are considered. The search is performed in a range of charged Higgs boson masses from 200 to 1000 GeV. No evidence for the production of an H± boson is observed. Upper limits of 31–1020 fb at 95% CL are placed on the cross section for vector-boson fusion production of an H± boson times its branching fraction to W±Z. The limits are compared with predictions from the Georgi-Machacek Higgs Triplet Model.

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