Search for direct pair production of a chargino and a neutralino decaying to the 125 GeV Higgs boson in √s=8 TeV pp collisions with the ATLAS detector

Allison, Lee and Barton, Adam and Beattie, Michael and Borissov, Guennadi and Bouhova-Thacker, Eva and Chilingarov, Alexandre and Dearnaley, William and Fox, Harald and Grimm, Kathryn and Henderson, Robert and Hughes, Gareth and Jones, Roger William Lewis and Kartvelishvili, Vakhtang and Long, Robin and Love, Peter and Maddocks, Harvey and Smizanska, Maria and Walder, James (2015) Search for direct pair production of a chargino and a neutralino decaying to the 125 GeV Higgs boson in √s=8 TeV pp collisions with the ATLAS detector. European Physical Journal C: Particles and Fields, 75 (5). ISSN 1434-6044

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Abstract

A search is presented for the direct pair production of a chargino and a neutralino pp→χ ~ ± 1 χ ~ 0 2 , where the chargino decays to the lightest neutralino and the W boson, χ ~ ± 1 →χ ~ 0 1 (W ± →ℓ ± ν) , while the neutralino decays to the lightest neutralino and the 125 GeV Higgs boson, χ ~ 0 2 →χ ~ 0 1 (h→bb/γγ/ℓ ± νqq) . The final states considered for the search have large missing transverse momentum, an isolated electron or muon, and one of the following: either two jets identified as originating from bottom quarks, or two photons, or a second electron or muon with the same electric charge. The analysis is based on 20.3 fb −1 of s √ =8 TeV proton–proton collision data delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with the Standard Model expectations, and limits are set in the context of a simplified supersymmetric model.

Item Type: Journal Article
Journal or Publication Title: European Physical Journal C: Particles and Fields
Additional Information: © CERN for the benefit of the ATLAS collaboration 2015. This article is published with open access at Springerlink.com
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/2200/2201
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 75465
Deposited By: ep_importer_pure
Deposited On: 09 Sep 2015 06:34
Refereed?: Yes
Published?: Published
Last Modified: 21 Feb 2020 02:38
URI: https://eprints.lancs.ac.uk/id/eprint/75465

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