Determination of spin and parity of the Higgs boson in the WW[superscript ∗] → eνμν decay channel with the ATLAS detector
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Aad-2015-Determination of spi.pdf
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2.98 MB
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86d8c934534eda92d819e53cb8df7ada
Author(s)
Taylor, Frank E.
Date Issued
May 2015
Journal
The European Physical Journal C
Publisher
Springer-Verlag
Citation
Aad, G., B. Abbott, J. Abdallah, O. Abdinov, R. Aben, M. Abolins, O. S. AbouZeid, et al. “Determination of Spin and Parity of the Higgs Boson in the WW[superscript ∗] → eνμν Decay Channel with the ATLAS Detector.” The European Physical Journal C 75, no. 5 (May 2015). © 2015 CERN for the benefit of the ATLAS collaboration
Version
Final published version
Abstract
Studies of the spin and parity quantum numbers of the Higgs boson in the WW[superscript ∗] → eνμν final state are presented, based on proton–proton collision data collected by the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb[superscript −1] at a centre-of-mass energy of √s = 8 TeV. The Standard Model spin-parity J[superscript CP] = 0[superscript ++] hypothesis is compared with alternative hypotheses for both spin and CP. The case where the observed resonance is a mixture of the Standard-Model-like Higgs boson and CP-even (J[superscript CP] = 0[superscript ++]) or CP-odd (J[superscript CP] = 0[superscript +−]) Higgs boson in scenarios beyond the Standard Model is also studied. The data are found to be consistent with the Standard Model prediction and limits are placed on alternative spin and CP hypotheses, including CP mixing in different scenarios.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1140/epjc/s10052-015-3436-3
