Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8187526 | Physics Letters B | 2013 | 8 Pages |
Abstract
We investigate the prospects of determining the CP nature of the 126 GeV neutral spin-0 (Higgs) boson h, discovered at the LHC, at a future linear e+eâ collider (ILC). We consider the production of h by the Higgsstrahlung process e+eââZ+h and its subsequent decays to Ï leptons, hâÏâÏ+. We investigate how precisely a possible pseudoscalar component of h can be detected by the measurement of a suitably defined angular distribution, if all major decay modes of the Ï lepton are used. From our numerical simulations, we estimate the expected precision to the scalar-pseudoscalar mixing angle Ï, including estimates of the background and of measurement uncertainties, to be ÎÏâ2.8° for Higgs-boson production at a center-of-mass energy of 250 GeV and for a collider with integrated luminosity of 1 abâ1.
Keywords
Related Topics
Physical Sciences and Engineering
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Nuclear and High Energy Physics
Authors
Stefan Berge, Werner Bernreuther, Hubert Spiesberger,