Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-10-04
Phys.Lett.B553:61-71,2003
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 pages, 2 postscript figures
Scientific paper
10.1016/S0370-2693(02)03191-X
Higgs decays to Z boson pairs may be exploited to determine spin and parity of the Higgs boson, a method complementary to spin-parity measurements in Higgs-strahlung. For a Higgs mass above the on-shell ZZ decay threshold, a model-independent analysis can be performed, but only by making use of additional angular correlation effects in gluon-gluon fusion at the LHC and gamma-gamma fusion at linear colliders. In the intermediate mass range, in which the Higgs boson decays into pairs of real and virtual Z bosons, threshold effects and angular correlations, parallel to Higgs-strahlung, may be adopted to determine spin and parity, though high event rates will be required for the analysis in practice.
Choi Yong-Sang
Miller Daniel J.
Muhlleitner Margarete M.
Zerwas Peter M.
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