Unitarity in $WW \to WW$ elastic scattering without a Higgs boson

Details Unitarity in $WW \to WW$ elastic scattering without a Higgs boson Unitarity in $WW \to WW$ elastic scattering without a Higgs boson

2011-07-07

arxiv.org/abs/1107.1501v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

RevTeX 4, 7 pages, 8 figures;v2: refs and discussion added, typo in eq.(20) corrected

Scientific paper

The amplitude for elastic scattering of longitudinally polarized massive $W$ bosons diverges at tree level, thus violating unitarity, in the absence of any additional particle. This is considered one of the strongest arguments for the existence of the Higgs particle. We show that a triplet of antisymmetric tensor bosons interacting with the gauge bosons via a $B\wedge F$ coupling can also cancel the divergence. No Higgs-like excitation is needed.

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