Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-06-06
Phys.Rev. D72 (2005) 034035
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages, 8 figures
Scientific paper
10.1103/PhysRevD.72.034035
We derive analytic expressions for high energy $2 \to 2$ off-shell scattering amplitudes of weak vector bosons. They are obtained from six fermion final states in processes of the type $e^+ e^- \to \bar\nu_e + (WW) + \nu_e \to \bar\nu_e + (l\nu)(l\nu) + \nu_e$. As an application we reconsider the unitarity bounds on the Higgs mass. Particular attention is given to the role of the photon exchange which has not been considered in earlier investigations; we find that the photon weakens the bound of the Higgs mass.
Bartels Jochen
Schwennsen Florian
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