Factorization Method in the Spontaneously Broken Gauge Theories

Details Factorization Method in the Spontaneously Broken Gauge Theories Factorization Method in the Spontaneously Broken Gauge Theories

1995-08-30

arxiv.org/abs/hep-ph/9508400v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX file and 5 PS figures. PS file with figures available at http://venus.itep.ru/preprints/1995/95041.ps.gz

Scientific paper

We consider the factorization method in the spontaneously broken gauge theories such as the electroweak theory. Using the of\/f-shell $W$-boson density matrix formalism we demonstrate that the factorization conditions are completely under control. The main point of this paper is the presence of the "interference" or "crossed" terms in $WW$--scattering process which exhibits itself in the dependence on the relative azimuthal angle between two scattering planes. To illustrate our general consideration we use well-known example --- a single Higgs boson production. The origine of the quantitative failure of the $WW$--ef\/fective method, as originally propossed, is given and it is shown how to use it correctly.

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