The electroweak chiral parameters for a heavy Higgs in the Standard Model

Details The electroweak chiral parameters for a heavy Higgs in the Standard Model The electroweak chiral parameters for a heavy Higgs in the Standard Model

1994-08-08

arxiv.org/abs/hep-ph/9408252v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, LaTeX, FTUAM94/12, (Contribution to the 27 International Conference on High Energy Physics, Glasgow, 20-27 July, 1994

Scientific paper

We study the electroweak interactions within the standard electroweak theory in the case where the Higgs particle is heavy, namely, $M_H \leq 1\;TeV$. By integrating out the Higgs boson to one loop we find the complete effective lagrangian, called electroweak chiral lagrangian, that is $SU(2)_L\times U(1)_Y$ invariant and contains the whole set of operators up to dimension four. The values of the chiral parameters representing the non-decoupling effects of the heavy Higgs are presented. Some examples have been chosen to show the applicability of this effective lagrangian approach to compute phenomenologically relevant quantities that either are being meassured at present or will be meassured in future experiments.

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