Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-09-23
Z.Phys. C76 (1997) 333-341
Physics
High Energy Physics
High Energy Physics - Phenomenology
19 pages, revised version including dynamical scenarios. e-mail: renard@lpmsun2.lpm.univ-montp2.fr
Scientific paper
We list all possible dim=6 CP conserving and SU(3)* SU(2)*U(1) gauge invariant interactions, which could be generated in case no new particles would be reachable in the future Colliders, and the only observable New Physics would be in the form of new interactions affecting the scalar sector and the quarks of the third family. These interactions are described by operators involving the standard model scalar field, the quarks of the third family and the gauge bosons. Subsequently, we identify those operators which do not contribute to LEP1 (and lower energy) observables at tree level and are not purely gluonic. Since present measurements do not strongly constrain the couplings of these operators, we derive here the unitarity bounds on them. Finally, in order to get a feeling on the possible physical meaning of the appearance of any of these operators, we identify the operators generated in a class of renormalizable dynamical models which at the TeV scale, are fully described by the SU(3)*SU(2)*U(1) gauge group.
Gounaris G. J.
Papadamou D. T.
Renard Fernand M.
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