Speaker
Josef Juran
(Institute of Experimental and Applied Physics, Czech Technical University in Prague)
Description
Facing the plethora of alternative hypotheses for the mechanism of
electroweak symmetry breaking (ESB) it is highly desirable to typify its
phenomenology using the effective Lagrangians. The BESS
(Breaking Electroweak Symmetry Strongly) model effectively describes
a Higgsless ESB mechanism accompanied by a hypothetical strong
triplet of vector resonances. The model couples the vector resonances universally
to all SM fermion generations. We have modified the model by
allowing direct interactions of the vector triplet with the third quark generation
only. This is motivated by the extraordinary mass of the top quark
which is close to the ESB scale. In addition, we have introduced new Lagrangian terms
admitted by the model's symmetries. Our modifications of the BESS model can
significantly relax the low-energy limits on the original BESS model's parameters.
Here, beside formulating our model, we present its basic phenomenology and
compare it to the original BESS model. Our preliminary calculations suggest
the possibility to use some of the LHC processes to detect the new
vector resonances. However, to make a final assessment a more involved and
realistic analysis is needed.
Primary authors
Ivan Melo
(Physics Department, University of Zilina)
Josef Juran
(Institute of Experimental and Applied Physics, Czech Technical University in Prague)
Mikulas Gintner
(Physics Department, University of Zilina)
