Ponente
Sr.
Michael Geller
(Technion, Israel)
Descripción
We investigate a Randall-Sundrum model with an SU(2) doublet propagating in the bulk. Upon calculating its gravitational effect we find that a stabilized radius can be generated without the use of an additional scalar, as needed for example in the Goldberger-Wise (GW) mechanism, and with no additional fine-tuning other than the inescapable one due to the cosmological constant; similar tuning is also present in the GW mechanism. The lowest scalar excitation in this scenario, the counterpart of the radion of the GW mechanism, has both radion-like and Higgs-like couplings to the SM fields. It, thus, plays a dual role and we, therefore, denote it as the "Higgs-radion" (hr). As opposed to the GW radion case, our Higgs-radion is found to be compatible with the 126 GeV scalar recently discovered at the LHC, at the level of 1σ, with a resulting 95% CL bound on the KK-gluon mass of: 4.48 TeV
Autor primario
Sr.
Michael Geller
(Technion, Israel)
Coautores
Dr.
Amarjit Soni
(Brookhaven National Laboratory)
Dr.
Shaouly Bar-Shalom
(Technion, Israel)
