17-24 July 2013
KTH and Stockholm University Campus
Europe/Stockholm timezone

Dynamical origin for the 125 GeV Higgs

18 Jul 2013, 16:30
12m
F1 (KTH Campus)

F1

KTH Campus

Talk presentation Higgs and New Physics Higgs and New Physics

Speaker

Shaouly Bar-Shalom (Technion, Israel)

Description

I will describe a hybrid framework for electroweak symmetry breaking (EWSB), in which the Higgs mechanism is combined with a Nambu-Jona-Lasinio mechanism. The model introduces an unconstrained (i.e., acts as "fundamental" but not the SM field) scalar and a strongly coupled doublet of heavy quarks with a mass around 500 GeV, which forms a condensate at a compositeness scale \Lambda ~ O(1 TeV). This setup is matched at that scale to a tightly constrained hybrid two Higgs doublet model, where both the composite and unconstrained scalars participate in EWSB. This allows us to get a good candidate for the recently observed 125 GeV scalar which has properties very similar to the Standard Model Higgs. The heavier (mostly composite) CP-even scalar has a mass around 500 GeV, while the pseudoscalar and the charged Higgs particles have masses in the range 200 -300 GeV.

Primary author

Shaouly Bar-Shalom (Technion, Israel)

Co-authors

Dr Amarjit Soni (Brookhaven National Laboratory, USA) Mr Michael Geller (Technion, Israel)

Presentation Materials