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Particle and Astro-Particle Physics Seminars
Investigating technicolor models with lattice simulations
by
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Europe/Zurich
TH Theory Conference Room (CERN)
TH Theory Conference Room
CERN
Description
Technicolor is a possible mechanism for electroweak symmetry breaking (EWSB), alternative to the Higgs boson: EWSB is induced by dynamical chiral symmetry breaking of a strongly-interacting theory. The original idea of a rescaled version of QCD is tightly constrained by the electroweak precision measurement. However theories that behave quite differently from QCD can comply better with those constraints.
I will consider gauge theories minimally coupled to fermions. By varying the number of colors, the number of flavors, and the representation of the fermions under the gauge group, one can obtain a variety of theories with very different properties. The dynamics of those theories is poorly understood, because of their strongly-coupled nature. Lattice simulations represent an important tool for exploring them.
I will briefly discuss the phenomenological motivations, then I will describe the relevant observables that can be computed on the lattice. My focus will be on strategies more than results.
I will consider gauge theories minimally coupled to fermions. By varying the number of colors, the number of flavors, and the representation of the fermions under the gauge group, one can obtain a variety of theories with very different properties. The dynamics of those theories is poorly understood, because of their strongly-coupled nature. Lattice simulations represent an important tool for exploring them.
I will briefly discuss the phenomenological motivations, then I will describe the relevant observables that can be computed on the lattice. My focus will be on strategies more than results.