Theory Seminar

DATE: 2014-02-25 11:00 - 12:00
PLACE: Kenkyu Honkan 1F meeting room 1
TITLE: Strongly coupled gauge theories in and out of the conformal window
CONTACT: Tetsutaro Higaki,thigaki-AT-post.kek.jp
SPEAKER: Prof. Anna Hasenfratz  ((University of Colorado Boulder, United States) )
LANGUAGE: English
ABSTRACT: Asymptotically free gauge systems with many fermionic degrees of freedom can develop a conformal infrared fixed point. Near the conformal window these strongly coupled systems can have unusual properties, and might contain a light scalar, a composite candidate for the Higgs boson. Lattice studies are particularly suited to study these strongly coupled models, though methods developed for QCD studies are not always effective. In this talk I will give a brief overview of our understanding of these systems. I will concentrate on two rather different methods, the Dirac operator spectral density, and a variant of finite size scaling, to illustrate the unusual properties of these intriguing systems.

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