An Ultraviolet Chiral Theory of the Top for the Fundamental Composite (Goldstone) Higgs

Preprint number: CP3-Origins-2015-32 DNRF90 and DIAS-2015-32
Authors: Giacomo Cacciapaglia (Univ. of Lyon & CNRS/IN2P3) and Francesco Sannino (CP3-Origins & DIAS)
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We introduce a scalar–less anomaly free chiral gauge theory that serves as natural ultraviolet completion of models of fundamental composite (Goldstone) Higgs dynamics. The new theory is able to generate the top mass and furthermore features a built-in protection mechanism that naturally suppresses the bottom mass. At low energies the theory predicts new fractionally charges fermions, and a number of four-fermion operators that, besides being relevant for the generation of the top mass, also lead to an intriguing phenomenology for the new composite states predicted by the theory.