18-24 June 2017
Palacio de Congresos
Europe/Madrid timezone
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Contribution Parallel

Seminarios 6+7
Physics Beyond the Standard Model

Testing a non-perturbative mechanism for elementary fermion mass generation: numerical results

Speakers

  • Petros DIMOPOULOS

Primary authors

  • Petros DIMOPOULOS (Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi c/o Dipartimento di Fisica, Università di Roma “Tor Vergata”)

Co-authors

  • Dr. Srefano CAPITANI (Goethe-Universität Frankfurt am Main - Institut für Theoretische Physik)
  • Dr. Giulia Maria DE DIVITIIS (Dipartimento di Fisica, Università di Roma “Tor Vergata” and INFN, Sezione di Roma 2, Rome, Italy)
  • Prof. Roberto FREZZOTTI (Dipartimento di Fisica, Università di Roma “Tor Vergata” and INFN, Sezione di Roma 2, Rome. Italy)
  • Mr. Marco GAROFALO (University of Edinburgh)
  • Dr. Bastian KNIPPSCHILD (Institut für Strahlen-und Kernphysik (Theorie) Bethe Center for Theoretical Physics, Universität Bonn Germany)
  • Dr. Bartosz KOSTRZEWA (Institut für Strahlen-und Kernphysik (Theorie) Bethe Center for Theoretical Physics, Universität Bonn Germany)
  • Dr. Ferenc PITTLER (Institut für Strahlen-und Kernphysik (Theorie) Bethe Center for Theoretical Physics, Universität Bonn Germany)
  • Prof. Giancarlo ROSSI (Dipartimento di Fisica, Università di Roma “Tor Vergata”and INFN, Sezione di Roma 2 & Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi)
  • Prof. Carsten URBACH (Institut für Strahlen-und Kernphysik (Theorie) Bethe Center for Theoretical Physics, Universität Bonn Germany)

Content

Based on a recent proposal according to which elementary particle masses could be generated by a non-perturbative dynamical phenomenon, alternative to the Higgs mechanism, we carry out lattice simulations of a model where a non-abelian strongly interacting fermion doublet is also coupled to a doublet of complex scalar fields via a Yukawa and an “irrelevant” Wilson-like term. In this pioneering study we use naive fermions and work in the quenched approximation. We present preliminary numerical results both in the Wigner and in the Nambu-Goldstone phase, focusing on the observables relevant to check the occurrence of the conjectured dynamical fermion mass generation effect in the continuum limit of the critical theory in its spontaneously broken phase.

Preferred track (if multiple tracks have been selected)

Physics Beyond the Standard Model