Dynamical Generation of Elementary Fermion Mass: First Lattice Evidence

Autor: G. C. Rossi, Stefano Capitani, Marco Garofalo, F. Pittler, Bartosz Kostrzewa, Carsten Urbach, Roberto Frezzotti, Petros Dimopoulos
Rok vydání: 2019
Předmět:
High Energy Physics - Theory
High Energy Physics::Lattice
Physics beyond the Standard Model
elementary particle mass generation
non-perturbative mechanism
quantum anomaly
lattice simulations

quantum anomaly
FOS: Physical sciences
General Physics and Astronomy
Elementary particle
non-perturbative mechanism
01 natural sciences
Theoretical physics
High Energy Physics - Lattice
High Energy Physics - Phenomenology (hep-ph)
Lattice (order)
0103 physical sciences
010306 general physics
elementary particle mass generation
lattice simulations
Boson
Condensed Matter::Quantum Gases
Physics
High Energy Physics - Lattice (hep-lat)
High Energy Physics::Phenomenology
Electroweak interaction
Mass generation
Yukawa potential
Fermion
Settore FIS/02 - Fisica Teorica
Modelli e Metodi Matematici

High Energy Physics - Phenomenology
High Energy Physics - Theory (hep-th)
Zdroj: Physical Review Letters
ISSN: 1079-7114
0031-9007
DOI: 10.1103/physrevlett.123.061802
Popis: Using lattice simulations we demonstrate from first principles the existence of a non-perturbative mechanism for elementary particle mass generation in models with gauge fields, fermions and scalars, if an exact invariance forbids power divergent fermion masses and fermionic chiral symmetries broken at UV scale are maximally restored. We show that in the Nambu-Goldstone phase a fermion mass term, unrelated to the Yukawa operator, is dynamically generated. In models with electro-weak interactions weak boson masses are also generated opening new scenarios for beyond the Standard Model physics.
Comment: 24 pages, 17 figures
Databáze: OpenAIRE