TY  - CONF
A1  - Capitani, Stefano
A1  - De Divitiis, Giulia Maria
A1  - Dimopoulos, Petros
A1  - Frezzotti, Roberto
A1  - Garofalo, Marco
A1  - Knippschild, Bastian
A1  - Kostrzewa, Bartosz
A1  - Pittler, Ferenc
A1  - Rossi, Giancarlo
A1  - Urbach, Carsten
T1  - Testing a non-perturbative mechanism for elementary fermion mass generation: lattice setup
T2  - EPJ Web of Conferences
N2  - n this contribution we lay down a lattice setup that allows for the nonperturbative study of a field theoretical model where a SU(2) fermion doublet, subjected to non-Abelian gauge interactions, is also coupled to a complex scalar field doublet via a Yukawa and an “irrelevant” Wilson-like term. Using naive fermions in quenched approximation and based on the renormalizedWard identities induced by purely fermionic chiral transformations, lattice observables are discussed that enable: a) in theWigner phase, the determinations of the critical Yukawa coupling value where the purely fermionic chiral transformation become a symmetry up to lattice artifacts; b) in the Nambu-Goldstone phase of the resulting critical theory, a stringent test of the actual generation of a fermion mass term of non-perturbative origin. A soft twisted fermion mass term is introduced to circumvent the problem of exceptional configurations, and observables are then calculated in the limit of vanishing twisted mass.
Y1  - 2018
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/49326
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-493267
SN  - 2100-014X
IS  - Article Number 08009
PB  - EDP Sciences
CY  - Les Ulis
ER  -