Electroweak SU(2)(L) x U(1)(Y) model with strong spontaneously fermion-mass-generating gauge dynamics

0541802 - ÚJF 2022 RIV US eng J - Článek v odborném periodiku
Beneš, P. - Hošek, Jiří … celkem 3 autorů
Electroweak SU(2)(L) x U(1)(Y) model with strong spontaneously fermion-mass-generating gauge dynamics.
Journal of High Energy Physics. Roč. 2021, č. 3 (2021), č. článku 224. ISSN 1029-8479. E-ISSN 1029-8479
Grant CEP: GA MŠMT(CZ) LG15052
Institucionální podpora: RVO:61389005
Klíčová slova: Gauge Symmetry * Nonperturbative Effects * Spontaneous Symmetry Breaking
Obor OECD: Particles and field physics
Impakt faktor: 6.376, rok: 2021
Způsob publikování: Open access
https://doi.org/10.1007/JHEP03(2021)224

Higgs sector of the Standard model (SM) is replaced by quantum flavor dynamics (QFD), the gauged flavor SU(3)(f) symmetry with scale Lambda. Anomaly freedom requires addition of three nu (R). The approximate QFD Schwinger-Dyson equation for the Euclidean infrared fermion self-energies Sigma (f)(p(2)) has the spontaneous-chiral-symmetry-breaking solutions ideal for seesaw: (1) Sigma (f)(p(2)) = MfR2/p where three Majorana masses M-fR of nu (fR) are of order Lambda. (2) Sigma (f)(p(2)) = mf2/p where three Dirac masses m(f) = m((0))1 + m((3))lambda (3) + m((8))lambda (8) of SM fermions are exponentially suppressed w.r.t. Lambda, and degenerate for all SM fermions in f. (1) M-fR break SU(3)(f) symmetry completely, m((3)), m((8)) superimpose the tiny breaking to U(1) x U(1). All flavor gluons thus acquire self-consistently the masses similar to Lambda. (2) All m(f) break the electroweak SU(2)(L) x U(1)(Y) to U(1)(em). Symmetry partners of the composite Nambu-Goldstone bosons are the genuine Higgs particles: (1) three nu (R)-composed Higgses chi (i) with masses similar to Lambda. (2) Two new SM-fermion-composed Higgses h(3), h(8) with masses similar to m((3)), m((8)), respectively. (3) The SM-like SM-fermion-composed Higgs h with mass similar to m((0)), the effective Fermi scale. Sigma (f)(p(2))-dependent vertices in the electroweak Ward-Takahashi identities imply: the axial-vector ones give rise to the W and Z masses at Fermi scale. The polar-vector ones give rise to the fermion mass splitting in f. At the present exploratory stage the splitting comes out unrealistic.
Trvalý link: http://hdl.handle.net/11104/0319332