Počet záznamů: 1
Dynamical symmetry breaking in models with strong Yukawa interactions
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SYSNO ASEP 0384956 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Dynamical symmetry breaking in models with strong Yukawa interactions Tvůrce(i) Beneš, Petr (UJF-V) Celkový počet autorů 1 Zdroj.dok. Acta Physica Slovaca - ISSN 0323-0465
Roč. 62, 1-2 (2012), s. 1-274Poč.str. 274 s. Jazyk dok. eng - angličtina Země vyd. SK - Slovensko Klíč. slova spontaneus symmetry breaking ; Gauge symmetries ; nonperturbative techniques ; radiative symmetry breaking ; Quark and lepton masses ; Cabibbo-Kobayashi-Maskawa matrix elements ; extensions of electroweak Higgs sector Vědní obor RIV BE - Teoretická fyzika CEP GA202/06/0734 GA ČR - Grantová agentura ČR LA08015 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UJF-V - RVO:61389005 UT WOS 000306958200001 DOI https://doi.org/10.2478/v10155-012-0001-2 Anotace The primary aim of this paper is to explore the possibility of spontaneous symmetry breaking by strong Yukawa dynamics. Technically, the symmetry is assumed to be broken by formation of symmetry-breaking parts of both the scalar and the fermion propagators, rather than by the scalar vacuum expectation values. The idea is first introduced on an example of a toy model with the underlying symmetry being an Abelian one and later applied to a realistic model of electroweak interaction. In addition, the paper also deals with some more general, model-independent issues, applicable not only to the discussed model of strong Yukawa dynamics, but to a wider class of models with dynamical mass generation. First of these issues is the problem of fermion flavor mixing in the presence of fermion self-energies with a general momentum dependence. It is in particular shown how to define the Cabibbo-Kobayashi-Maskawa matrix in such models and argued that it can come out in principle non-unitary. Second issue is the problem of calculating the gauge boson masses when the symmetry is broken by fermion self-energies. On top of deriving the formula for the gauge boson mass matrix we also find corrections to the related Pagels-Stokar formula. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2013
Počet záznamů: 1