Catalogo Articoli (Spogli Riviste)
OPAC HELP
Titolo: Phase transition couplings in U(1) and SU(N) regularized gauge theories
Autore: Laperashvili, LV; Ryzhikh, DA; Nielsen, HB;
 Indirizzi:
 Inst Theoret & Expt Phys, Moscow 117218, Russia Inst Theoret & Expt Phys Moscow Russia 117218 hys, Moscow 117218, Russia Niels Bohr Inst, DK2100 Copenhagen O, Denmark Niels Bohr Inst Copenhagen Denmark O Inst, DK2100 Copenhagen O, Denmark
 Titolo Testata:
 INTERNATIONAL JOURNAL OF MODERN PHYSICS A
fascicolo: 24,
volume: 16,
anno: 2001,
pagine: 3989  4009
 SICI:
 0217751X(20010930)16:24<3989:PTCIUA>2.0.ZU;2X
 Fonte:
 ISI
 Lingua:
 ENG
 Soggetto:
 ANTIGRANDUNIFICATION; RENORMALIZATIONGROUP EQUATIONS; MULTIPLE POINT CRITICALITY; QUANTUMFIELD THEORY; STANDARD MODEL; FERMION MASSES; QUARK CONFINEMENT; MONTECARLO; CONSTANT; QCD;
 Keywords:
 gauge theory; lattice; renormalization; phase transition; monopoles; loops;
 Tipo documento:
 Article
 Natura:
 Periodico
 Settore Disciplinare:
 Physical, Chemical & Earth Sciences
 Citazioni:
 66
 Recensione:
 Indirizzi per estratti:
 Indirizzo: Laperashvili, LV Inst Theoret & Expt Phys, B Cheremushkinskaya 25, Moscow 117218, Russia Inst Theoret & Expt Phys B Cheremushkinskaya 25 Moscow Russia 117218



 Citazione:
 L.V. Laperashvili et al., "Phase transition couplings in U(1) and SU(N) regularized gauge theories", INT J MOD P, 16(24), 2001, pp. 39894009
Abstract
Using a twoloop approximation for beta functions, we have considered the corresponding renormalization group improved effective potential in the dual Abelian Higgs model (DAHM) of scalar monopoles and calculated the phase transition (critical) couplings in U(1) and SU(N) regularized gauge theories. In contrast to our previous result alpha (crit) approximate to 0.17, obtained in the oneloop approximation with the DAHM effective potential (see Ref. 20), the critical value of the electric fine structure constant in the twoloop approximation, calculated in the present paper, is equal to alpha (crit) approximate to 0.208 and coincides with the lattice result for compact QED(10): alpha (lat)(crit) approximate to 0.20 +/ 0.015. Following the 't Hooft's idea of the "Abelization" of monopole vacuum in the YangMills theories, we have obtained an estimation of the SU(N) triple point coupling constants, which is alpha (1)(N,Crit) = N/2 rootN+1/N1 alpha (1)(U(1),crit). This relation was used for the description of the Planck scale values of the inverse running constants alpha (1)(i)(mu) (i = 1, 2, 3 correspond to U(1), SU(2) and SU(3) groups), according to the ideas of the multiple point model.(16)
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 19:02:09