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Titolo:
Ground and excited scalar isoscalar meson states in a U(3) x U(3) quark model with a glueball
Autore:
Volkov, MK; Yudichev, VL;
Indirizzi:
Joint Nucl Res Inst, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia Joint Nucl Res Inst Dubna Russia 141980 eoret Phys, Dubna 141980, Russia
Titolo Testata:
EUROPEAN PHYSICAL JOURNAL A
fascicolo: 2, volume: 10, anno: 2001,
pagine: 223 - 235
SICI:
1434-6001(200102)10:2<223:GAESIM>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
JONA-LASINIO MODEL; GLUON-CONDENSATE; NAMBU; QCD; BARRIER;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Volkov, MK Joint Nucl Res Inst, Bogoliubov Lab Theoret Phys, Dubna 141980,Russia Joint Nucl Res Inst Dubna Russia 141980 Dubna 141980, Russia
Citazione:
M.K. Volkov e V.L. Yudichev, "Ground and excited scalar isoscalar meson states in a U(3) x U(3) quark model with a glueball", EUR PHY J A, 10(2), 2001, pp. 223-235

Abstract

Ground and first radially excited scalar isoscalar meson states and a scalar glueball are described in a nonlocal U(3) x U(3) quark model. The glueball is introduced into the effective meson Lagrangian by means of the dilaton model on the base of the scale invariance of the meson Lagrangian. The scale invariance breaking by current quark masses and gluon anomalies is taken into account. The glueball anomalies turn out to be important for the description of the glueball-quarkonia mixing. The masses of five scalar isoscalar meson states and their strong decay widths are calculated. The state f(0)(1500) is shown to be composed mostly of the scalar glueball.

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Documento generato il 31/03/20 alle ore 15:54:03