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Titolo:
Nucleon resonances in omega photoproduction - art. no. 025201
Autore:
Oh, Y; Titov, AI; Lee, TSH;
Indirizzi:
Acad Sinica, Inst Phys, Taipei 11529, Taiwan Acad Sinica Taipei Taiwan 11529 Sinica, Inst Phys, Taipei 11529, Taiwan JINR, Bogoliubov Lab Theoret Phys, RU-141980 Dubna, Russia JINR Dubna Russia RU-141980 ov Lab Theoret Phys, RU-141980 Dubna, Russia Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA Argonne Natl Lab Argonne IL USA 60439 ab, Div Phys, Argonne, IL 60439 USA
Titolo Testata:
PHYSICAL REVIEW C
fascicolo: 2, volume: 6302, anno: 2001,
pagine: 5201 -
SICI:
0556-2813(200102)6302:2<5201:NRIOP->2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
RELATIVIZED QUARK-MODEL; VECTOR-MESON PHOTOPRODUCTION; PI-N SCATTERING; POLARIZATION OBSERVABLES; HYPERFINE INTERACTIONS; ELASTIC-SCATTERING; BARYON RESONANCES; CHROMODYNAMICS; ELECTROPRODUCTION; AMPLITUDES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
51
Recensione:
Indirizzi per estratti:
Indirizzo: Oh, Y Yonsei Univ, Inst Phys & Appl Phys, Seoul 120749, South Korea YonseiUniv Seoul South Korea 120749 ys, Seoul 120749, South Korea
Citazione:
Y. Oh et al., "Nucleon resonances in omega photoproduction - art. no. 025201", PHYS REV C, 6302(2), 2001, pp. 5201

Abstract

The role of the nucleon resonances (N*) in omega photoproduction is investigated by using the resonance parameters predicted by Capstick and Roberts [Phys. Rev. D 46, 2864 (1992): 49, 4570 (1994)]. In contrast with the previous investigations based on the SU(6)xO(3) limit of the constituent quark model, the employed N*-->gammaN and N*-->omegaN amplitudes include the configuration mixing effects due to the residual quark-quark interactions. The contributions from the nucleon resonances are found to be significant relative to the nonresonant amplitudes in changing the differential cross sections at large scattering angles and various spin observables. In particular, we suggest that a crucial test of our predictions can be made by measuring the parity asymmetry and beam-target double asymmetry at forward scattering angles. The dominant contributions are found to be from N3/2(divided by)(1910), a missing resonance, and N3/2(-)(1960) which is identified as the D-13(2080) of the Particle Data Group.

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Documento generato il 15/07/20 alle ore 08:45:59