Study of ΔπN and πNN Couplings

  • The couplings of ΔπN and πNN are calculated by employing the relativistic quark model incorporated with pion meson cloud. Our results indicate the important role of the pion meson cloud on Δ(1232) resonance. Therefore, the pion meson cloud should be considered in the low energy region.
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  • [1] . DONG Y B ,Faessler A ,Shimizu K .Eur.Phys.J.,1999,A6:203;Phys.Rev.,1999,C60:035203;Nucl.Phys.,2000,A671;3792. Theberge S,Thomas A W ,Miller G A .Phys.Rev.,1980,D20:2839;Thmoas A W .Adv.InNucl.Phys.,1984,13:1;Barik N ,Dash B K ,Phys.Rev.,1986,D33:1925;1986,D34:20923. Tegen R ,Brockmann R ,Weise W .Z .Phys.,1982,A307:339 4. Page P R ,Goldman T ,Ginoccio J N .Relativistic Symmetry Suppresses Quark Spin orbit Splitting,hep-ph/0002094 5. Peierls R E ,Yoccoz J. Proc. Phys.Soc.,1957,70:3816. Shimizu K ,Dong Y B ,Faessler A et al.Phys.Rev.,2001;C63:025212 7. Shimizu K .Phys.Lett.,1984,B148:418 8. Sato T ,Lee T SH .Phys.Rev.,1996,C34:2660 9. Gokalp A ,Yilmaz O .J. Phys.,1999,G25:234510. Casoetal(Review of Particle Properties).Eur.Phys.J.,1998,C3:1 11. Theberge S ,Thomas A W .Nucl.Phys.,1983,A393:252
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DONG Yu-Bing. Study of ΔπN and πNN Couplings[J]. Chinese Physics C, 2001, 25(12): 1178-1183.
DONG Yu-Bing. Study of ΔπN and πNN Couplings[J]. Chinese Physics C, 2001, 25(12): 1178-1183. shu
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Received: 2000-12-14
Revised: 1900-01-01
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Study of ΔπN and πNN Couplings

    Corresponding author: DONG Yu-Bing,
  • Institute of High Energy Physics, CAS, Beijing 100039, China

Abstract: The couplings of ΔπN and πNN are calculated by employing the relativistic quark model incorporated with pion meson cloud. Our results indicate the important role of the pion meson cloud on Δ(1232) resonance. Therefore, the pion meson cloud should be considered in the low energy region.

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