The masses of the light hadrons are calculated in terms. of the cloudy bag model with use of pion-energies due to both gluon and pion exchange. By use of a type of pion-guark interaction which incorporates the finite extent of the pion the convergent self-energy due to pion exchange is obtained. The difficulties in the bag models which only include one type of the self-energies can be removed by. taking account of both and the baryon spectrum is reproduced well. It is found that these self-energies are large but have opposite effect on the masses of the hadrons.
Abstract
The masses of the light hadrons are calculated in terms. of the cloudy bag model with use of pion-energies due to both gluon and pion exchange. By use of a type of pion-guark interaction which incorporates the finite extent of the pion the convergent self-energy due to pion exchange is obtained. The difficulties in the bag models which only include one type of the self-energies can be removed by. taking account of both and the baryon spectrum is reproduced well. It is found that these self-energies are large but have opposite effect on the masses of the hadrons.
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] T. deGrand et al., Phys. Rev. D12(1975)2050.
[2] F. Myhrer, G.E. Bmwn and Z. Xu, Nucl. Phys. A362(1981)317.
[3] S.A. Chin, A.K. Kerman and X.H. YANG, MIT-CTP-Preprint 919(1981); T. H. Hansson and R.L. Jaffe, MIT-CTP-Preprint 1026(1982); S.A. Chin, Nucl . Phys. A382(1982)355.
[4] X.H. YANG, Presented at Conference on Particle Physics, Hangzhou, China(1982); X.H. YANG
and A.K. Kerman, Commun. in Theor. Phys. 3(1984)231.
[5] K. Saito, Tokyo Univ., Preprint INS-Rep.-481(Oct., 1983).
[6] S.J. Brodsky and G.P. Lepage, Stanford Univ. reprint SLAC-PUB-2606(1980).
[7] J.D. Breit, Columbia Univ. report CU-TP-229(1982).
[8] J. Backe et al., Z. Phys. C17(1983)161; J. Backe et al., CERN preprint TH. 3509-CERN and TH. 3509-CERN/E.
[9] S. Goldhaber, T.H. Hansson and R.L. Jaffe, MIT-CTP-Preprint 1089(1983).
[10] G.A. Crawford and G. Miller, CERN reprint TH. 3645-CERN(1983).
[11] E.L. Lomon, invited talk at the Third Annual Indiana Nuclear Physlcs Norkshop, Bloomington, U.S.A., MIT-CTP preprint 1130(1983).
[12] X.H. YANG and Y.S. ZHONG, Commun. in Theor. Phys. 3(1984)297.
{{custom_fnGroup.title_cn}}
脚注
{{custom_fn.content}}
PDF(247 KB)
