Chinese Physics C > 1996, Vol. 20 > Issue(10): 937-944

Nonperturbative Effect of Nonstrange Baryonic Spectrum

Chen Hong^,,
Zhang Zongye

Department of Physics, Southwest Normal University, Chongqing 6307152 Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039

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Abstract：
We study N and △ spectra by solving Schrodinger equation for the three quark system in the mixture of configurations. Besides the perturbative effect of usual one-gluon exchange, the nonperturbative effects of both color screening predicted by the LGT calculation and pion(sigma) exchange due to the chiral symmery breaking are also included in present quark-quark potential. The agreement of the baryonic spectra obtained with the experiment is improved.

References

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A.DRüjula、H.Georgi,S.L.Glashow,Phys,Rev.,D12（1975）147.[2] O.Morimatsu,M.Takizawa,Nucl.Phys,A554（1993）635.[3] J.Ashman et al,Phys.,Lett,B206（1988）364.[4] M.Shifman,A.Rainshten,V.Zakharov,Nucl.Phys.B147（1979）385;W.Lucha.F.F.Schrobel,D.Gromes,Phys.Rept,200（1991）124.[5] D.I.Chakonov,V.Y.Petrov,M.Prassalowicz,Nucl Phys,B323（1989）53.[6] I.T.Obukhosky,A.M.Kusainov,Phys,Lett.,B238（1990）142;A.M.Kusainov,V.G.Neudatschin,I.T.Obukhosky,Phys.Rev.,C44（1991）2343.[7] Z.Y.Zhang,Y.W.Yu et al,NuclPhys,A561（1993）595.[8] Z.Y.Zhang,A.Faessler et al,Nucl Phys.A578（1994）573;F.Fernandaz,A.Valcarce.J.Phys.,G19（1993）2013.[9] X.H.Liu,J.Math.Phys,31（1990）1620.[10] M.D.Scadron,Phys.Rev.,D26（1982）239.[11] E.M.Henley,GA.Miller,Phys.Lett,B251（1991）453.[12] A.Buchmann,E.Hernandez,K.Yazaki,Phys.Lett,B269（1991）35.[13] Review of Particle Properties,Phys Rev,D50（1 August 1994）Part 1,1673.

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Chen Hong and Zhang Zongye. Nonperturbative Effect of Nonstrange Baryonic Spectrum[J]. Chinese Physics C, 1996, 20(10): 937-944.

Chen Hong and Zhang Zongye. Nonperturbative Effect of Nonstrange Baryonic Spectrum[J]. Chinese Physics C, 1996, 20(10): 937-944. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Nonperturbative Effect of Nonstrange Baryonic Spectrum

Chen Hong^,
Zhang Zongye

Corresponding author:Chen Hong,

Department of Physics, Southwest Normal University, Chongqing 6307152 Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1996-10-05

Abstract:We study N and △ spectra by solving Schrodinger equation for the three quark system in the mixture of configurations. Besides the perturbative effect of usual one-gluon exchange, the nonperturbative effects of both color screening predicted by the LGT calculation and pion(sigma) exchange due to the chiral symmery breaking are also included in present quark-quark potential. The agreement of the baryonic spectra obtained with the experiment is improved.