πN SCATTERING PHASE SHIFTS IN A MODIFIED SKYRME MODEL

SHEN Qi-Xing; LI Bing-An

Chinese Physics C> 1989, Vol. 13> Issue(2) : 128-134

πN SCATTERING PHASE SHIFTS IN A MODIFIED SKYRME MODEL

SHEN Qi-Xing ^, ,
LI Bing-An

Institute of High Energy Physics,Academia Sinica,Beijing

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Abstract：
The P-wave phase shift of πN scattering and the mass and width of the Roper resonance are computed in a modified Skyrme model.The results are better than those calculated from the original Skyrme model.

References

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T. H. R. Skyrme, Proc. Roy. Soc, A260(1961), 127: A262(1961) , 237.[2] G. S. Adkins, C. R. Nappi and E. Witten, Nucl. Phys., B228(1983): 552; G. S. Adkins and C. R. Nappl,Nucl. Phys., B233(1984), 109.[3] Bing An Li and Qi Xing Shen, Commun. in Theor. Phys., 6(1986),65.[4] C. Hajduk and B. Schwesinger, Phys. Lett., B140(1984 ) , 172; J. D. Breit and C. R. Nappi, Phys. Rev.Lett., 53 (1984), 889; A. Hayashi, G. Eckart, G. Holzwarth and H. Walliser, Phys. Lett, 147B(1984), 5.[5] J . F. Donognue, E. Golowich and B. R. Holstein, Phys. Rev. Lett 53(1984): 747.[6] A. Jackson, A. D. Jackson, A. S. Goldhaber, G. E. Brown and L. C. Castillejo, Phys. Lett., 154B(1985),101.[7] U. B. aulfuss and U.-G. Meissner, Phys. Lett., 154B(1965),193; M. Lacornbe, B. Loiseau, R. Vinh Mau and W. N. Cottingharm, Phys. Lett., 169B(1986), 121.[8] 李炳安，高能物理与核物理,3(1987),426.

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SHEN Qi-Xing and LI Bing-An. πN SCATTERING PHASE SHIFTS IN A MODIFIED SKYRME MODEL[J]. Chinese Physics C, 1989, 13(2): 128-134.

SHEN Qi-Xing and LI Bing-An. πN SCATTERING PHASE SHIFTS IN A MODIFIED SKYRME MODEL[J]. Chinese Physics C, 1989, 13(2): 128-134. 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

πN SCATTERING PHASE SHIFTS IN A MODIFIED SKYRME MODEL

SHEN Qi-Xing ^,
LI Bing-An

Corresponding author: SHEN Qi-Xing,

Institute of High Energy Physics,Academia Sinica,Beijing

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1989-02-05

Abstract: The P-wave phase shift of πN scattering and the mass and width of the Roper resonance are computed in a modified Skyrme model.The results are better than those calculated from the original Skyrme model.