THE ELECTROMAGNETIC FORM FACTOR OF THE O<SUP>-</SUP> MESON IN THE STRATON MODEL

WANG MING-ZHONG; ZHENG XI-TE; WANG KE-LIN; KIAN DING-CHANG; ZHANG ZHENG-GANG

Chinese Physics C> 1979, Vol. 3> Issue(5) : 572-581

THE ELECTROMAGNETIC FORM FACTOR OF THE O^- MESON IN THE STRATON MODEL

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Abstract：
In the straton model,the wave functions of the 0^- meson can be obtained numerical-ly from the Wick rotated Bethe-Salpeter equation.The problem of comparing experi-ment with the mesonic electromagnetic form factor calculated by analytical continua-tion of the wave functions from the Euclidean space back to the Minkowski space isan unsolved problem.On the basis of analyzing the analytic property of the formfactor,we proved that by choosing a special reference system in which the photon isspace-like,one may calculate the physical space-like electromagnetic form factor dire-ctly from the Euclidean B-S wave functions of the meson in the Euclidean space.As an example,we calculated the electromagnetic form factor of the pseudoscalarmeson by using the wave functions corresponding various choices of parameters.Pre-liminary results show that the theoretical calculation may be in accordance with experi-ment by appropriately choosing the parameters.

References

[1]	E. B. Dally at al., Phys. Rev. Lett., 39 (1977), 1176. 由该文可追溯到更早的工作.[2] 中国科学院原子能研究所基本粒子理论组，原子能，1966, 6-7, 439.[3] 王明中、郑希特、汪克林、章正刚、冼鼎昌，高能物理与核物理，2 (1977), 109.[4] 冼鼎昌、郑希特、王明中、汪克林、章正刚，物理学报，27(1977), 94.[5] C. L. Hammer, V. S. Zidell, R. W. Reimer and T. A. Weber, Phys. Rev., D15 (1977), 696.

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WANG MING-ZHONG, ZHENG XI-TE, WANG KE-LIN, KIAN DING-CHANG and ZHANG ZHENG-GANG. THE ELECTROMAGNETIC FORM FACTOR OF THE O^- MESON IN THE STRATON MODEL[J]. Chinese Physics C, 1979, 3(5): 572-581.

WANG MING-ZHONG, ZHENG XI-TE, WANG KE-LIN, KIAN DING-CHANG and ZHANG ZHENG-GANG. THE ELECTROMAGNETIC FORM FACTOR OF THE O^- MESON IN THE STRATON MODEL[J]. Chinese Physics C, 1979, 3(5): 572-581. shu

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Received: 1978-07-12
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

THE ELECTROMAGNETIC FORM FACTOR OF THE O^- MESON IN THE STRATON MODEL

Received Date: 1978-07-12
Accepted Date: 1900-01-01
Available Online: 1979-10-05

Abstract: In the straton model,the wave functions of the 0^- meson can be obtained numerical-ly from the Wick rotated Bethe-Salpeter equation.The problem of comparing experi-ment with the mesonic electromagnetic form factor calculated by analytical continua-tion of the wave functions from the Euclidean space back to the Minkowski space isan unsolved problem.On the basis of analyzing the analytic property of the formfactor,we proved that by choosing a special reference system in which the photon isspace-like,one may calculate the physical space-like electromagnetic form factor dire-ctly from the Euclidean B-S wave functions of the meson in the Euclidean space.As an example,we calculated the electromagnetic form factor of the pseudoscalarmeson by using the wave functions corresponding various choices of parameters.Pre-liminary results show that the theoretical calculation may be in accordance with experi-ment by appropriately choosing the parameters.