Measurement of Charge Changing Cross Sections of 200A GeV S and Fragments with Cu Target

REN Guo-Xiao

Chinese Physics C> 1991, Vol. 15> Issue(12) : 1063-1068

Measurement of Charge Changing Cross Sections of 200A GeV S and Fragments with Cu Target

REN Guo-Xiao ^,

Institute of High Energy Physics,Academia Sinica,Beijing 100039

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Abstract：
The charge changing cross sections of 200A GeV S and its fragments P,Si,Al,Mg,Na and Ne in collisions with Cu target are measured.It is shown that the cross sections of secondary fragments are larger than that of primary beams with the same charges.The electromagnetic spallation cross sections deduced show a dependence on charges of projectiles which is consistent with theoretical prediction.

References

[1]

P. B. Price, Ren Guoxiao and W. T. Williarns, Phys. Rev. Lett., 61(1988), 2193.[2] C. Brechtmann and W. Heinrich, Z. Phys., 11330(1988), 407; A331(1988), 463.[3] J. D. Jackson, "Classical Electrodynamics", Wiley, New York, 1975.[4] P. B. Price, He Yudong, Ren Guoxiao and W. T. Williams, 21th 1CRC, OG8.3-11, 1990.[5] G. Gerbier, Ren Guoxiao and P. B. Price, Phys. Rev. Lett., 60(1988), 2258.[6] 吴枚和任国孝, 高能物理与核物理, 11(1987), 145,[7] I. Tanihata, Nucl. Phys., 11488(1988), 113c.[8] P, B. Price and Y. D. He, Phys. Rev., C43(1991), 835.[9] G. D. Westfall etc., Phys. Rev., C19(1979), 1309.

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REN Guo-Xiao. Measurement of Charge Changing Cross Sections of 200A GeV S and Fragments with Cu Target[J]. Chinese Physics C, 1991, 15(12): 1063-1068.

REN Guo-Xiao. Measurement of Charge Changing Cross Sections of 200A GeV S and Fragments with Cu Target[J]. Chinese Physics C, 1991, 15(12): 1063-1068. shu

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

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