200AGeV硫核及其重碎片与铜核作用的电荷改变总截面的测量

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

测量了200AGeV的^(32)S及其碎片P,si,Al,Mg,Na和Ne与Cu靶作用的电荷改变总截面。观察到次级碎片的电荷改变总截面比相同电荷的初级粒子的要高。导出的电磁散裂截面与弹丸电荷的平方成比例,与理论预言一致。

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.