重离子弹性散射中的角分散研究

原子核物理评论 , 2008, 25(1): 1-7.

重离子弹性散射中的角分散研究

白真 ^1, , 王琦 ^2, , 韩建龙 ^3, , Sergey Yu Kun ^4,

基金项目: 国家自然科学基金(10675149;10535010) 国家重点基础研究发展规划(973计划)(2007CB815000) 中国科学院方向性项目(KJCX3-SYW-No1;KJCX2-SW-No18)

Angular Dispersion of Elastic Scattering in Heavy Ion Collisions

简要评述了重离子弹性散射角分散研究的内容、方法及物理意义.通过前角区重离子弹性散射产物微分截面的角分布测量,作出角分散图ln(dσ/dθ)-θ2.分析经典偏转函数,从而在实验上确定了反应系统的核虹角.在低能、重靶的重离子反应系统中,核虹角远小于擦边角.晕核及弱束缚核比稳定核具有更小的核虹角和更大的核相互作用范围.经典偏转函数的计算有助于提供一套光学势参数,以便于拟合弹性散射产物的微分截面.

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重离子弹性散射中的角分散研究

Angular Dispersion of Elastic Scattering in Heavy Ion Collisions

参考文献