高能物理与核物理
高能物理與覈物理
고능물리여핵물리
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS
2007年
11期
1032-1039
,共8页
电荷形状因子%6,8He%相对论Eikonal近似%相对论平均场模型
電荷形狀因子%6,8He%相對論Eikonal近似%相對論平均場模型
전하형상인자%6,8He%상대론Eikonal근사%상대론평균장모형
charge form factor,6,8He,relativistic eikonal approximation,relativistic mean field model
应用相对论Eikonal近似计算了用不同模型给出的6,8He的电荷半径和电荷分布的形状因子,并将结果与6He和4He的实验结果进行了比较.结果显示不同模型给出的电荷半径和电荷形状因子差别很大,表明不同模型给出的晕中子与α核芯的关联有很大的差异.计算和讨论结果为在下一代电子-原子核对撞机上可能进行的实验提供了理论参考,同时,也为现有讨论奇特原子核的理论模型提供了检验.
應用相對論Eikonal近似計算瞭用不同模型給齣的6,8He的電荷半徑和電荷分佈的形狀因子,併將結果與6He和4He的實驗結果進行瞭比較.結果顯示不同模型給齣的電荷半徑和電荷形狀因子差彆很大,錶明不同模型給齣的暈中子與α覈芯的關聯有很大的差異.計算和討論結果為在下一代電子-原子覈對撞機上可能進行的實驗提供瞭理論參攷,同時,也為現有討論奇特原子覈的理論模型提供瞭檢驗.
응용상대론Eikonal근사계산료용불동모형급출적6,8He적전하반경화전하분포적형상인자,병장결과여6He화4He적실험결과진행료비교.결과현시불동모형급출적전하반경화전하형상인자차별흔대,표명불동모형급출적훈중자여α핵심적관련유흔대적차이.계산화토론결과위재하일대전자-원자핵대당궤상가능진행적실험제공료이론삼고,동시,야위현유토론기특원자핵적이론모형제공료검험.
Charge radius and charge form factors of different charge density distributions for 6,8He are calculated with the relativistic Eikonal approximation. Detailed comparisons and discussions are presented.It is found that the charge form factors curves of 6,8He are much lower than the experimental ones of 4He.This is, in principle, consistent with the experimental fact. Whereas detailed comparison among the charge form factors which correspond to different charge distributions show significant deviations. This indicates that the effects of the correlations between the halo neutrons and the α-core in 6,8He with different charge density distributions are quite different. This result would provide a useful reference for the possible experiments on the next-generation electron-nucleus collider and for the tests of different theoretical models for the exotic nuclei 6,8He.