| 1. | Isospin is a vector quantity .
同位旋是矢量。 |
| 2. | The condition of an exchange force has nothing to do with isospin .
交换力的条件与同位旋完全无关。 |
| 3. | These effective coupling constants of mesons embody the feature of the dbhf results , such as short - range correlations and the structure of isospin
和。介子密度依赖的耦合常数，然后，在不对称系数p 0 |
| 4. | The isospin dependent transport theories and their achievements are reviewed . the main subjects for further investigation are pointed
摘要评述了当前中能重离子碰撞中同位旋相关的输运理论及其研究进展，并指出了进一步研究的方向。 |
| 5. | For probing the isospin dependence of the medium correction of two - body cross sections , the results show that the behavior of the excitation function of stopping for medium size nuclear collisions can provide cleare r information than that for heavier systems
我们的结果还表明测量中等大小质量的系统在中能重离子碰撞中的核阻止本领激发函数比测量重的系统能提供更为确切的有关两体截面介质修正的信息。 |
| 6. | Those investigations have improved one ' s understanding of the structure , formation conditions , reaction mechanisms , and excitation modes of halo nuclei . inl990 ' s it was predicted that besides the ground state of the light nuclei near the drip line , the high isospin excited states may also have halo structure
除滴线附近轻核的基态外，九十年代有人预言稳定核的高同位旋激发态也可能具有晕结构， ~ ( 13 ) c第一激发态和~ 6li第二激发态被列为首选的研究对象。 |
| 7. | This should be an incentive to apply the rrpa method with non - linear effective lagrangians to study other systems such as unstable nuclei near drip lines . for nuclei with the extreme value of n / z , low - lying collective excitations are found in isovector dipole modes , which are mainly due to the particle - hole excitation of weakly bound states near fermi surface and the isospin mixture effect
将相对论无规位相近似理论推广应用到奇特核集体激发态的研究，发现对于奇特核的同位旋矢量激发模式在很低能量下会出现软模式的巨偶极共振，这主要是由于费米面附近粒子-空穴激发所形成的。 |
| 8. | The isospin effect and k production in intermediate and high energy heavy ion collisions ( hics ) are hot topics in the nuclear physics . based on the isospin - dependent quantum molecular dyanmics ( iqmd ) model and self - consistent relativistic boltzmann - uehling - uhlenbeck ( rbuu ) model , we have studied them and obtained some interesting results . as for the study of isospin in intermediate energy hics , we ' ve investigated how both stength ( q ) and density dependence of symmetry potential ( sp ) affect many measurable observables , such as the yield , phase - space , and isospin distributions of fragments , as well as the correlations between intermediate - mass - fragment ( imf ) multiplicity n and charged - particle multiplicity n , , light - charged - particle ( lcp ) multiplicity n , and neutron multiplicity n ,
在中能重离子碰撞的同位旋研究方面，分别研究了对称势的强度( c _ s )和其密度依赖形式对中能重离子核反应各类碎片产物产额、相空间、及其同位旋的分布，中等质量碎片多重数( n _ ( imf ) )与带电粒子多重数( n _ c ) 、轻带电粒子多重数( n _ k ) 、中子多重数( n _ n )的关联等多种实验观测量的影响，以获取对称势中该两方面的信息，尤其着重于研究如何分别获取有关该两方面的信息的途径。 |
| 9. | Based on the revers kinetic intermediate energy heavy ion collision in which much more intermediate mass fragments are emitted towards forward angles , a sensitive observable on isospin effects in heavy ion collisions is investigated by means of using isospin dependent quantum molecular dynamics ( iqmd )
摘要在重离子碰撞过程中，基于重质量的弹核轰击轻质量靶核有大量中等质量碎片向前发射的逆运动学效应，利用同位旋相关的量子分子动力学观察和研究了重离子碰撞过程中同位旋效应的灵敏性。 |
| 10. | However , the dirac structure of the nucleon self - energy in the dbhf can not be explicitly obtained in a numerical calculation . therefore a reliable decomposition of the dbhf g matrix is desirable , which is significant for the extraction of effective interactions , especially for the isospin dependence of the effective interactions
然而，在该理论方法中，如何合理地给出dbhf自能的dirac结构对于有效相互作用的提取，特别是同位旋矢量介子有效相互作用耦合常数的提取是十分重要的。 |
