Exclusive Electro-disintegration of 3 He at High Q
Exclusive Electro-disintegration of 3 He at High Q
复制标题
高 Q 值下 3 He 的独家电分解
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
T. Abrahamyan
中科院分区：
文献类型：
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作者：
M. Sargsian;T. Abrahamyan
我们发展了一个计算A = 3系统高Q2排他性电衰变的理论框架。本文的主要结果是在广义程函近似（GEA）下计算了被撞击的高能核子与反冲核子的末态相互作用，它使我们能够考虑到核中束缚核子的有限和相对较大的动量。这种方法的重要优点是可以以自洽的方式研究核中的短程相关性。这是由于GEA不像传统的Glauber近似那样需要反冲核子的定态条件，而是明确地处理了反冲核子在核中的费米运动。在此基础上，在衰变函数框架下研究了3He高Q2电衰变中的双核子发射反应.我们在这里的主要动机是探索的可及性的两个和三个核子的短程关联在3 He以及明确地隔离单和双再散射过程中的反应动力学。我们的分析也使我们能够确定新的方法来调查的作用，实际上是未知的三个核子的力量在基态波函数的3他。
We develop a theoretical framework for calculation of high Q 2 exclusive electro-disintegration of A = 3 systems. The main result of this work is the calculation of the final state interaction of the struck energetic nucleon with recoil nucleons within the generalized eikonal approximation (GEA) which allows us to account for the finite and relatively large momenta of the bound nucleons in the nucleus. The important advantage of this approach is the possibility to study in a self-consistent way the short range correlations in nuclei. This is due to the fact that GEA does not require a stationary condition for recoil nucleons as conventional Glauber approximation does, treating explicitly the Fermi motion of recoil nucleons in the nucleus. Based on our calculations, within the decay function framework we study the two-nucleon emission reactions in high Q 2 electro-disintegration of 3 He. Our main motivation here is to explore the accessibility of two– and three– nucleon short range correlations in 3 He as well as to isolate unambiguously single and double rescattering processes in the reaction dynamics. Our analysis allowed us also to identify new approaches for investigating the role of the practically unknown three-nucleon forces in the ground state wave function of 3 He.