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首页> 外文期刊>Nuclear Physics, A: Journal Devoted to the Experimental Study of the Fundamental Constituents of Matter and Their Actions >DISSIPATION, POLARIZATION AND FLUCTUATION IN GRAZING HEAVY-ION COLLISIONS AND THE BOUNDARY TO THE CHAOTIC REGIME
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DISSIPATION, POLARIZATION AND FLUCTUATION IN GRAZING HEAVY-ION COLLISIONS AND THE BOUNDARY TO THE CHAOTIC REGIME

机译：严重重离子碰撞中的耗散，极化和波动以及混沌域的边界

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The boundary between the grazing deep inelastic collisions and the quasi-fission or fusion reactions is studied though classical, semiclassical and WKB approximations. Although transfer reactions are responsible for the main part of the large energy loss in grazing collisions that come close to the barrier, the excitation energy is more than compensated by an additional attraction, due to polarization, so that the projectile reaches the barrier almost as if no reactions had taken place. At some distance outside the Coulomb barrier an instability occurs towards a merging of the surfaces, which also appears if no Coulomb barrier exists. Fluctuations in energy, partly due to transfer reactions, but mainly to the zero-point motion of the low-lying surface modes give an important spread in the capture angular momentum. [References: 47]
机译：通过经典，半经典和WKB近似，研究了放牧的深部非弹性碰撞与准裂变或聚变反应之间的边界。尽管转移反应是接近障碍物的掠地碰撞中大量能量损失的主要部分，但由于极化作用，激发能被额外的吸引力所补偿，因此弹丸几乎就好像到达了障碍物一样没有反应发生。在库仑势垒外部一定距离处，会发生表面融合的不稳定性，如果不存在库仑势垒，也会出现不稳定现象。能量的波动部分归因于传递反应，但主要归因于低洼地表模式的零点运动，这在捕获角动量中产生了重要的分布。 [参考：47]

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