Momentum-space description of three-nucleon breakup reactions including the Coulomb interaction
Momentum-space description of three-nucleon breakup reactions including the Coulomb interaction
复制标题
三核分裂反应（包括库仑相互作用）的动量空间描述
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
P. Sauer
中科院分区：
文献类型：
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作者：
A. Deltuva;A. Fonseca;P. Sauer
在计算质子-氘核分裂和{sup 3}He的三体电磁衰变时考虑了两质子间的库仑相互作用。强子动力学是基于纯粹的核电荷相关（CD）波恩势和它的现实扩展，CD波恩+ {delta}，耦合通道的两重子势，允许单一的虚拟{delta}-同量异位素激发。在动量空间中使用积分方程进行计算。屏蔽和重整化的方法，包括库仑相互作用。收敛的程序被发现在中等筛选半径。证明了该方法的可靠性。在所有能量下，特别是在运动学状态下，都可以看到库仑效应对破裂观测值的影响。
The Coulomb interaction between two protons is included in the calculation of proton-deuteron breakup and of three-body electromagnetic disintegration of {sup 3}He. The hadron dynamics is based on the purely nucleonic charge-dependent (CD) Bonn potential and its realistic extension, CD Bonn + {delta}, to a coupled-channel two-baryon potential, allowing for single virtual {delta}-isobar excitation. Calculations are done using integral equations in momentum space. The screening and renormalization approach is employed for including the Coulomb interaction. Convergence of the procedure is found at moderate screening radii. The reliability of the method is demonstrated. The Coulomb effect on breakup observables is seen at all energies in particular kinematic regimes.