AI 中文总结
该研究结合核格点有效场论密度与形变Glauber模型，揭示内禀形变和弱束缚对铍核反应可观测量的影响，重现10Be到11Be的反应截面增长，还预测了11Be移除反应的动量分布。
AI 中文摘要
我们结合从头算核格点有效场论的三维内禀密度与形变Glauber模型，研究{7-12}Be的高能反应。为将关联多体组态与芯-中子反应形式化关联，且不引入单粒子轨道，我们提出组态分辨方案，经两集团分解识别空间最外层价中子。针对790 MeV/A下Be弹核轰击12C与9Be靶的情况，显式取向平均使11Be的计算反应截面较球对称密度计算降低约50 mb；形变计算重现了10Be至已确立的单中子晕核11Be对两种靶均存在的显著增长。我们进一步计算11Be + 9Be单中子移除反应后碎片的动量分布，发现其形状与63 MeV/A的测量结果吻合良好，并给出790 MeV/A下的预测。这些结果量化了内禀形变与弱束缚如何从微观多体密度传递至反应可观测量。
英文摘要
We combine three-dimensional intrinsic densities from ab initio nuclear lattice effective field theory with a deformed Glauber model to study high-energy reactions of {7-12}Be. To connect the correlated many-body configurations to the core-plus-neutron reaction formalism without imposing a single-particle orbital, we introduce a configuration-resolved prescription that identifies the spatially outermost valence neutron after the two-cluster decomposition. For Be projectiles on 12C and 9Be targets at 790 MeV/A, explicit orientation averaging lowers the calculated reaction cross section of 11Be by up to approximately 50 mb relative to a calculation with the spherically averaged density. The deformed calculation reproduces the pronounced increase from 10Be to the established one-neutron halo nucleus 11Be for both targets. We further calculate the momentum distribution of the fragments after the one-neutron removal reaction of 11Be + 9Be , finding good agreement in shape with the measurement at 63 MeV/A and providing a prediction at 790 MeV/A. These results quantify how intrinsic deformation and weak binding are transmitted from microscopic many-body densities to reaction observables.
