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首页> 外文期刊>Physics of atomic nuclei >Investigation of the mechanism of the reaction B-10(d, p)gamma B-11 at E-d=15.3 MeV by the method of angular p gamma correlations
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Investigation of the mechanism of the reaction B-10(d, p)gamma B-11 at E-d=15.3 MeV by the method of angular p gamma correlations

机译:用角度p伽马相关法研究在E-d = 15.3 MeV时反应B-10(d,p)γB-11的机理

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摘要

The results are presented that were obtained by measuring the differential cross sections for the reaction B-10(d, p)B-11 occurring at E-d = 15.3 MeV and leading to the production of a B-11 nucleus in the ground state (3/2(-)) and in the lowest two excited states (the 1/2(-) state at 2.125 MeV and the 5/2(-) state at 4.445 MeV). The energy dependence of the differential cross section for this reaction was measured for several proton emission angles in the energy range E-d = 12-15.3 MeV. The double-differential cross sections for the reaction B-10(d, p gamma)B-11 were measured for the 5/2(-) state of the B-11 nucleus at 4.445 MeV, and the angular dependences of the even spin-tensor components of the density matrix were reconstructed oil the basis of these data. The angular dependences of the populations of magnetic Sublevels are also given. The experimental results in question are compared with their theoretical counterparts obtained under the assumption of various reaction mechanisms (neutron stripping, heavy-particle stripping, and a two-step mechanism that takes into account the delay of interaction). Oil the basis of this comparison, the deformation parameters of the boron nuclei were found to be beta(2)(B-10) = -0.55 and beta(2)(B-11) = 0.4. (C) 2005 Pleiades Publishing, Inc.
机译:通过测量发生在Ed = 15.3 MeV并导致基态B-11核产生的反应B-10(d,p)B-11的微分横截面获得了结果。 / 2(-))并处于最低的两个激发态(2.125 MeV处的1/2(-)状态和4.445 MeV处的5/2(-)状态)。对于在能量范围E-d = 12-15.3MeV下的多个质子发射角,测量了该反应的微分截面的能量依赖性。在4.445 MeV处测量了B-11原子核的5/2(-)状态下反应B-10(d,pγ)B-11的双微分截面,以及偶数自旋的角度相关性在这些数据的基础上,重构了密度矩阵的张量分量。还给出了磁子能级总体的角度依赖性。将所讨论的实验结果与在各种反应机理(中子汽提,重粒子汽提以及考虑相互作用延迟的两步机理)的假设下获得的理论对应值进行比较。以该比较为基础,发现硼核的形变参数为beta(2)(B-10)= -0.55和beta(2)(B-11)= 0.4。 (C)2005年Pleiades Publishing,Inc.

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