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首页> 外文期刊>Physics of atomic nuclei >Diffraction Dissociation of Li-7 and Be-7 Relativistic Nuclei on Proton Targets through the H-3(He-3) + He-4 Channels
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Diffraction Dissociation of Li-7 and Be-7 Relativistic Nuclei on Proton Targets through the H-3(He-3) + He-4 Channels

机译：Li-7和Be-7相对论核通过H-3（He-3）+ He-4通道对质子靶的衍射解离

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摘要

For the fragmentation of Li-7 and Be-7 relativistic nuclei (with momenta of, respectively, P = 3 GeV/c and P = 1.6 GeV/c per nucleon) on proton targets through the H-3(He-3) + He-4 channels, the differential cross sections with respect to the momentum transfer Q to the fragments were calculated on the basis of the cluster version of Akhiezer-Glauber-Sitenko diffraction theory by employing the two-body cluster model for the Li-7 (H-3 + He-4) and Be-7 (He-3 + He-4) nuclei. These calculations, performed in the impulse approximation in the interaction of intranuclear clusters with the target nucleus, explained a strong suppression of the cross sections for reactions on protons at Q lower than 100 MeV/c and higher than 350 MeV/c and the observed irregularities in the behavior off the cross section for Li-7 fragmentation on complex track-emulsion nuclei. Cross-section values close to their experimental counterparts were obtained upon setting the coefficient of two-body clustering in the Li-7 and Be-7 nuclei to k similar or equal to 0.7.
机译：对于Li-7和Be-7相对论核的碎片（每个核子的动量分别为P = 3 GeV / c和P = 1.6 GeV / c）通过H-3（He-3）+质子靶在He-4通道上，通过对Li-7采用两体簇模型，根据Akhiezer-Glauber-Sitenko衍射理论的簇版本，计算了与向碎片传递动量Q​​有关的微分截面。 H-3 + He-4）和Be-7（He-3 + He-4）核。这些计算是在核内簇与目标核相互作用的脉冲近似中进行的，解释了对质子在Q值低于100 MeV / c和高于350 MeV / c时反应的截面的强烈抑制，以及观察到的不规则性。 Li-7片段在复杂径迹-乳核上的断面行为通过将Li-7和Be-7原子核中的两体聚类系数设置为k等于或等于0.7，可以获得接近于实验值的横截面值。

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