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A new approach to measure momentum distributions and production cross-sections of neutron rich nuclei using fragment separators

机译：一种使用碎片分离器测量富中子核动量分布和生产截面的新方法

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摘要

The longitudinal momentum distributions of 34 neutron-rich isotopes of elements produced by fragmentation of a ~(76)Ge beam at 132 MeV/u with 13 ≤Z≤27 were scanned using a novel experimental approach where a variety of targets with different thicknesses was used with the fragment separator at constant magnetic rigidity. In comparison to models that describe the shape and centroid of fragment momentum distributions, a parametrization based on the measured data was derived. Details of the transmission calculations, the analysis of their uncertainties, as well as the general analysis of momentum distributions and deduced cross-sections obtained with this approach are presented.
机译：使用新颖的实验方法扫描了由（（76）Ge）束以132 MeV / u的13（≤Z≤27）分解〜（76）Ge束产生的元素的34个富中子同位素的纵向动量分布，该实验方法是使用各种厚度不同的靶与碎片分​​离器一起使用时具有恒定的磁性强度。与描述碎片动量分布的形状和质心的模型相比，基于测量数据得出了参数化。介绍了传递计算的详细信息，不确定性的分析以及使用此方法获得的动量分布和推导截面的一般分析。

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    O.B. Tarasov; D. Bazin; T. Baumann; A. Gade; T.N. Ginter; M. Hausmann; D.J. Morrissey; J. Pereira; M. Portillo; B.M. Sherrill; A. Stolz; M. Thoennessen;

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    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Moscow Region, Russian Federation;

    rnNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA;

    rnNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA;

    rnNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA;

    rnNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA;

    rnNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA;

    rnNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA;

    rnNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA;

    rnNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA;

    rnNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA;

    rnNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA;

    rnNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA;

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